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BC-Code Code of safe practice for solid bulk cargoes - Res A. 434 (XI) (MSC/Circ. 962)
Geldigheid:01-06-2000 t/m Versie:vergelijk Status: Geldig vandaag

Dit onderwerp bevat de volgende rubrieken.

Ingangsdatum: 15-11-1979
Geldig tot en met: 02-12-2004

01 Foreword

Ingangsdatum: 15-11-1979
Geldig tot en met: 02-12-2004


For more than 100 years cargoes such as grain and coal have been shipped in bulk. However, in recent years there has been a marked development in the variety of bulk cargoes carried by sea and they now constitute a significant proportion of international seaborne trade.

Millions of tonnes of these cargoes - coals, concentrates, grains, fertilizers, animal food- stuffs, minerals and ores - are shipped in bulk by sea every year. While the vast majority of these shipments are made without incident, there have been a number of serious casualties which resulted not only in the loss of the ship but also in loss of life.

The problems involved in the carriage of bulk cargoes were recognized by the delegates to the 1960 International Conference on Safety of Life at Sea but at that time it was not possible to frame detailed requirements except for the carriage of grain cargoes. The Conference did recommend, however, in paragraph 55 of Annex D to the Convention, that an internationally acceptable code of safe practice for the shipment of bulk cargoes should be drawn up under the sponsorship of the International Maritime Organization (IMO). This work was undertaken by the Organization's Sub-Committee on Containers and Cargoes and several editions of the "Code of Safe Practice for Solid Bulk Cargoes" (BC Code) have been published, the first appearing in 1965.

The carriage of dangerous goods is principally governed by Chapter VII of the International Convention for the Safety of Life at Sea, 1974, which entered into force on 25 May 1980, superseding the 1960 Convention. A revised chapter VII was adopted by IMO's Maritime Safety Committee in 1983, which amendment entered into force on 1 July 1986. Part A of the revised chapter VII governs the carriage of dangerous goods in both packaged form and in solid form in bulk.
The latest amendments to chapter VII entered into force on 1 February 1992 and 1 January 1994, respectively. The latter amendment also includes a complete revision of chapter VI, which governs solid bulk cargoes in general.

The BC Code itself provides guidance to Administrations, shipowners, shippers and masters on the standards to be applied in the safe stowage and shipment of solid bulk cargoes excluding grain, which is dealt with under separate rules. It includes general advice on the procedures to be followed whenever bulk cargoes are to be shipped, a description of the hazards associated with certain materials, lists of typical materials currently shipped in bulk and details of recommended test procedures to determine various characteristics of solid bulk cargo materials.

The current edition includes completely new descriptions of two test procedures (appendix D) and amendments to appendix B and appendix C.

It should be carefully noted that the list of materials appearing in appendices A, B and C to the Code is by no means exhaustive and the physical properties attributed to them are intended only for guidance. Consequently, before loading any bulk cargo it is essential to ascertain - normally from the shipper - the current physical characteristics and chemical properties of the material.

Since valuable information leading to improvements in this Code may be obtained from voyage reports, it is recommended that masters should be encouraged to notify their Administrations of the behaviour of various types of bulk cargoes and, in particular, to report the circumstances of any incidents involving such materials.

The BC Code is recommended to Governments for adoption or for use as the basis for national regulations in pursuance of their obligations under chapters VI and VII of the 1974 SOLAS Convention, as amended. Those Member States that adopt the Code as a basis for national regulations are invited to advise the Organization accordingly.

 

 

02 Introduction

Ingangsdatum: 15-11-1979
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1 The primary aim of this Code is to promote the safe stowage and shipment of bulk cargoes by:
.1 highlighting the dangers associated with the shipment of certain types of bulk cargoes;
.2 giving guidance on the procedures to be adopted when the shipment of bulk cargoes is contemplated;
.3 listing typical materials currently shipped in bulk together with advice on their properties and handling; and
.4 describing test procedures to be employed to determine various characteristics of the bulk cargo materials.

2 Definitions of the terms used throughout this Code are given in section 1.

3 In general, the hazards associated with the shipment of materials may be considered as falling into the following categories:
.1 Structural damage due to improper distribution of the cargo. Advice on this subject will be found in section 2 and appendices B and C.
.2 Loss or reduction of stability during a voyage This usually results from:
.2.1 A shift of cargo in heavy weather due to the cargo having been inadequately trimmed or improperly distributed; (Advice on this subject will be found in sections 2, 5 and 6 and in appendices B, C and D.2.)
.2.2 Cargoes liquefying under the stimulus of vibration and motion of a ship in a seaway and then sliding or flowing to one side of the cargo hold. Such cargoes contain at least a proportion of finely grained material and some moisture (usually water); (Advice on this subject will be found in sections 7 and 8 and in appendices A and D.1.)
.3 Chemical reactions (e.g. emission of toxic or explosive gases, spontaneous combustion or severe corrosive effects). (Advice on these subjects will be found in sections 3 and 9 and in appendices B, D.4, D.5, D.6 and E.)

4 Unless the physical or chemical properties of the materials presented for shipment are available it will be difficult to determine what precautions, if any, should be taken to ensure safe shipment. It is therefore essential that the shipper should provide adequate information about the material to be shipped. Advice on this subject will be found in section 4.

5 The need for all personnel involved to exercise great care in preparation for and during loading or unloading materials and in particular when entering spaces which may be deficient in oxygen, or which may contain toxic gases, is given special mention in section 3 and appendix F.

6 Lists of typical materials currently shipped in bulk, together with advice on their properties and methods of handling, are given in appendices A, B and C. It is emphasized, however, that these lists are not exhaustive and that the properties attributed to the materials are given only for guidance. Consequently, before loading it is essential to obtain currently valid information on the physical and chemical properties of the materials presented for shipment.

7 Details of test procedures, together with advice on methods of sampling to obtain representative samples for test purposes, are given in sections 7 and 8 and appendix D.

8 The laboratory test procedures described are used for determining the following:
.1 the moisture content, flow moisture point and transportable moisture limit of materials which may liquefy;
.2 the angle of repose of granular materials;
.3 the self-sustaining exothermic decomposition of fertilizers containing nitrates (the trough test);
.4 resistance to detonation; and
.5 self-heating of charcoal.

9 It is strongly recommended that these tests are conducted only by suitably trained personnel. In the cases of 8.1 and 8.2 above, auxiliary check tests which may be employed by the ship's personnel are described. These tests should only be used in circumstances where the master doubts whether the condition of the material is such as to ensure safe shipment.

10 An index listing all the materials mentioned in this Code and indicating the appropriate appendix in which further information will be found is given in the Index of Materials at the end of this Code. Again it is emphasized that this list of materials is not exhaustive.

N.B. If a cargo not listed in this Code is offered for bulk carriage, the master should consult the appropriate competent authority for further information.

Section 01 Definitions

Ingangsdatum: 15-11-1979
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1.1 "Angle of repose" - is the maximum slope angle of non-cohesive (i.e. free-flowing) granular material. It is the angle between a horizontal plane and the cone slope of such material.

1.2 "Cargoes which may - are materials which contain at least some fine particles liquefy" and some moisture, usually water, although they need not be visibly wet in appearance. They may liquefy if shipped with a moisture content in excess of their transportable moisture limit.

1.3 "Concentrates" - are materials obtained from a natural ore by a process of purification by physical or chemical separation and removal of unwanted constituents.

1.4 "Cargo space" - is any space in the ship appropriated for the carriage of cargo.

1.5 "Flow moisture point" - is the percentage moisture content (wet mass basis) at which a flow state develops under the prescribed method of test in a representative sample of the material (see appendix D.1).

1.6 "Flow state" - is a state that occurs when a mass of granular material is saturated with liquid to an extent that, under the influence of prevailing external forces such as vibration, impaction or ship's motion, it loses its internal shear strength and behaves as a liquid.

1.7 "Incompatible materials" - are those materials that may react dangerously when mixed. They are subject to the segregation requirements of 9.3 and the individual entries in appendix B.

1.8 "Moisture content" - is that portion of a representative sample consisting of water, ice or other liquid * expressed as a percentage of the total wet mass of that sample.

1.9 "Moisture migration" - is the movement of moisture contained in materials by settling and consolidation of the material due to vibration and ship's motion. Water is progressively displaced, which may result in some portions or all of the materials developing a flow state.

1.10 "Representative test sample" - is a sample of sufficient quantity for the purpose of testing physical and chemical properties of the consignment to meet specified requirements. It should be collected by means of an appropriate systematic sampling procedure (see 4.3).

1.11 "Shipper" - for the purposes of this Code the term shipper means any person by whom or in whose name or on whose behalf a contract of carriage of goods by sea has been concluded with a carrier, or any person by whom or in whose name or on whose behalf the goods are actually delivered to the carrier in relation to the contract of carriage by sea.

1.12 "Solid bulk cargo" - is any material, other than liquid or gas, consisting of a combination of particles, granules or any larger pieces of material, generally uniform in composition, which is loaded directly into the cargo spaces of a ship without any intermediate form of containment.

1.13 "Stowage factor" - is the figure which expresses the number of cubic metres which one tonne of material will occupy.

1.14 "Transportable - of a cargo which may liquefy represents the maximum moisture moisture limit" content of the material which is considered safe for carriage in ships not complying with the special provisions of 7.2.2 and 7.2.3. It is derived from the flow moisture point (flow table test, appendix D.1) or from data obtained from other test methods approved by the appropriate authority of the port State as being equally reliable.

1.15 "Trimming" - for the purposes of this Code, "trimming" means any levelling of the material within a cargo space, either partial or total, by means of loading spouts or chutes, portable machinery, equipment or manual labour.


* Procedures given in this Code apply only to the usual cases wherein the moisture consists almost entirely of water or ice.

Section 02 General precautions

Ingangsdatum: 15-11-1979
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2.1 Cargo distribution

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2.1.1 General

2.1.1.1 It is very important to ensure that bulk cargoes are properly distributed throughout the ship in order that the structure will never be overstressed and that the ship will have an adequate standard of stability. To do this effectively, however, the master needs to be provided, by the shipper, with adequate information about the material to be shipped, e.g. stowage factor, history of shifting, any particular problems, etc.

2.1.2 To prevent the structure being overstressed

2.1.2.1 When loading a high-density bulk cargo having a stowage factor of about 0.56 m3/t or lower, the loaded conditions are different from those found normally and it is important to pay particular attention to the distribution of weights so as to avoid excessive stresses. A general cargo ship is normally constructed to carry materials of about 1.39 to 1.67 m 3/ t when loaded to full bale cubic and deadweight capacity. Because of the high density of some materials, it is possible, by improper distribution of loading, to stress very highly either the structure locally under the load or the entire hull. It is not practicable to set out exact rules for the distribution of loading in all ships since the structural arrangements may vary greatly. It is therefore recommended that the master be provided with sufficiently comprehensive loading information to enable him to arrange the loading aboard his ship so as not to overstress the structure. In general, masters should be guided by the loading information provided in the ship's stability information booklet and by the results obtained by the use of loading calculators, if available.

2.1.2.2 When detailed information is not available for high-density bulk materials, then the following precautions are recommended:
    .1 the general fore and aft distribution of materials by mass should not differ appreciably from that found satisfactory for general cargoes;
    .2 the maximum number of tonnes of material loaded in any cargo space should not exceed
        0.9 LBD tonnes (2.1.2.2.2)
        where
            L = length of the hold in metres
            B = average breadth of the hold in metres
            D = summer load draught in metres;
    .3 where material is untrimmed or only partially trimmed the corresponding height of material pile peak above the cargo space floor should not exceed
        1.1 X D X stowage factor (2.1.2.2.3)
        where the stowage factor is given in cubic metres per tonne;
    .4 if the material is trimmed entirely level, the maximum number of tonnes of material loaded in any lower hold cargo space may be increased by 20% over the amount calculated by formula (2.1.2.2.2), subject, however, to full compliance with 2.1.2.2.1; and
    .5 because of the stiffening effect of a shaft tunnel on the ship's bottom, lower hold cargo spaces abaft the machinery space may be loaded somewhat more deeply than provided for in 2.1.2.2.2, 2.1.2.2.3 and 2.1.2.2.4, up to about 10% in excess, provided that such additional loading is consistent with 2.1.2.2.1.
    2.1.3 To aid stability

    2.1.3.1 Having regard to regulation 11-1/22.1 of the International Convention for the Safety of Life at Sea (SOLAS), 1974, as amended, a stability information booklet should be provided aboard all ships which are subject to that Convention. Where materials referred to in this Code, and requiring any of the loading and operational precautions specified therein, are to be carried, the information supplied to the master should include all necessary data relative thereto. The master should be able to calculate the stability for the anticipated worst conditions during the voyage as well as that on departure and show that the stability is adequate.

    2.1.3.2 In general, high-density materials should normally be loaded in the lower hold cargo spaces rather than in 'tween-deck cargo spaces.

    2.1.3.3 When, however, it is necessary to carry high-density materials in 'tween-decks or higher cargo spaces, care should be exercised to ensure that the deck area is not overstressed and that the ship's stability is not reduced below the minimum acceptable level as laid down in the ship's stability information booklet supplied to the master.

    2.1.3.4 In transport of high-density material, a particularly careful evaluation should be made of the consequences of sailing with an excessively high GM with consequential violent movement in a seaway.

    2.1.3.5 Shifting divisions and bins, of adequate strength, should be erected whenever bulk materials which are suspected of readily shifting are carried in 'tween-deck cargo spaces or only partially fill a cargo space.

    2.2 Loading and unloading

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    2.2.1 Before loading, the cargo spaces should be inspected and prepared for the particular material which it is intended to load.

    2.2.2 The master should ensure that bilge lines, sounding pipes and other service lines within the cargo space are in good order. Because of the velocity at which some high-density bulk materials are loaded into the cargo space, special care may be necessary to protect cargo space fittings from damage. For this reason it is also prudent to sound bilges after the completion of loading.

    2.2.3 Attention is particularly drawn to bilge wells and strainer plates, which should be specially prepared to facilitate drainage and to prevent entry of the materials into the bilge system.

    2.2.4 The master is advised that precautions should be taken to minimize the extent to which dust may come into contact with the moving parts of deck machinery and external navigational aids.

    2.2.5 Wherever possible, ventilation systems should be shut down or screened and air conditioning systems, if any, placed on recirculation during loading or discharge, in order to minimize the entry of dust into the living quarters or other interior spaces of the ship.

    Section 03 Safety of personnel and ship

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    3.1 General requirements

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    3.1.1 Prior to and during loading, transport and discharge of bulk materials, all necessary safety precautions, including any appropriate national regulations or requirements, should be observed.

    3.1.2 Advice on medical matters is given in the IMO/WHO/ILO Medical First Aid Guide for Use in Accidents Involving Dangerous Goods (MFAG). A copy of the MFAG should be on board each ship.

    3.2 Poisoning, corrosive and asphyxiation hazards

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    3.2.1 Certain bulk materials are liable to oxidation, which in turn may result in oxygen reduction, emission of toxic fumes and self-heating. Others may not oxidize but may emit toxic fumes, particularly when wet. There are also materials which, when wetted, are corrosive to skin, eyes and mucous membranes or to the ship's structure. In these cases, particular attention should be paid to personal protection and the need for special precautions and measures to be taken prior to loading and after unloading.

    3.2.2 It is important, therefore, that the shipper informs the master prior to loading as to whether chemical hazards exist. The master should also refer to appendix B and the necessary precautions, especially those pertaining to ventilation, should be taken.

    3.2.3 Shipmasters are warned that cargo spaces and adjacent spaces may be depleted in oxygen or may contain toxic or asphyxiating gases. An empty cargo space or tank which has remained closed for some time may have insufficient oxygen to support life.

    3.2.4 Many materials frequently carried in bulk are liable to cause oxygen depletion in a cargo space or tank; these include most vegetable products, grains, timber logs and forest products, ferrous metals, metal sulphide concentrates and coal cargoes.

    3.2.5 It is, therefore, essential that entry of personnel into enclosed spaces should not be permitted until tests have been carried out and it has been established that the oxygen content has been restored to a normal level throughout the space and that no toxic gas is present, unless adequate ventilation and air circulation throughout the free space above the material has been effected. It should be remembered that, after a cargo space or tank has been tested and generally found to be safe for entry, small areas may exist where oxygen is deficient or toxic fumes are still present. General precautions and procedures for entering enclosed spaces appear in appendix F and on the Maritime Safety Card. As much publicity as possible should be given to the hazards associated with entry into enclosed spaces. A poster on the subject should be produced. A specimen (reduced format) for such a poster for display on board ships in accommodation or other places, as appropriate, has been included in appendix F.

    3.2.6 Then transporting a bulk cargo which is liable to emit a toxic or flammable gas, or cause oxygen depletion in the cargo space, an appropriate instrument for measuring the concentration of gas or oxygen in the cargo space should be provided. *

    3.2.7 It should be noted that a flammable gas detector is suitable only for testing the explosive nature of gas mixtures.

    3.2.8 Emergency entry into a cargo space should be undertaken only by trained personnel wearing self-contained breathing apparatus, and protective clothing if considered necessary, and always under the supervision of a responsible officer.


    * Refer also to MSC/Circ.487 of 6 June 1988, MSC/Circ.556 of 20 June 1991.

    3.3 Health hazards due to dust

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    3.3.1 To minimize the chronic risks due to exposure to the dust of certain materials carried in bulk, the need for a high standard of personal hygiene of those exposed to the dust cannot be too strongly emphasized. The precautions should include not only the use of appropriate protective clothing and barrier creams when needed but also adequate personal washing and laundering of outer clothing. Although these precautions are good standard practice, they are particularly relevant for those materials identified as toxic by this Code.

    3.4 Flammable atmosphere

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    3.4.1 Dust created by certain cargoes may constitute an explosion hazard, especially while loading, unloading and cleaning. This risk can be minimized at such times by ensuring that ventilation is sufficient to prevent the formation of a dust-laden atmosphere and by hosing down rather than sweeping.


    3.4.2 Some cargoes may emit flammable gases in sufficient quantities to constitute a fire explosion hazard. Where this is indicated in the entries in appendix B, the cargo spaces and adjacent enclosed spaces should be effectively ventilated at all times (see also 9.3.2.1.3 for requirements for mechanical ventilation). It may be necessary to monitor the atmosphere in such spaces by means of combustible-gas indicators. It should be recognized that, in general, combustible-gas measuring instruments are not suitable for checking an atmosphere for the presence of toxic gases.

    3.5 Ventilation

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    3.5.1. Definitions
    For the purpose of this code, ventilation means exchange of air from outside to inside the cargo space to remove any build-up of flammable gases or vapours to a safe point below the Lower Explosive Limit (LEL), or for toxic gases, vapours or dust to a level to maintain a safe atmosphere in a cargo space.
    For ventilation requirements, the following definitions should be applied:
    .1 natural ventilation means ventilation that is not power generated. An air flow is supplied by air ducts and/or other adequately designed openings;
    .2 surface ventilation means ventilation only of the space above the cargo;
    .3 mechanical ventilation means power generated ventilation; and
    .4 continuous ventilation means ventilation that is operating at all times.

    3.5.2. Recommendations on ventilation:
    .1 when continuous ventilation is required by the entry for the cargo in Appendix B of this Code or by the cargo information provided by the shipper, ventilation should be maintained while the cargo is in the hold;
    .2 if maintaining ventilation endangers the ship or the cargo, it may be interrupted unless there is a risk of explosion or other danger due to interruption of the ventilation;
    .3 Holds intended for the carriage of cargoes for which continuous ventilation is required, should be provided with ventilation openings which may be kept opened when required. Such openings should comply with the requirements of the Load Line Convention as amended for openings not fitted with means of closure; and
    .4 Ventilation should be such that any escaping hazardous gases, vapours or dust cannot reach living quarters. Escaping hazardous gases, vapours or dust should not be able to reach work areas unless adequate precautions are taken (refer to Appendix F).

    3.6 Grain under in-transit fumigation

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    3.6.1 Fumigation should be performed in accordance with the latest version of the Recommendations on the Safe Use of Pesticides in Ships.

    3.6.2 A copy of these Recommendations should be on board each ship undergoing in-transit fumigation, for use by ship's personnel.

    Section 04 Assessment of acceptability of consignments for safe shipment

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    4.1 Provision of information

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    4.1.1 Prior to shipment, the shipper should provide details regarding the nature of the material.

    4.1.2 Prior to loading, the shipper or his appointed agent should provide to the master details, as appropriate, of the characteristics and properties, e.g. chemical hazards such as toxicity, corrosivity, etc., flow moisture point, stowage factor, moisture content, angle of repose, drainage to form a wet base, etc., of any material constituting bulk cargo in order that any safety precautions which may be necessary can be put into effect.

    4.1.3 To do this the shipper will need to arrange, possibly in consultation with the producers, for the material to be properly sampled and tested. Furthermore, the shipper should provide the ship's master with the appropriate certificates of test, as applicable for a given material.

    4.2 Certificates of test

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    4.2.1 A certificate or certificates stating the relevant characteristics of the material to be loaded should be provided to the master at the loading point.

    4.2.2 Certificates stating the transportable moisture limits should contain, or be accompanied by, a statement by the shipper that the moisture content specified in the certificate of moisture content is, to the best of his knowledge and belief, the average moisture content of the material at the time the certificate is presented to the master. When cargo is to be loaded into more than one cargo space of a ship, the certificate of moisture content should certify the moisture content of each type of finely grained material loaded into each cargo space. However, if sampling according to the procedures recommended in this Code indicates that the moisture content is uniform throughout the consignment, then one certificate of average moisture content for all cargo spaces should be acceptable.

    4.2.3 Where certification is required by appendix B for materials possessing chemical hazards, the certificate should contain or be accompanied by a statement from the shipper that the chemical characteristics of the material are, to the best of his knowledge, those existing at the time of the ship's loading.

    4.3 Sampling procedures

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    4.3.1 It is evident that any physical property tests on the material will be meaningless unless they are conducted on test samples which are established as truly representative of the consignment, prior to loading.

    4.3.2 Sampling should be conducted only by persons who have been suitably trained in sampling procedures and who are under the supervision of someone who is fully aware of the properties of the material and also the applicable principles and practices of sampling.

    4.3.3 Prior to taking samples, and within the limits of practicability, a visual inspection of the material which is to form the ship's cargo should be carried out. Any substantial portions of material which appear to be contaminated or significantly different in characteristics or moisture content from the bulk of the consignment should be sampled and analyzed separately. Depending upon the results obtained in these tests, it may be necessary to reject those particular portions as unfit for shipment.

    4.3.4 Representative samples should be obtained by employing techniques which take the following factors into account:
    .1 the type of material;
    .2 the particle size distribution;
    .3 composition of the material and its variability;
    .4 the manner in which the material is stored, in stockpiles, rail wagons or other containers, and transferred or loaded by material-handling systems such as conveyors, loading chutes, crane grabs, etc.;
    .5 the chemical hazards (toxicity, corrosivity, etc.), if any;
    .6 the characteristics which have to be determined: moisture content, flow moisture point, bulk density/stowage factor, angle of repose, etc.;
    .7 variations in moisture distribution throughout the consignment which may occur due to weather conditions, natural drainage, e.g. to lower levels of stockpiles or containers, or other forms of moisture migration; and
    .8 variations which may occur following freezing of the material.

    4.3.5 Throughout the sampling procedures, the utmost care should be taken to prevent changes in quality and characteristics. Samples should be immediately placed in suitable sealed containers which are properly marked.

    4.3.6 Useful guidance on the method of sampling to be employed may be obtained from internationally or nationally recognized procedures such as those listed in 4.6.

    4.4 Frequency of sampling and testing for "flow moisture point" and "moisture content" determination

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    4.4.1 A test to determine the "flow moisture point" of cargoes which may liquefy should be conducted at regular intervals. Even in the case of materials of consistent composition, this test should be conducted at least once every six months. However, where the composition or characteristics are variable for any reason, more frequent testing is necessary. In such cases, testing once every three months and possibly more frequently is essential as such variations could have a significant effect on the value of the flow moisture point. In certain cases it will be necessary to test every shipment.

    4.4.2 Sampling and testing for "moisture content" should be conducted as near as possible to the time of loading, but in any event the time interval between sampling/testing and loading should never be more than seven days unless the consignment is adequately protected to ensure that no change occurs in its moisture content. Furthermore, whenever there has been significant rain or snow between the time of testing and loading, check tests should be conducted to ensure that the material is still in a safe state to load.

    4.4.3 Samples of frozen cargo should be tested for the transportable moisture limit when the free moisture is completely thawed.

    4.5 Sampling procedures for concentrate stockpiles

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    4.5.1 It is not practicable at the present time to specify a single method of sampling for all consignments since the character of the material and the form in which it is available will affect the selection of the procedure to be used. Where national or international sampling standards cannot be applied, the following sampling procedure for concentrate stockpiles is recommended as a minimum for determining flow moisture point and moisture content. These procedures are not intended to replace sampling procedures, such as the use of automatic sampling, that achieve equal or superior accuracy of either flow moisture point or moisture content.

    4.5.2 Subsamples should be taken in a reasonably uniform pattern, if at all possible from a levelled stockpile. A plan of the stockpile should be drawn and divided into areas, each of which contains approximately 125 t, 250 t or 500 t depending on the amount of concentrate to be shipped. Such a plan will indicate to the sampler the number of subsamples required and from where each is to be taken. Each subsample taken should be drawn from approximately 50 cm below the surface of the designated area.

    4.5.3 The number of subsamples and sample size required should be given by the competent authority or determined in accordance with the following scale:
      Consignments of less than 15,000 t:
      One 200 g subsample should be taken for each 125 t to be shipped.
      Consignments of more than 15,000 but less than 60,000 t:
      One 200 g subsample should be taken for each 250 t to be shipped.
      Consignments in excess of 60,000 t:
      One 200 g subsample should be taken for each 500 t to be shipped.
      4.5.4 Subsamples for moisture content determination should be placed in sealed containers (such as plastic bags, cans, or small metallic drums) immediately on withdrawal for conveyance to the testing laboratory, where they should be thoroughly mixed in order to obtain a fully representative sample. Where testing facilities are not available at the testing site, such mixing should be done under controlled conditions at the stockpile and the representative sample placed in a sealed container and shipped to the test laboratory.

      4.5.5 Basic procedural steps are therefore:
      .1 identification of consignment to be sampled;
      .2 determination of the number of individual subsamples and representative samples, as described in 4.3.3 and 4.5.3, which are required;
      .3 determination of the positions from which to obtain subsamples and the method of combining such subsamples to arrive at a representative sample;
      .4 gathering of individual subsamples and placing them in sealed containers;
      .5 thorough mixing of subsamples to obtain the representative sample; and
      .6 placing the representative sample in a sealed container if it has to be shipped to a test laboratory.

      4.6 Standardized sampling procedures

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      ISO 3081: 1986 - Iron ores - Increment sampling - Manual method
      ISO 1988: 1975 - Hard coal - Sampling
      -ASTM D 2234 - American Standard Procedures for Sampling Coal
      Australian Standards
      AS 1676-1975 - Methods for the sampling of hard coal
      AS 1141-1974 - Methods for sampling and testing aggregates
      -BS 1017: - British Standard methods for sampling of coal
      Part 1:1989
      -Canadian Standard Sampling Procedure for Concentrate Stockpiles
      -European Communities Method of Sampling for the Control of Fertilizers
      -JIS M 8100 - Japanese General Rules for Methods of Sampling of Bulk Materials
      -Polish Standard Sampling Procedure for:
      Iron and Manganese Ores       -       Ref. No. PN-67/H-04000
      Nonferrous Metals       -       Ref. No. PN-70/H-04900
      -Russian Federation Standard Sampling Procedure for the determination of Moisture Content in Ore Concentrates

      Section 05 Trimming procedure

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      5.1 General precautions

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      5.1.1 To minimize the risk of a bulk material shifting, the cargo should be trimmed reasonably level to the boundaries of the cargo space.

      5.1.2 Circumstances may occur where the degree of trimming necessary is determined by the properties of the material. These circumstances would be established from the documented history of shipments of such materials. All relevant information, including the trimming practice to be applied, should be supplied in writing to the master by the shipper prior to loading. In any circumstances of doubt, the cargo should be trimmed in accordance with 5.1.1.

      5.1.3 Cargo spaces should be filled as full as practicable without resulting in an excessive mass of the material on the bottom structure or 'tween-deck.

      5.2 Specific precautions

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      5.2.1 Ships of 100 m in length or less
      The importance of trimming as an effective means of reducing the possibility of a shift of a material can never be overstressed and it is particularly important in ships of 100 m in length or less.

      5.2.2 Multi-deck ships

      5.2.2.1 When a material is loaded only in lower cargo spaces, it should be trimmed sufficiently to equalize the mass distribution on the bottom structure.

      5.2.2.2 When bulk cargoes are carried in 'tween-decks, the hatchways of such 'tween-decks shall be closed in those cases where the loading information indicates an unacceptable level of stress of the bottom structure if the hatchways are left open. The cargo shall be trimmed reasonably level and shall either extend from side to side or be secured by additional longitudinal divisions of sufficient strength. The safe load-carrying capacity of the 'tween-decks shall be observed to ensure that the deck structure is not overloaded. *

      5.2.3 Cohesive bulk cargoes
      All damp materials and some dry ones possess cohesion (refer to appendices B and C). For cohesive cargoes, the general precautions in subsection 5.1 apply.

      5.2.4 Non-cohesive bulk cargoes

      5.2.4.1 Bulk cargoes can be categorized for trimming purposes as cohesive or non-cohesive as denoted in appendices B and C. The angle of repose is a characteristic of non-cohesive bulk cargoes which is indicative of cargo stability. Methods for determining the angle of repose are given in section 6.

      5.2.4.2 Non-cohesive bulk cargoes having an angle of repose less than or equal to 30°
      These materials, which flow freely like grain, should be carried according to the provisions applicable to the stowage of grain cargoes. ** However, account should be taken of the density of the material when determining:
      .1 the scantlings and securing arrangements of divisions and bin bulkheads; and
      .2 the stability effect of free cargo surfaces.

      5.2.4.3 Non-cohesive bulk cargoes having an angle of repose from 30° to 35° inclusive Such cargoes should be trimmed according to the following criteria:
      .1 the unevenness of the cargo surface measured as the vertical distance (Δh) between the highest and lowest levels of the cargo surface should not exceed B/10, where B is the beam of the ship in metres, with a maximum allowable Δh = 1.5 m;
      .2 where Δh cannot be measured, bulk shipment can also be accepted if loading is carried out with trimming equipment approved by the competent authority.

      5.2.4.4 Non-cohesive bulk cargoes having an angle of repose greater than 35°
      A material having an angle of repose greater than 35° degrees should be loaded with care, the aim being to distribute the material in a manner which eliminates the formation of wide, steeply sloped voids beyond the trimmed surface within the boundaries of the cargo space. The material should be trimmed to an angle significantly less than the angle of repose.


      * Refer also to SOLAS 1974 as amended, Chapter VI, regulation 7.2 (entry into force 1 January 1984) See resolution MSC.22(59).
      ** Refer to chapter VI of SOLAS 1974, as amended, and the mandatory International Code for the Safe Carriage of Grain in Bulk.

      Section 06 Methods of determining the angle of repose

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      6.1 There are various alternative methods in use to determine the angle of repose for non-cohesive bulk materials and two common methods are listed below for information.
      .1 "Tilting box method". This laboratory test method is suitable for non-cohesive granular materials having a grain size not greater than 10 ‡o. It is not appropriate for cohesive materials (all damp and some dry materials). A full description of the equipment and procedure is given in D.2.1 of appendix D.
      .2 "Shipboard test method". In the absence of a tilting box apparatus, an alternative procedure for determining the approximate angle of repose is given in D.2.2 of appendix D.

      Section 07 Cargoes which may liquefy

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      7.1 Properties, characteristics and hazards

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      7.1.1 Cargoes which may liquefy will contain moisture and at least a proportion of small particles. Appendix A contains a list of some such cargoes, including concentrates, certain coals and other materials having similar physical properties. Cargoes which consist entirely of large particles or lumps or are entirely dry will not liquefy.

      7.1.2 At a moisture content above that of the transportable moisture limit, shift of cargo may occur as a result of liquefaction. It should be noted that certain cargoes, as identified by the appropriate authorities, are susceptible to rapid moisture migration and may develop a dangerous wet base during a voyage, even if the average cargo moisture content is less than the TML. Such cargoes should be trimmed reasonably level and loaded as deeply as practicable.

      7.1.3 The major purpose of the sections of this Code dealing with these cargoes is to draw the attention of masters and others to the latent risk of cargo shift and to describe the precautions which are deemed necessary to minimize this risk. Such cargoes may appear to be in a relatively dry granular state when loaded, and yet may contain sufficient moisture to become fluid under the stimulus of compaction and the vibration which occurs during a voyage.

      7.1.4 In the resulting viscous fluid state, cargo may flow to one side of the ship with a roll one way but not completely return with a roll the other way. Thus, the ship may progressively reach a dangerous heel and capsize.

      7.1.5 To prevent subsequent shifting and also to decrease the effects of oxidation when the material has a predisposition to oxidize, these cargoes should be trimmed reasonably level on completion of loading, irrespective of the stated angle of repose.

      7.2 Precautions

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      7.2.1 General

      7.2.1.1 Ships other than specially constructed or fitted ships (see 7.2.2 and 7.2.3) should carry only those cargoes having a moisture content not in excess of the transportable moisture limit as defined in this Code.

      7.2.1.2 Cargoes which contain liquids, other than packaged canned goods or the like, should not be stowed in the same cargo space above or adjacent to a consignment of these cargoes.

      7.2.1.3 Adequate precautions to prevent liquids entering the cargo space in which these materials are stowed should be maintained during the voyage. Such precautions are of paramount importance in the case of some of these materials where contact with seawater could lead to serious problems or corrosion to either the hull or machinery items.

      7.2.1.4 Masters are cautioned of the possible danger in using water to cool a shipment of these materials while the ship is at sea since the admission of water in quantity may well bring the moisture content of these materials to a flow state. Water is most effectively applied in the form of a spray.

      7.2.2 Specially fitted cargo ships

      7.2.2.1 Materials having a moisture content in excess of the transportable moisture limit may be carried in cargo ships which are fitted with specially designed portable divisions to confine any shift of cargo to an acceptable limit.

      7.2.2.2 The design and positioning of such special arrangements should adequately provide for not only the restraint of the immense forces generated by the flow movement of high-density bulk cargoes, but also the need to reduce to an acceptable safe level the potential heeling movements arising out of a cargo flow transversely across the cargo space. Divisions provided to meet these requirements should not be constructed of wood.

      7.2.2.3 It may also be necessary for elements of the ship's structure bounding such cargo to be strengthened.

      7.2.2.4 The plan of special arrangements deemed necessary and details of the stability conditions on which the design has been based should have been approved by the Administration of the country of the ship's registry. In such cases the ship concerned should carry evidence of approval by its Administration.

      7.2.3 Specially constructed cargo ships

      7.2.3.1 Materials having a moisture content in excess of the transportable moisture limit may be carried in specially constructed cargo ships which have permanent structural boundaries, so arranged as to confine any shift of cargo to an acceptable limit. The ship concerned should carry evidence of approval by its Administration.

      7.2.4 Submission of data

      7.2.4.1 A submission made to the Administration for approval of such a ship under 7.2.2 or 7.2.3 should include:
      .1 scaled longitudinal and transverse sections, drawings and relevant structural drawings;
      .2 stability calculations, taking into account loading arrangements and possible shift of the cargo, showing the distribution of cargo and liquids in tanks, and of cargo which may become fluid; and
      .3 any other information which may assist in the assessment of the submission.

      Section 08 Cargoes which may liquefy - test procedures

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      8.1 The recommended test procedures given in appendix D provide for the laboratory determination of:
      .1 the moisture content of representative samples of the material to be loaded; and
      .2 the flow moisture point and the transportable moisture limit of the material.

      8.2 If the circumstances are such that a laboratory test cannot be made of the material about to be loaded and a suitable drying oven and a weighing scale are available on board ship, an auxiliary check test of the moisture content of the material about to be loaded may be carried out according to the procedures specified in paragraph D.1.1.4.4 of appendix D. Other methods for direct measurement of moisture content approved by the appropriate authority for specific materials may be used for this purpose. Where the moisture content is above or near the transportable moisture limit, the material should not be accepted until proper laboratory tests have been completed.

      8.3 If the master has doubts as regards the appearance or condition of the material for safe shipment, a check test for approximately determining the possibility of flow may be carried out on board ship or at the dockside by the following auxiliary method: Half fill a cylindrical can or similar container (0.5 to 1 . capacity) with a sample of the material. Take the can in one hand and bring it down sharply to strike a hard surface such as a solid table from a height of about 0.2 m. Repeat the procedure 25 times at one or two-second intervals. Examine the surface for free moisture or fluid conditions. If free moisture or a fluid condition appears, arrangements should be made to have additional laboratory tests conducted on the material before it is accepted for loading.

      8.4 The recommended test procedures given in appendix D reflect the majority opinion of those countries participating in its preparation. However, other methods which have been approved by the appropriate authorities as being equally reliable may be used.

      Section 09 Materials possessing chemical hazards

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      9.1 General

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      9.1.1 Solid materials transported in bulk which can present a hazard during transport because of their chemical nature or properties are listed in appendix B. Some of these materials are classified as dangerous goods in the "International Maritime Dangerous Goods Code" (IMDG Code), others are materials which may cause hazards when transported in bulk (MHB).

      9.1.2 It is important to note that this list of materials is not exhaustive. It is there for essential to obtain currently valid information about the physical and chemical properties of the materials to be shipped in bulk prior to loading whenever such shipment is contemplated. When materials not listed in appendix B are carried which fall within the classification of

      9.2.2, the ship concerned should carry evidence of the approval of the competent authority for their transport.

      9.1.3 Where consultation with the competent authority is required prior to bulk shipment of a material, it is equally important to consult authorities at the ports of loading and discharge concerning requirements which may be in force.

      9.2 Classes of hazard

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      9.2.1 The classification of materials possessing chemical hazards and intended to be shipped in bulk under the requirements of this Code should be in accordance with 9.2.2 and 9.2.3.

      9.2.2 Classification
      Chapter VII of the International Convention for the Safety of Life at Sea, 1974, as amended, sets out the various classes of dangerous goods. For the purpose of this Code it has been found more convenient to designate these classes in accordance with the IMDG Code and to define in greater detail the materials which would fall within each class. Additionally, "materials hazardous only in bulk" (MHB) are defined in this section.

      9.2.2.1 Class 4.1: Flammable solids
      These materials possess the properties of being easily ignited by external sources such as sparks and flames and of being readily combustible or of being liable to cause or con-tribute to fire through friction.

      9.2.2.2 Class 4.2: Substances liable to spontaneous combustion.
      These materials possess the common property of being liable to heat spontaneously and to ignite.

      9.2.2.3 Class 4.3: Substances which, in contact with water, emit flammable gases.
      These materials possess the common property, when in contact with water, of evolving flammable gases. In some cases these gases are liable to spontaneous ignition.

      9.2.2.4 Class 5.1: Oxidizing substances (agents)
      These materials, although in themselves not necessarily combustible, may, either by yielding oxygen or by similar processes, increase the risk and intensity of fire in other materials with which they come into contact.

      9.2.2.5 Class 6.1: Toxic substances
      These materials are liable either to cause death or serious injury or to harm human health if swallowed or inhaled, or by skin contact.

      9.2.2.6 Class 6.2: Infectious substances
      These materials contain viable micro-organisms or their toxins which are known or suspected to cause disease in animals or humans.

      9.2.2.7 Class 7: Radioactive materials
      These materials spontaneously emit a significant radiation. Their specific activity is greater than 70 kBq/kg (2 nCi/g).

      9.2.2.8 Class 8: Corrosives
      These materials possess in their original state the common property of being able more or less severely to damage living tissue.

      9.2.2.9 Class 9: Miscellaneous dangerous substances and articles.
      These materials present a hazard not covered by other classes.

      9.2.3 Materials hazardous only in bulk (MHB)
      These materials, when carried in bulk, present sufficient hazards to require specific precautions.
      For example, materials which are liable to reduce the oxygen content in a cargo space and those materials liable to self-heating or which become hazardous when wet are regarded as belonging to this group (see also 3.2.3, 3.2.4 and 3.2.5).

      9.3 Stowage and segregation requirements

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      9.3.1 General requirements

      9.3.1.1 The potential hazards of the materials listed in appendix B and falling within the classification of 9.2.2 and 9.2.3 entail the need for segregation of incompatible materials.

      9.3.1.2 In addition to general segregation as between whole classes of materials, there may be a need to segregate a particular material from others which would contribute to its hazard. In the case of segregation from combustible materials this should be understood not to include packaging material, ceiling or dunnage; the latter should in these circumstances be kept to a minimum.

      9.3.1.3 For the purpose of segregating incompatible materials, the words "hold" and "compartment" are deemed to mean a cargo space enclosed by steel bulkheads or shell plating and by steel decks. The boundaries of such a space should be resistant to fire and liquid.

      9.3.1.4 When two or more different incompatible materials are to be transported in bulk, the segregation between them should be at least equivalent to that described under "separated from" (see 9.3.4).

      9.3.1.5 Where different grades of a material are transported in bulk in the same cargo space, the most stringent segregation provisions applicable to any of the different grades should apply to all of them.

      9.3.1.6 When materials in bulk and dangerous goods in packaged form are to be transported, the segregation between them should be at least equivalent to that described in 9.3.3.

      9.3.1.7 Incompatible materials should not be handled simultaneously. In particular, contamination of foodstuffs should be avoided. Upon completion of loading one such material, the hatch covers of every cargo space containing it should be closed and the decks cleaned of residue before loading of other materials is commenced. When discharging, the same procedures should be followed.

      9.3.1.8 To avoid contamination, a material which is indicated as toxic should be stowed "separated from" all foodstuffs (see 9.3.4).

      9.3.1.9 Materials which may evolve toxic gases in sufficient quantities to affect health should not be stowed in those spaces from where such gases may penetrate into living quarters, work areas, or ventilation systems.

      9.3.1.10 Materials which present corrosive hazards of such intensity as to affect either human tissue or the ship's structure should only be loaded after adequate precautions and protecting measures have been taken.

      9.3.1.11 After discharge of a material for which toxicity is indicated, spaces used for its transport should be inspected for contamination. A space which has been contaminated should be properly cleaned and examined before being used for other cargoes, especially foodstuffs.

      9.3.1.12 After discharge of materials, a close inspection should be made for any residue which should be removed before the ship is presented for other cargo; such an inspection is particularly important when materials having corrosive properties have been transported.
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      9.3.1.1 The potential hazards of the materials listed in appendix B and falling within the classification of 9.2.2 and 9.2.3 entail the need for segregation of incompatible materials.

      9.3.1.2 In addition to general segregation as between whole classes of materials, there may be a need to segregate a particular material from others which would contribute to its hazard. In the case of segregation from combustible materials this should be understood not to include packaging material, ceiling or dunnage; the latter should in these circumstances be kept to a minimum.

      9.3.1.3 For the purpose of segregating incompatible materials, the words "hold" and "compartment" are deemed to mean a cargo space enclosed by steel bulkheads or shell plating and by steel decks. The boundaries of such a space should be resistant to fire and liquid.

      9.3.1.4 When two or more different incompatible materials are to be transported in bulk, the segregation between them should be at least equivalent to that described under "separated from" (see 9.3.4).

      9.3.1.5 Where different grades of a material are transported in bulk in the same cargo space, the most stringent segregation provisions applicable to any of the different grades should apply to all of them.

      9.3.1.6 When materials in bulk and dangerous goods in packaged form are to be transported, the segregation between them should be at least equivalent to that described in 9.3.3.

      9.3.1.7 Incompatible materials should not be handled simultaneously. In particular, contamination of foodstuffs should be avoided. Upon completion of loading one such material, the hatch covers of every cargo space containing it should be closed and the decks cleaned of residue before loading of other materials is commenced. When discharging, the same procedures should be followed.

      9.3.1.8 To avoid contamination, a material which is indicated as toxic should be stowed "separated from" all foodstuffs (see 9.3.4).

      9.3.1.9 Materials which may evolve toxic gases in sufficient quantities to affect health should not be stowed in those spaces from where such gases may penetrate into living quarters, work areas, or ventilation systems.

      9.3.1.10 Materials which present corrosive hazards of such intensity as to affect either human tissue or the ship's structure should only be loaded after adequate precautions and protecting measures have been taken.

      9.3.1.11 After discharge of a material for which toxicity is indicated, spaces used for its transport should be inspected for contamination. A space which has been contaminated should be properly cleaned and examined before being used for other cargoes, especially foodstuffs.

      9.3.1.12 After discharge of materials, a close inspection should be made for any residue which should be removed before the ship is presented for other cargo; such an inspection is particularly important when materials having corrosive properties have been transported.

      9.3.1.13 For materials for which in case of an emergency the hatches should be opened, these hatches should be kept free to be capable of being opened up.

      9.3.2 Special requirements

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      9.3.2.1 Materials of classes 4.1, 4.2 and 4.3

      9.3.2.1.1 Materials of these classes should be kept as cool and dry as reasonably practicable and should be stowed clear of all sources of heat or ignition.

      9.3.2.1.2 Electrical fittings and cables should be in good condition and properly safeguarded against short circuits and sparking. Where a bulkhead is required to be suitable for segregation purposes, cable and conduit penetrations of the decks and bulkheads should be sealed against the passage of gas and vapour.

      9.3.2.1.3 Materials liable to give off vapours or gases which can form an explosive mixture with air should be stowed in a mechanically ventilated space.

      9.3.2.1.4 Prohibition of smoking in dangerous areas should be enforced, and clearly legible "NO SMOKING" signs should be displayed.

      9.3.2.2 Materials of class 5.1

      9.3.2.2.1 Materials of this class should be kept as cool and dry as reasonably practicable and should be stowed clear of all sources of heat or ignition. They should also be stowed "separated from" other combustible materials.

      9.3.2.2.2 Before loading materials of this class, particular attention should be paid to the cleaning of the cargo spaces into which they will be loaded. As far as reasonably practicable, non-combustible securing and protecting materials and only a minimum of dry wooden dunnage should be used.

      9.3.2.2.3 Precautions should be taken to avoid the penetration of oxidizing materials into other cargo spaces, bilges, etc.

      9.3.2.3 Materials of class 7

      9.3.2.3.1 Cargo spaces used for the transport of Low Specific Activity Materials (LSA-I) and Surface Contaminated Objects (SCO-I) should not be used for other cargoes until decontaminated by a qualified person such that the non-fixed contamination on any surface when averaged over an area of 300cm2 does not exceed the following levels:

      4 Bq/cm2 ( 10- 4 micro Ci/cm2) for beta and gamma emitters and the low-toxicity alpha emitters; natural uranium; natural thorium; uranium-235 or uranium-238; thorium-232; thorium-228 and thorium-230 when contained in ores, physical or chemical concentrates; radionuclides with a half-life of less than 10 days; and
      0.4 Bq/cm2 ( 10- 5 Ci/cm2) for all other alpha emitters.


      9.3.2.4 Materials of class 8 or materials having similar properties

      9.3.2.4.1 These materials should be kept as dry as reasonably practicable.

      9.3.2.4.2 Before loading these materials, attention should be paid to the cleaning of the cargo spaces into which they will be loaded and in particular whether these spaces are dry.

      9.3.2.4.3 Penetration of these materials into other cargo spaces, bilges, wells and between the ceiling boards should be prevented.

      9.3.2.4.4 Particular attention should be paid to the cleaning of the cargo spaces after unloading, as residues of these cargoes may be highly corrosive to the ship's structure. Hosing down of the cargo spaces followed by careful drying is preferred.

      9.3.3

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      Segregation between bulk materials possessing chemical hazards and dangerous goods in packaged form Unless otherwise required in this section or in the individual entries in appendix B, segregation between bulk materials and dangerous goods in packaged form should be in accordance with the following table. For packaged dangerous goods the individual schedules of the IMDG Code should be consulted for additional requirements with regard to stowage and segregation.

      9.3.4

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      Segregation between incompatible bulk materials possessing chemical hazards. Unless otherwise required in this section or in the individual entries in appendix B, segregation between incompatible bulk materials possessing chemical hazards should be according to the following table:

      Numbers relate to the following segregation terms:

      Section 10 Transport of solid wastes in bulk

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      10.1 Preamble

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      10.1.1 The transboundary movement of wastes represents a threat to human health and to the environment.

      10.1.2 Wastes should, therefore, be carried in accordance with the relevant international recommendations and conventions and in particular, where it concerns transport by sea, with the provisions of this Code.

      10.2 Definitions

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      10.2.1 "Wastes", for the purpose of this section, are solid materials containing or contaminated with one or more constituents which are subject to the provisions of this Code applicable to materials of classes 4.1, 4.2, 4.3, 5.1, 6.1, 8 or 9 and for which no direct use is envisaged but which are carried for dumping, incineration or other methods of disposal.

      10.2.2 "Transboundary movement" means any shipment of wastes from an area under the national jurisdiction of one country to or through an area under the national jurisdiction of another country, or to or through an area not under the national jurisdiction of any country, provided at least two countries are involved in the movement.

      10.3 Applicability

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      10.3.1 The provisions of this section are applicable to the transport of solid wastes in bulk by ships and should be considered in conjunction with all other provisions of this Code.

      10.3.2 Wastes containing or contaminated with radioactive materials are subject to the provisions applicable to the transport of radioactive materials and are not to be considered as wastes for the purposes of this section.

      10.4 Permitted shipments

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      10.4.1 Transboundary movement of wastes is permitted to commence only when:
      .1 notification has been sent by the competent authority of the country of origin, or by the generator or exporter through the channel of the competent authority of the country of origin, to the country of final destination; and
      .2 the competent authority of the country of origin, having received the written consent of the country of final destination stating that the wastes will be safely incinerated or treated by other methods of disposal, has given authorization for the movement.

      10.5 Documentation

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      10.5.1 In addition to the required documentation to be prepared for the transport of solid bulk materials, all transboundary movements of wastes should be accompanied by a waste movement document from the point at which a transboundary movement commences to the point of disposal. This document should be available at all times to the competent authorities and to all persons involved in the management of waste transport operations.

      10.5.2 If wastes, other than radioactive wastes, are offered for shipment, the word "waste" should be included in the shipping documents.

      10.6 Classification of wastes

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      10.6.1 A waste containing only one constituent which is a material subject to the provisions of this Code applicable to materials of classes 4.1, 4.2, 4.3, 5.1, 6.1, 8 or 9 should be regarded as being that particular material. If the concentration of the constituent is such that the waste continues to present a hazard inherent in the constituent itself, it should be included in the class applicable to that constituent.

      10.6.2 A waste containing two or more constituents which are materials subject to the provisions of this Code applicable to materials of classes 4.1, 4.2, 4.3, 5.1, 6.1, 8 or 9 should be classified under the applicable class in accordance with their dangerous characteristics and properties as described in 10.6.3 and 10.6.4.

      10.6.3 The classification according to dangerous characteristics and properties should be carried out as follows:
      .1 determination of the physical and chemical characteristics and physiological properties by measurement or calculation followed by classification according to the criteria applicable to the constituents; or
      .2 if the determination is not practicable, the waste should be classified according to the constituent presenting the predominant hazard.

      10.6.4 In determining the predominant hazard, the following criteria should be taken into account:
      .1 if one or more constituents fall within a certain class and the waste presents a hazard inherent in these constituents, the waste should be included in that class; or
      .2 if there are constituents falling under two or more classes, the classification of the waste should take into account the order of predominance applicable to materials with multiple hazards set out in subsection 5.2 of the General Introduction to the International Maritime Dangerous Goods Code (IMDG Code).

      10.7 Stowage and handling of wastes

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      10.7.1 Wastes should be stowed and handled in accordance with the provisions of sections 1 to 9 of this Code and with any additional provision included in the individual schedule of appendix B applicable to the constituent presenting the predominant hazard.

      10.8 Segregation

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      10.8.1 Wastes should be segregated in accordance with the provisions of 9.3.3 and 9.3.4, as appropriate.

      10.9 Accident procedures

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      10.9.1 In the event that, during transport, a waste will constitute a danger for the carrying ship or the environment, the competent authorities of the countries of origin and destination should be immediately informed and advice on the action to be taken obtained from them.

      Section 11 Stowage factor convention tables

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      Appendix A List of bulk materials which may liquefy

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      1 General

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      A.1.1 This appendix lists materials which may liquefy if shipped at a moisture content in excess of their transportable moisture limit.

      A.1.2 It should be carefully noted that this list of materials is not exhaustive and that there are no physical or chemical properties attributed to them. Consequently, whenever the shipment of a bulk cargo is contemplated, it is essential to obtain currently valid information about its physical properties prior to loading.

      2 Mineral concentrates

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      A.2.1 Varying terminology exists to describe mineral concentrates. All known terms are listed below but the list is not exhaustive.

      A.2.2 The stowage factor of these materials is generally low: from 0.33m3/t to 0.57m3/t.

      BLENDE (zinc sulphide) LEAD SULPHIDE (galena)
      CHALCOPYRITE MAGNETITE
      COPPER NICKEL MAGNETITE-TACONITE
      COPPER ORE CONCENTRATE MANGANIC CONCENTRATE
      COPPER PRECIPITATES (manganese)
      GALENA (lead sulphide) NEFELINE SYENITE (mineral)
      ILMENITE ("dry" and "moist") NICKEL ORE CONCENTRATE
      IRON ORE CONCENTRATE PENTAHYDRATE CRUDE
      IRON ORE (magnetite) PYRITE
      IRON ORE (pellet feed) PYRITES (cupreous)
      IRON ORE (sinter feed)PYRITES (fine)
      IRON PYRITESPYRITES (flotation)
      LEAD AND ZINC CALCINES (mixed) PYRITES (sulphur)
      LEAD AND ZINC MIDDLINGS PYRITIC ASHES (iron)
      LEAD ORE CONCENTRATEPYRITIC CINDERS
      LEAD ORE RESIDUE SILVER LEAD ORE CONCENTRATE
      LEAD SILVER ORE SLIG (iron ore)
      LEAD SULPHIDE ZINC AND LEAD CALCINES
      ZINC AND LEAD MIDDLINGS ZINC SINTER
      ZINC ORE CONCENTRATE ZINC SLUDGE
      ZINC ORE (burnt ore) ZINC SULPHIDE
      ZINC ORE (calamine) ZINC SULPHIDE (blende)
      ZINC ORE (crude)

      A.2.3 When loading the above materials, reference should also be made to the entry "METAL SULPHIDE CONCENTRATES" in appendix B.

      3 Other materials


      A.3.1 Many fine-particled materials, if possessing a sufficiently high moisture content, are liable to flow. Thus any damp or wet cargo containing a proportion of fine particles should be tested for flow characteristics prior to loading.

      A.3.2 Fish in bulk can act as a cargo which may liquify and when proposed for carriage in bulk in a cargo ship, the competent authority should be consulted. The Code of Safety for Fishermen, Part B, provides useful information on this subject.

      A3.3 Peat moss in bulk, due to the natural high water content, can act as a cargo which may liquefy as well as cause excess hydrostatic pressure on cargo hold bulkheads. Peat moss with a moisture content of more 65% by weight should only be carried on a specially fitted or constructed cargo ships (see 7.2.2 to 7.2.4).

      A.3.4 The list below contains materials (other than the mineral concentrates listed in paragraph A2.2) that have been reported as capable of attaining a flow state and is not exhaustive.
      Material Approximate stowage factor
      (m/t)

      CALCINED PYRITES (See also appendix B) 0.43
      COAL (fine-particled) (See also appendix B)
      COAL SLURRY
      (watery silt, material normally under 1 mm in size)
      0.98 to 1.15
      COKE BREEZE (See also appendix C)
      FISH
      1.8

      Appendix B List of bulk materials possessing chemicals hazards


      1 This appendix lists materials which were known at the time of publication to be carried in bulk and which possess a chemical hazard which could give rise to a dangerous situation on board ship.

      2 It should be carefully noted that this list of products is not exhaustive and that the physical and chemical properties attributed to them are for guidance only. Consequently, whenever the shipment of such bulk materials is contemplated, it is essential to obtain currently valid information about its physical and chemical properties prior to loading.

      3 In circumstances where consultation with the competent authority is required prior to bulk shipment of materials, it is equally important to consult authorities at the ports of loading and discharge concerning requirements which may be in force.

      4 Where required, the "Medical First Aid Guide for Use in Accidents Involving Dangerous Goods" (MFAG) should be consulted prior to loading.

      5 The following materials are non-cohesive when dry:
                AMMONIUM NITRATE
                AMMONIUM NITRATE FERTILIZERS TYPE A AND B
                CASTOR BEANS
                POTASSIUM NITRATE
                SODIUM NITRATE
                SODIUM NITRATE AND POTASSIUM NITRATE, MIXTURE
      Prior to completion of loading, the angle of repose of the materials to be loaded should be determined (see section 6) so as to determine which provisions of the Code relating to trimming apply (see section 5).

      6 All other materials listed in this appendix are cohesive and use of angle of repose is, therefore, not appropriate. Materials not listed should be treated as cohesive until otherwise shown.

      Ingangsdatum: 15-11-1979
      Geldig tot en met: 02-12-2004

      1 This appendix lists materials which were known at the time of publication to be carried in bulk and which possess a chemical hazard which could give rise to a dangerous situation on board ship.

      2 It should be carefully noted that this list of products is not exhaustive and that the physical and chemical properties attributed to them are for guidance only. Consequently, whenever the shipment of such bulk materials is contemplated, it is essential to obtain currently valid information about its physical and chemical properties prior to loading.

      3 In circumstances where consultation with the competent authority is required prior to bulk shipment of materials, it is equally important to consult authorities at the ports of loading and discharge concerning requirements which may be in force.

      4 Where required, the "Medical First Aid Guide for Use in Accidents Involving Dangerous Goods" (MFAG) should be consulted prior to loading.

      5 The following materials are non-cohesive when dry:
                AMMONIUM NITRATE
                AMMONIUM NITRATE FERTILIZERS TYPE A AND B
                CASTOR BEANS
                POTASSIUM NITRATE
                SODIUM NITRATE
                SODIUM NITRATE AND POTASSIUM NITRATE, MIXTURE
      Prior to completion of loading, the angle of repose of the materials to be loaded should be determined (see section 6) so as to determine which provisions of the Code relating to trimming apply (see section 5).

      6 All other materials listed in this appendix are cohesive and use of angle of repose is, therefore, not appropriate. Materials not listed should be treated as cohesive until otherwise shown.

      01 ALUMINIUM PROCESSING BY-PRODUCTS *

      Ingangsdatum: 15-11-1979
      Geldig tot en met: 02-12-2004

      UN no.IMO classMFAG table no.Approximate stowage
      factor(m3/t)
      EmS no.
      31704.3725**0.82B1

      Aluminium processing by-products are wastes from the aluminium manufacturing process. The term encompasses various different waste materials which include but are not limited to:
        Aluminium Ashes
        Aluminium Dross
        Aluminium Potlining
        Aluminium Residues
        Aluminium Saltslag
        Aluminium Skimmings
        Pot Skimmings
        Spent Cathodes
        Spent Potliner
        Waste Cathodes
        Properties
        Grey or black powder or lumps with some metallic inclusions. Contact with water may cause heating with possible evolution of flammable and toxic gases such as hydrogen, ammonia and acetylene.

        Observations
        Hot or wet material should not be loaded. Prior to loading, a certificate should be provided by the manufacturer or shipper stating that the material was stored under cover, but exposed to the weather in the particle size in which it is to be shipped, for not less than three days prior to shipment.

        Segregation and stowage requirements
        Segregation as required for class 4.3 materials.
        "Separated from" foodstuffs.
        "Separated from" all class 8 liquids.

        Special requirements
        The cargo spaces should be ventilated by at least two separate fans which should be either explosion-proof or arranged so that the escaping gas flow is separated from electrical cables and components. The total ventilation should be at least six air changes per hour, based on the empty space. Ventilation should be such that any escaping gases cannot reach living quarters on or under the deck.

        Bulkheads to the engine-room should be gastight. Inadvertent pumping through machinery spaces should be avoided.

        At least two self-contained breathing apparatuses additional to those required by regulation II-2/17 of the 1974 SOLAS Convention, as amended, should be provided.

        At least two suitable explosimeters capable of detecting flammable gases should be on board. The measurements should be recorded and the information kept on board.

        The cargo should be protected from precipitation during handling operations and be kept as dry as reasonably practicable.

        Whilst the ship is alongside and cargo hatches to holds containing aluminium processing by-products are closed, the mechanical ventilation is to be operated continuously.

        During loading, "NO SMOKING" signs are to be posted on decks and in areas adjacent to cargo compartments.


        * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.
        ** Refer to paragraph 6.1.1 (Asphyxia) of the MFAG.

        02 ALUMINIUM FERROSILICON, powder * (including briquettes)

        Ingangsdatum: 15-11-1979
        Geldig tot en met: 02-12-2004

        UN no.IMO classMFAG table no.Approximate stowage
        factor(m3/t)
        EmS no.
        13954.3601,605
        B2

        Properties
        In contact with water may evolve hydrogen, a flammable gas which may form explosive mixtures with air. Impurities may, under similar circumstances, produce phosphine and arsine, which are highly toxic gases.

        Observations
        Prior to loading, a certificate should be provided by the manufacturer or shipper stating that, after manufacture, the material was stored under cover, but exposed to the weather in the particle size in which it is to be shipped, for not less than three days prior to shipment.

        Segregation and stowage requirements
        "Separated from" foodstuffs and all class 8 liquids. Only to be loaded under dry weather conditions. Keep as dry as reasonably practicable. To be stowed in a mechanically ventilated space.

        Special requirements
        The cargo spaces should be ventilated by at least two separate fans. The total ventilation should be at least six air changes per hour, based on the empty space. Ventilation should be such that any escaping gases cannot reach living quarters on or under the deck. Bulkheads to the engine-room should be gastight and should be inspected and approved by the competent authority. At least two self-contained breathing apparatuses additional to those required by regulation II-2/17 of the 1974 SOLAS Convention, as amended, should be provided. At least two suitable detectors for quantitative measurements of phosphine and arsine should be on board. The measurements should be recorded and the information kept on board.


        * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

        03 ALUMINIUM NITRATE *

        Ingangsdatum: 15-11-1979
        Geldig tot en met: 02-12-2004

        UN no.IMO classMFAG table no.Approximate stowage
        factor(m3/t)
        EmS no.
        14385.1235
        135

        Properties
        If involved in a fire will greatly intensify the burning of combustible materials and will yield toxic nitrous fumes.
        Although non-combustible, mixtures with combustible material are easily ignited and may burn fiercely.

        Segregation and stowage requirements
        "Separated from" foodstuffs.


        * For comprehensive information on transport of any material listed, refer to sections 1-10 of this Code.

        04 ALUMINIUM SILICON powder, UNCOATED *

        Ingangsdatum: 15-11-1979
        Geldig tot en met: 02-12-2004

        UN no.IMO classMFAG table no.Approximate stowage
        factor(m3/t)
        EmS no.
        13984.3601,605
        B2

        Properties
        In contact with water may evolve hydrogen, a flammable gas which may form explosive mixtures with air. Impurities may, under similar circumstances, produce phosphine and arsine, which are highly toxic gases. May also evolve silanes, which are toxic and may ignite spontaneously.

        Observations
        Prior to loading, a certificate should be provided by the manufacturer or shipper stating that, after manufacture, the material was stored under cover, but exposed to the weather in the particle size in which it is to be shipped, for not less than three days prior to shipment.

        Segregation and stowage requirements
        "Separated from" foodstuffs and all class 8 liquids.
        Only to be loaded under dry weather conditions.
        Keep as dry as reasonably practicable.
        To be stowed in a mechanically ventilated space.

        Special requirements
        The cargo spaces should be ventilated by at least two separate fans. The total ventilation should be at least six air changes per hour, based on the empty space. Ventilation should be such that any escaping gases cannot reach living quarters on or under the deck. Bulkheads to the engine-room should be gastight and should be inspected and approved by the competent authority. At least two self-contained breathing apparatuses additional to those required by regulation II-2/17 of the 1974 SOLAS Convention, as amended, should be provided.
        At least two suitable detectors for quantitative measurements of phosphine, arsine and silane should be on board. The measurements should be recorded and the information kept on board.


        * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

        05 AMMONIUM NITRATE *


        with not more than 0.2% combustible substances including any organic substance calculated as carbon, to the exclusion of any other added substance

        UN no.IMO classMFAG table no.Approximate angel
        of response
        Approximate stowage
        factor(m3/t)
        EmS no.
        19425.161027° to 42°1.00B2

        Properties
        Crystals, granules or prills. Wholly or partly soluble in water. Supporters of combustion. A major fire aboard a ship carrying these materials may involve a risk of explosion in the event of contamination (e.g. by fuel oil) or strong confinement. An adjacent detonation may also involve a risk of explosion. If heated strongly, they decompose, giving off toxic gases and gases which support combustion.

        Observations
        Ammonium nitrate should only be transported in bulk when the requirements of appendix D.5, or equivalent tests satisfactory to the competent authority of the country of origin, have been met. Prior to loading, a certificate signed by the shipper should be presented to the ship's master stating that these requirements have been met. The possible need to apply water in an emergency and the consequent risk to the stability of the ship through fluidization of the material should be considered before loading.

        Segregation and stowage requirements
        To be carried in bulk only with special permission from the competent authority. "Separated by a complete compartment or hold from" combustible materials (particularly liquids), chlorates, chlorides, chlorites, hypochlorites, nitrites, permanganates and fibrous materials (e.g. cotton, jute, sisal, etc.). "Separated from" all other goods. For stowage requirements, see "Special requirements"

        Special requirements
        1 Adequate supplies of water for fire-fighting purposes should be immediately available from the fire main whenever this material is on board. In case this cannot be supplied by the ship's pumps it should be increased to the required amount by means of portable pumps.

        2 If the bulkhead between the cargo space and the engine-room is not insulated to class "A-60" standard, an equivalent arrangement should be approved by the competent authority.

        3 No welding, burning, cutting or other operations involving the use of fire, open flame, spark- or arc-producing equipment should be carried out in the vicinity of the cargo space except in an emergency.

        4 Prior to loading the following measures should be taken:
        .1 the requirements in 9.3.2.2 are particularly applicable to this material;
        .2 the temperature of the material should not be above 40 °C;
        .3 the fuel tanks situated under the cargo spaces to be used for the transport of this material should be pressure tested to ascertain that there is no leakage of manholes and piping systems leading through the spaces; and
        .4 any electrical circuits terminating in the spaces to be used for this material should be electrically disconnected from the power source at a point external to the space. This situation should be maintained as long as the material is on board.

        5 During loading and discharging the following measures should be taken:
        .1 smoking should not be allowed on deck and in the cargo spaces. "NO SMOKING" signs should be displayed. These precautions should be observed as long as the material is on board;
        .2 bunkering or pumping of fuel should not be allowed; and
        .3 fire hoses should be laid out or be in position and ready for immediate use.


        * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

        Ingangsdatum: 01-06-2000
        Geldig tot en met: 02-12-2004

        with not more than 0.2% combustible substances including any organic substance calculated as carbon, to the exclusion of any other added substance

        UN no.IMO classMFAG table no.Approximate angel
        of response
        Approximate stowage
        factor(m3/t)
        EmS no.
        19425.161027° to 42°1.00B2

        Properties
        Crystals, granules or prills. Wholly or partly soluble in water. Supporters of combustion. A major fire aboard a ship carrying these materials may involve a risk of explosion in the event of contamination (e.g. by fuel oil) or strong confinement. An adjacent detonation may also involve a risk of explosion. If heated strongly, they decompose, giving off toxic gases and gases which support combustion.

        Observations
        Ammonium nitrate should only be transported in bulk when the requirements of appendix D.5, or equivalent tests satisfactory to the competent authority of the country of origin, have been met. Prior to loading, a certificate signed by the shipper should be presented to the ship's master stating that these requirements have been met. The possible need to apply water in an emergency and the consequent risk to the stability of the ship through fluidization of the material should be considered before loading.

        Segregation and stowage requirements
        To be carried in bulk only with special permission from the competent authority. "Separated by a complete compartment or hold from" combustible materials (particularly liquids), chlorates, chlorides, chlorites, hypochlorites, nitrites, permanganates and fibrous materials (e.g. cotton, jute, sisal, etc.). "Separated from" all other goods. For stowage requirements, see "Special requirements"

        Special requirements
        1 Adequate supplies of water for fire-fighting purposes should be immediately available from the fire main whenever this material is on board. In case this cannot be supplied by the ship's pumps it should be increased to the required amount by means of portable pumps.

        2 If the bulkhead between the cargo space and the engine-room is not insulated to class "A-60" standard, an equivalent arrangement should be approved by the competent authority.

        3 No welding, burning, cutting or other operations involving the use of fire, open flame, spark- or arc-producing equipment should be carried out in the vicinity of the cargo space except in an emergency.

        4 The hatches of the holds should be kept free to be capable of being opened in case of an emergency.

        5 Prior to loading the following measures should be taken:
        .1 the requirements in 9.3.2.2 are particularly applicable to this material;
        .2 the temperature of the material should not be above 40 °C;
        .3 the fuel tanks situated under the cargo spaces to be used for the transport of this material should be pressure tested to ascertain that there is no leakage of manholes and piping systems leading through the spaces; and
        .4 any electrical circuits terminating in the spaces to be used for this material should be electrically disconnected from the power source at a point external to the space. This situation should be maintained as long as the material is on board.

        6 During loading and discharging the following measures should be taken:
        .1 smoking should not be allowed on deck and in the cargo spaces. "NO SMOKING" signs should be displayed. These precautions should be observed as long as the material is on board;
        .2 bunkering or pumping of fuel should not be allowed; and
        .3 fire hoses should be laid out or be in position and ready for immediate use.


        * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

        06 AMMONIUM NITRATE FERTILIZERS * , TYPE A


        (A1) Uniform non-segregating mixtures of ammonium nitrate with added matter which is inorganic and chemically inert towards ammonium nitrate, containing not less than 90% of ammonium nitrate and not more than 0.2% of combustible material (including organic material calculated as carbon), or containing less than 90% but more than 70% of ammonium nitrate and not more than 0.4% of total combustible material.

        Note: All nitrate ions for which there is present in the mixture a molecular equivalent of ammonium ions should be calculated as ammonium nitrate.

        UN no.IMO classMFAG table no.Approximate angel
        of response
        Approximate stowage
        factor(m3/t)
        EmS no.
        20675.161027° to 42°1.00B4

        Properties
        Crystals, granules or prills. Wholly or partly soluble in water. Supporters of combustion. A major fire aboard a ship carrying these materials may involve a risk of explosion in the event of contamination (e.g. by fuel oil) or strong confinement. An adjacent detonation may also involve a risk of explosion. If heated strongly, they decompose, giving off toxic gases and gases which support combustion.

        Observations
        Ammonium nitrate fertilizers type A should only be transported in bulk when the requirements of appendix D.5, or equivalent tests satisfactory to the competent authority of the country of origin, have been met. Prior to loading, a certificate signed by the shipper should be presented to the ship's master stating that these requirements have been met. The possible need to apply water in an emergency and the consequent risk to the stability of the ship through fluidization of the material should be considered before loading.

        Note: Ammonium nitrate products which are liable to self-heating sufficient to initiate a decomposition are prohibited.

        Segregation and stowage requirements
        "Separated by a complete compartment or hold from" combustible materials (particularly liquids), chlorates, chlorides, chlorites, hypochlorites, nitrites, per manganates and fibrous materials (e.g. cotton, jute, sisal, etc.). "Separated from" all other goods. For stowage requirements, see "Special requirements".

        Special requirements
        1 Adequate supplies of water for fire-fighting purposes should be immediately available from the fire main whenever this material is on board. In case this cannot be supplied by the ship's pumps it should be increased to the required amount by means of portable pumps.

        2 If the bulkhead between the cargo space and the engine-room is not insulated to class "A-60" standard, an equivalent arrangement should be approved by the competent authority.

        3 No welding, burning, cutting or other operations involving the use of fire, open flame, spark- or arc-producing equipment should be carried out in the vicinity of the cargo space except in an emergency.

        4 "Prior to loading" the following measures should be taken:
        .1 the requirements in 9.3.2.2 are particularly applicable to this material;
        .2 the temperature of the material should not be above 40°C;
        .3 the fuel tanks situated under the cargo spaces to be used for the transport of this material should be pressure tested to ascertain that there is no leakage of manholes and piping systems leading through the spaces; and
        .4 any electrical circuits terminating in the spaces to be used for this material should be electrically disconnected from the power source at a point external to the space. This situation should be maintained as long as the material is on board.

        5 "During loading and discharging" the following measures should be taken:
        .1 smoking should not be allowed on deck and in the cargo spaces. "NO SMOKING" signs should be displayed. These precautions should be observed as long as the material is on board;
        .2 bunkering or pumping of fuel should not be allowed; and
        .3 fire hoses should be laid out or be in position and ready for immediate use.


        AMMONIUM NITRATE FERTILIZERS*
        TYPE A (continued)

        (A2) Uniform non-segregating mixtures of ammonium nitrate with calcium carbonate and/or dolomite, containing more than 80% but less than 90% of ammonium nitrate and not more than 0.4% of total combustible material. (For mixtures containing less than 80% of ammonium nitrate, see appendix C - ammonium nitrate fertilizers under (a).)

        Note: All nitrate ions for which there is present in the mixture a molecular equivalent of ammonium ions should be calculated as ammonium nitrate.

        UN no.IMO classMFAG table no.Approximate angel
        of response
        Approximate stowage
        factor(m3/t)
        EmS no.
        20685.161027° to 42°1.00B4


        Properties
        Same as (A1).

        Observations
        Same as (A1).

        Segregation and stowage requirements
        Same as (A1)

        Special requirements
        Same as (A1).


        AMMONIUM NITRATE FERTILIZERS*
        TYPE A (continued)

        (A3) Uniform non-segregating mixtures of ammonium nitrate/ammonium sulphate containing more than 45% but not more than 70% of ammonium nitrate and containing not more than 0.4% of total combustible material. (For mixtures containing less than 45% of ammonium nitrate, see appendix C - ammonium nitrate fertilizers under (b).)

        Note: All nitrate ions for which there is present in the mixture a molecular equivalent of ammonium ions should be calculated as ammonium nitrate.

        UN no.IMO classMFAG table no.Approximate angel
        of response
        Approximate stowage
        factor(m3/t)
        EmS no.
        20695.161027° to 42°1.00B4


        Properties
        Same as (A1).

        Observations
        Same as (A1).

        Segregation and stowage requirements
        Same as (A1).

        Special requirements
        Same as (A1).


        AMMONIUM NITRATE FERTILIZERS*
        TYPE A (continued)

        (A4) Uniform non-segregating mixtures of nitrogen/phosphate or nitrogen/pot-ash type or complete fertilizers of nitrogen/phosphate/potash type, containing more than 70% but less than 90% of ammonium nitrate and not more than 0.4% of total combustible material. (For mixtures containing less than 70% of ammonium nitrate, see ammonium nitrate fertilizers, type B.) Note: All nitrate ions for which there is present in the mixture a molecular equivalent of ammonium ions should be calculated as ammonium nitrate.

        UN no.IMO classMFAG table no.Approximate angel
        of response
        Approximate stowage
        factor(m3/t)
        EmS no.
        20705.161027° to 42°1.00B4


        Properties
        Same as (A1).

        Observations
        Same as (A1).

        Segregation and stowage requirements
        Same as (A1).

        Special requirements
        Same as (A1).


        * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

        Ingangsdatum: 01-06-2000
        Geldig tot en met: 02-12-2004

        (A1) Uniform non-segregating mixtures of ammonium nitrate with added matter which is inorganic and chemically inert towards ammonium nitrate, containing not less than 90% of ammonium nitrate and not more than 0.2% of combustible material (including organic material calculated as carbon), or containing less than 90% but more than 70% of ammonium nitrate and not more than 0.4% of total combustible material.

        Note: All nitrate ions for which there is present in the mixture a molecular equivalent of ammonium ions should be calculated as ammonium nitrate.

        UN no.IMO classMFAG table no.Approximate angel
        of response
        Approximate stowage
        factor(m3/t)
        EmS no.
        20675.161027° to 42°1.00B4

        Properties
        Crystals, granules or prills. Wholly or partly soluble in water. Supporters of combustion. A major fire aboard a ship carrying these materials may involve a risk of explosion in the event of contamination (e.g. by fuel oil) or strong confinement. An adjacent detonation may also involve a risk of explosion. If heated strongly, they decompose, giving off toxic gases and gases which support combustion.

        Observations
        Ammonium nitrate fertilizers type A should only be transported in bulk when the requirements of appendix D.5, or equivalent tests satisfactory to the competent authority of the country of origin, have been met. Prior to loading, a certificate signed by the shipper should be presented to the ship's master stating that these requirements have been met. The possible need to apply water in an emergency and the consequent risk to the stability of the ship through fluidization of the material should be considered before loading.

        Note: Ammonium nitrate products which are liable to self-heating sufficient to initiate a decomposition are prohibited.

        Segregation and stowage requirements
        "Separated by a complete compartment or hold from" combustible materials (particularly liquids), chlorates, chlorides, chlorites, hypochlorites, nitrites, per manganates and fibrous materials (e.g. cotton, jute, sisal, etc.). "Separated from" all other goods. For stowage requirements, see "Special requirements".

        Special requirements
        1 Adequate supplies of water for fire-fighting purposes should be immediately available from the fire main whenever this material is on board. In case this cannot be supplied by the ship's pumps it should be increased to the required amount by means of portable pumps.

        2 If the bulkhead between the cargo space and the engine-room is not insulated to class "A-60" standard, an equivalent arrangement should be approved by the competent authority.

        3 No welding, burning, cutting or other operations involving the use of fire, open flame, spark- or arc-producing equipment should be carried out in the vicinity of the cargo space except in an emergency.

        4 The hatches of the holds should be kept free to be capable of being opened in case of an emergency.

        5 "Prior to loading" the following measures should be taken:
        .1 the requirements in 9.3.2.2 are particularly applicable to this material;
        .2 the temperature of the material should not be above 40°C;
        .3 the fuel tanks situated under the cargo spaces to be used for the transport of this material should be pressure tested to ascertain that there is no leakage of manholes and piping systems leading through the spaces; and
        .4 any electrical circuits terminating in the spaces to be used for this material should be electrically disconnected from the power source at a point external to the space. This situation should be maintained as long as the material is on board.

        6 "During loading and discharging" the following measures should be taken:
        .1 smoking should not be allowed on deck and in the cargo spaces. "NO SMOKING" signs should be displayed. These precautions should be observed as long as the material is on board;
        .2 bunkering or pumping of fuel should not be allowed; and
        .3 fire hoses should be laid out or be in position and ready for immediate use.


        AMMONIUM NITRATE FERTILIZERS*
        TYPE A (continued)

        (A2) Uniform non-segregating mixtures of ammonium nitrate with calcium carbonate and/or dolomite, containing more than 80% but less than 90% of ammonium nitrate and not more than 0.4% of total combustible material. (For mixtures containing less than 80% of ammonium nitrate, see appendix C - ammonium nitrate fertilizers under (a).)

        Note: All nitrate ions for which there is present in the mixture a molecular equivalent of ammonium ions should be calculated as ammonium nitrate.

        UN no.IMO classMFAG table no.Approximate angel
        of response
        Approximate stowage
        factor(m3/t)
        EmS no.
        20685.161027° to 42°1.00B4


        Properties
        Same as (A1).

        Observations
        Same as (A1).

        Segregation and stowage requirements
        Same as (A1)

        Special requirements
        Same as (A1).


        AMMONIUM NITRATE FERTILIZERS*
        TYPE A (continued)

        (A3) Uniform non-segregating mixtures of ammonium nitrate/ammonium sulphate containing more than 45% but not more than 70% of ammonium nitrate and containing not more than 0.4% of total combustible material. (For mixtures containing less than 45% of ammonium nitrate, see appendix C - ammonium nitrate fertilizers under (b).)

        Note: All nitrate ions for which there is present in the mixture a molecular equivalent of ammonium ions should be calculated as ammonium nitrate.

        UN no.IMO classMFAG table no.Approximate angel
        of response
        Approximate stowage
        factor(m3/t)
        EmS no.
        20695.161027° to 42°1.00B4


        Properties
        Same as (A1).

        Observations
        Same as (A1).

        Segregation and stowage requirements
        Same as (A1).

        Special requirements
        Same as (A1).


        AMMONIUM NITRATE FERTILIZERS*
        TYPE A (continued)

        (A4) Uniform non-segregating mixtures of nitrogen/phosphate or nitrogen/pot-ash type or complete fertilizers of nitrogen/phosphate/potash type, containing more than 70% but less than 90% of ammonium nitrate and not more than 0.4% of total combustible material. (For mixtures containing less than 70% of ammonium nitrate, see ammonium nitrate fertilizers, type B.) Note: All nitrate ions for which there is present in the mixture a molecular equivalent of ammonium ions should be calculated as ammonium nitrate.

        UN no.IMO classMFAG table no.Approximate angel
        of response
        Approximate stowage
        factor(m3/t)
        EmS no.
        20705.161027° to 42°1.00B4


        Properties
        Same as (A1).

        Observations
        Same as (A1).

        Segregation and stowage requirements
        Same as (A1).

        Special requirements
        Same as (A1).


        * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

        07 AMMONIUM NITRATE FERTILIZERS * , TYPE B


        Uniform non-segregating mixtures of nitrogen/phosphate or nitrogen/potash types or complete fertilizers of nitrogen/phosphate/potash type, containing not more than 70% of ammonium nitrate and not more than 0.4% of total added combustible material or containing not more than 45% of ammonium nitrate with unrestricted combustible material.

        Notes:
        1. All nitrate ions for which there is present in the mixture a molecular equivalent of ammonium ions should be calculated as ammonium nitrate.
        2. NON-HAZARDOUS: Mixtures of the same composition and within the limits mentioned above which, as a result of testing in the trough test (see appendix D.4), are found to be free from the risk of self-sustaining decomposition, provided they do not contain an excess of nitrate calculated as potassium nitrate (above the ammonium nitrate content calculated as in note (1) above) greater than 10% by mass of the mixture. Mixtures in which excess nitrate is present in greater proportion than this should be referred to the competent authority (see appendix C - ammonium nitrate fertilizers under (c)).

        UN no.IMO classMFAG table no.Approximate angel
        of response
        Approximate stowage
        factor(m3/t)
        EmS no.
        2071961027° to 42°1.00B4

        Properties
        Usually granules. Wholly or partly soluble in water. These mixtures may be subject to self-sustaining decomposition if heated; the temperature in such a reaction can reach 500°C. Decomposition, once initiated, may spread throughout the remainder, producing gases which are toxic.

        Observations
        These fertilizers are accepted for bulk transport if, as a result of testing in the trough test, their liability to self- sustaining decomposition shows a decomposition rate not greater than 0.25 m/h. Ammonium nitrate products which are liable to self-heating sufficient to initiate a decomposition are prohibited.

        Segregation and stowage requirements
        Segregation as required for class 5.1 materials. "Separated by a complete compartment or hold from" combustible materials (particularly liquids), chlorates, hypochlorites, nitrites and permanganates. Clear of all sources of heat, including insulated piping. The compatibility of non-hazardous ammonium nitrate mixtures with other materials which may be stowed in the same cargo space should be considered before loading. The possible need to apply water in an emergency and the consequent risk to the stability of the ship through fluidization of the material should be considered before loading. The residue left after decomposition may have only half the weight of the original material. This loss of weight may also affect the stability of the ship and should be considered before loading.

        Special requirements
        1 Away from all sources of heat, viz.:
        .1 electric lamps, cables, or other electrical equipment (cables leading into the cargo space should be disconnected wherever possible); and
        .2 any tank or double bottom containing fuel oil immediately adjacent to the cargo space if heated to more than 50°C.

        2 Fertilizers of this type should be stowed out of direct contact with a metal engine-room boundary. This may be done, for example, by using flame-retardant bags containing inert materials or by any equivalent barrier approved by the competent authority. This requirement need not apply to coastal voyages. In the case of ships not fitted with smoke-detecting or other suitable detecting devices, arrangements should be made during the voyage to inspect cargo spaces containing type B mixtures at intervals not exceeding four hours (e.g. to sniff at the ventilators serving them) to ensure early detection of decomposition, should that occur.

        3 No welding, burning, cutting or other operations involving the use of fire, open flame, spark- or arc-producing equipment should be carried out in the vicinity of the cargo space except in an emergency.

        4 "During loading and discharging" the following measures should be taken:
        .1 smoking should not be allowed on deck and in the cargo spaces. "NO SMOKING" signs should be displayed. These precautions should be observed as long as the material is on board; and
        .2 bunkering or pumping of fuel should not be allowed during cargo handling.


        * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

        Ingangsdatum: 01-06-2000
        Geldig tot en met: 02-12-2004

        Uniform non-segregating mixtures of nitrogen/phosphate or nitrogen/potash types or complete fertilizers of nitrogen/phosphate/potash type, containing not more than 70% of ammonium nitrate and not more than 0.4% of total added combustible material or containing not more than 45% of ammonium nitrate with unrestricted combustible material.

        Notes:
        1. All nitrate ions for which there is present in the mixture a molecular equivalent of ammonium ions should be calculated as ammonium nitrate.
        2. NON-HAZARDOUS: Mixtures of the same composition and within the limits mentioned above which, as a result of testing in the trough test (see appendix D.4), are found to be free from the risk of self-sustaining decomposition, provided they do not contain an excess of nitrate calculated as potassium nitrate (above the ammonium nitrate content calculated as in note (1) above) greater than 10% by mass of the mixture. Mixtures in which excess nitrate is present in greater proportion than this should be referred to the competent authority (see appendix C - ammonium nitrate fertilizers under (c)).

        UN no.IMO classMFAG table no.Approximate angel
        of response
        Approximate stowage
        factor(m3/t)
        EmS no.
        2071961027° to 42°1.00B4

        Properties
        Usually granules. Wholly or partly soluble in water. These mixtures may be subject to self-sustaining decomposition if heated; the temperature in such a reaction can reach 500°C. Decomposition, once initiated, may spread throughout the remainder, producing gases which are toxic.

        Observations
        These fertilizers are accepted for bulk transport if, as a result of testing in the trough test, their liability to self- sustaining decomposition shows a decomposition rate not greater than 0.25 m/h. Ammonium nitrate products which are liable to self-heating sufficient to initiate a decomposition are prohibited.

        Segregation and stowage requirements
        Segregation as required for class 5.1 materials. "Separated by a complete compartment or hold from" combustible materials (particularly liquids), chlorates, hypochlorites, nitrites and permanganates. Clear of all sources of heat, including insulated piping. The compatibility of non-hazardous ammonium nitrate mixtures with other materials which may be stowed in the same cargo space should be considered before loading. The possible need to apply water in an emergency and the consequent risk to the stability of the ship through fluidization of the material should be considered before loading. The residue left after decomposition may have only half the weight of the original material. This loss of weight may also affect the stability of the ship and should be considered before loading.

        Special requirements
        1 Away from all sources of heat, viz.:
        .1 electric lamps, cables, or other electrical equipment (cables leading into the cargo space should be disconnected wherever possible); and
        .2 any tank or double bottom containing fuel oil immediately adjacent to the cargo space if heated to more than 50°C.

        2 Fertilizers of this type should be stowed out of direct contact with a metal engine-room boundary. This may be done, for example, by using flame-retardant bags containing inert materials or by any equivalent barrier approved by the competent authority. This requirement need not apply to coastal voyages. In the case of ships not fitted with smoke-detecting or other suitable detecting devices, arrangements should be made during the voyage to inspect cargo spaces containing type B mixtures at intervals not exceeding four hours (e.g. to sniff at the ventilators serving them) to ensure early detection of decomposition, should that occur.

        3 No welding, burning, cutting or other operations involving the use of fire, open flame, spark- or arc-producing equipment should be carried out in the vicinity of the cargo space except in an emergency.

        4 The hatches of the holds should be kept free to be capable of being opened in case of an emergency.

        5 "During loading and discharging" the following measures should be taken:
        .1 smoking should not be allowed on deck and in the cargo spaces. "NO SMOKING" signs should be displayed. These precautions should be observed as long as the material is on board; and
        .2 bunkering or pumping of fuel should not be allowed during cargo handling.


        * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

        08 BARIUM NITRATE *

        Ingangsdatum: 15-11-1979
        Geldig tot en met: 02-12-2004

        UN no.IMO classMFAG table no.Approximate stowage
        factor(m3/t)
        EmS no.
        14665.1120
        B5

        Properties
        Toxic if swallowed or by dust inhalation. If involved in a fire will greatly intensify the burning of combustible materials and will yield toxic nitrous fumes. Although non-combustible, mixtures with combustible material are easily ignited and may burn fiercely.

        Segregation and stowage requirements
        "Separated from" foodstuffs.


        * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

        09 BROWN COAL (LIGNITE) BRIQUETTES

        Ingangsdatum: 04-06-1999
        Geldig tot en met: 02-12-2004



        1 Brown coal (lignite) briquettes are manufactured by pressing dried coal particles into compressed blocks.

        2 Briquettes are subject to oxidation, leading to depletion of oxygen and an increase in carbon dioxide in the cargo space (see also section 3 and Appendix F).

        3 Brown coal briquettes are liable to self-heating that can lead to spontaneous combustion in the cargo space. If this occurs, flammable and toxic gases, including carbon monoxide, may be produced. Carbon monoxide is an odourless gas, slightly lighter than air, and has flammable limits in air of 12% to 75% by volume. It is toxic by inhalation, with an affinity for blood haemoglobin over 200 times that of oxygen.

        4 Brown coal briquettes do not emit methane under normal stowage conditions.

        Segregation and stowage requirements

        1 Boundaries of cargo spaces where briquettes are carried should be resistant to fire and liquids.

        2 Briquettes should be ’separated from’ goods of classes 1 (division 1.4), 2, 3, 4, and 5 in packaged form (see IMDG Code) and ’separated from’ solid bulk materials of classes 4 and 5.1.

        3 Stowage of goods of class 5.1 in packaged form or solid bulk materials of class 5.1 above or below a briquette cargo should be prohibited.

        4 Briquettes should be ’separated longitudinally by an intervening complete compartment or hold from’ goods of class 1 other than division 1.4.

        Note: For interpretation of the segregation terms, see section 9, paragraph 9.3.3.

        General requirements

        1 Prior to loading, the shipper, or their appointed agent, should provide in writing to the master, the characteristics of the cargo and the recommended safe handling procedures for loading and transport of the cargo. As a minimum, the cargo’s contract specifications for moisture content, sulphur content and size should be stated.

        2 It is recommended that briquettes be stored for 7 days prior to loading. This substantially reduces the risk of spontaneous combustion in subsequent transport, storage and handling.

        3 Before loading briquettes the master should ensure the following:
          .1 weather deck closures to the cargo space should be inspected to ensure their integrity. Such closures should be closed and sealed before loading is commenced;

          .2 all cargo spaces and bilge wells should be cleaned and dry. Any residue of waste material or previous cargo should be removed, including removable cargo battens, before loading;

          .3 all electrical cables and components situated in cargo spaces and adjacent spaces should be free from defects. Such cables and electrical components should be safe for use in a flammable and/or dusty atmosphere or positively isolated;

          .4 the briquette cargo should not be stowed adjacent to hot areas;

          .5 the ship should be suitably fitted and carry on board appropriate instruments for measuring the following without requiring entry into the cargo space:
            .5.1 concentration of methane in the atmosphere above the cargo;

            .5.2 concentration of oxygen in the atmosphere above the cargo;

            .5.3 concentration of carbon monoxide in the atmosphere above the cargo; and

            .5.4 pH value of cargo hold bilge samples.

            These instruments should be regularly serviced and calibrated. Ship personnel should be trained in the use of such instruments. Details of gas monitoring procedures are given in Appendix G;
            .6 it is recommend that means be provided for monitoring the temperature of the cargo in the range of 0ºC to 100ºC. Such arrangements should enable the temperature of the briquettes cargo to be measured during the voyage without requiring entry into the cargo space; and

            .7 the ship should carry on board the self-contained breathing apparatus required by SOLAS regulation II-2/17. The self-contained breathing apparatus should be worn only by personnel trained in its use (see also section 3 and appendix F). 4 Loading the briquette cargo:
              .1 Smoking and the use of naked flames should not be permitted in the cargo areas and adjacent spaces and appropriate warning notices should be posted in conspicuous places. Burning, cutting, chipping, welding or other sources of ignition should not be permitted in the vicinity of cargo spaces or in other adjacent spaces.

              .2 Briquettes should not be dropped more than one metre during loading to minimise the production of dust and fines.

              .3 Individual cargo spaces should be loaded without interruption where possible. Hot spots can be expected to develop in a hold that has been kept open for more than six days (or less in weather over 30° Celsius).

              .4 Individual cargo spaces should be closed and sealed as soon as possible after each has been loaded. The hatch covers can also be additionally sealed with a suitable sealing tape.

              .5 Prior to departure, the master should be satisfied that the surface of the material has been trimmed reasonably level to the boundaries of the cargo space to avoid the formation of gas pockets and to prevent air from permeating the body of the briquettes. Casings leading into the cargo space should be adequately sealed. The shipper should ensure that the master receives the necessary co-operation from the loading terminal (see also section 5). 5 After loading, sealing the cargo space and during the voyage:
                .1 The master should ensure, as far as possible, that any gases which may be emitted from the cargo do not accumulate in adjacent enclosed spaces, e.g.. store-rooms, carpenter’s shop, passage ways, tunnels, etc. Such spaces should be adequately ventilated and regularly monitored for methane, oxygen and carbon monoxide.

                .2 Under no circumstances should the hatches be opened or the hold ventilated or entered during the voyage.

                .3 The atmosphere in the space above the cargo in each cargo space should be regularly monitored for the presence of methane, oxygen and carbon monoxide.

                .4 The frequency of the monitoring should depend upon the information provided by the shipper and the information obtained through the analysis of the atmosphere in the cargo space. The readings should be recorded at least daily and as close as practical to the same time of day. The shipper may request more frequent readings, particularly if there is evidence of significant self heating during the voyage.

                .5 The oxygen level in the hold will fall from an initial 21% over a period of days to stabilise at levels of the order of 6-15% in a sealed hold. If the oxygen level does not fall below 20%, or rapidly increases after an initial fall, it is possible that the hold is inadequately sealed and is at risk of spontaneous combustion.

                .6 Carbon monoxide levels will build up to concentrations which fluctuate in the 200-2000 parts per million (ppm) range in a safe, well sealed hold. A rapid increase of approximately 1000 ppm in carbon monoxide levels in a brown coal briquette cargo over a 24 hour period is a possible indicator of spontaneous combustion, particularly if accompanied by an increase in methane levels.

                .7 The methane composition in briquette cargoes is normally low, less than 5 ppm and does not constitute a hazard. However, a sudden and continuing rise in methane levels, to concentrations above 10 ppm, is an indicator of the occurrence of spontaneous combustion in the hold.

                .8 The temperature in a brown coal briquette cargo in a well sealed hold normally remains at 5-10ºC above sea water temperature, the increase being due to normal diurnal breathing of small quantities of air into the hold. Checking of the hold seals to minimise air leakage is essential. A rapid increase in temperature of approximately 20ºC over 24 hours is evidence of spontaneous combustion.

                .9 Regular hold bilge testing should be systematically carried out. If the pH monitoring indicates that a corrosion risk exists, the master should ensure that all bilges are kept dry during the voyage in order to avoid possible accumulation of acids on tank tops and in the bilge system.

                .10 If the behaviour of the cargo during the voyage differs from that specified in the cargo declaration, the master should report such differences to the shipper. Such reports will enable the shipper to maintain records on the behaviour of the brown coal briquette cargoes, so that the information being provided to the master can be reviewed in the light of the transport experience. 6 Prior to, and during discharge:
                  .1 Cargo spaces are to be opened immediately prior to the commencement of discharge of that space. The cargo can be sprayed with a fine water spray to reduce dust.

                  .2 Personnel are not to enter the cargo space without having tested the atmosphere above the cargo. If the atmosphere contains oxygen levels below 21%, self-contained breathing apparatus is to be worn. Carbon dioxide and carbon monoxide gas levels should also be tested. The recommended Threshold Limit Value (TLV) for carbon monoxide is 50 ppm.

                  .3 During the discharge, attention should be paid to the cargo for signs of hot spots (i.e. steaming). If a hot spot is detected, the area is to be sprayed with a fine water spray and the hot spot removed immediately to prevent spreading. The hot spot material is to be spread out on the wharf away from the remainder of the cargo.

                  .4 If the discharge is interrupted for more than eight hours, the hatch covers and all other ventilation should be closed. Response to self-heating concern

                  If the ship’s master is concerned that the cargo is showing any signs of self heating or spontaneous combustion, such as an increase in the concentration of methane, carbon monoxide or oxygen or an increase in temperature, as described above, the following actions should be taken:

                  1 The ship’s agent at the loading port, and the person designated under the ISM Code who is responsible for the safety aspects of the ship's operation, should be advised immediately.

                  2 The ship personnel should immediately check if the hatches have been opened or the seals broken. If this is the case, they should immediately be closed and the cargo space resealed.

                  3 Personnel should not enter the cargo space and the hatches should not be opened, unless expressly instructed by the ship’s agent or if the master considers access is critical to the safety of the ship or safety of life. In this situation, the personnel must wear self-contained breathing apparatus and this should be worn only by personnel trained in its use (see also section 3 and Appendix F). The cargo space must be re-sealed immediately after the personnel vacate the cargo space.

                  4 The frequency of monitoring the gas composition and temperature of the cargo should be increased.

                  5 As soon as possible, the following information should be sent to the ship’s owner or agent at the loading port to obtain expert advice:
                    .1 the number of holds involved;

                    .2 monitoring results of the carbon monoxide, methane and oxygen concentrations;

                    .3 if available, temperature of the cargo, location and method used to obtain results;

                    .4 the time the gas analyses were taken (monitoring routine);

                    .5 the quantity of briquettes in the hold(s) involved;

                    .6 the description of the cargo as per the shippers declaration, and any special precautions indicated on the declaration;

                    .7 the date of loading, and ETA at the intended discharge port (which should be specified); and .8 any other comments or observations the ship’s master may consider relevant."

                    10 CALCINED PYRITES (Pyritic ash, Fly ash)*

                    Ingangsdatum: 15-11-1979
                    Geldig tot en met: 02-12-2004
                    (See also appendix A)

                    1-10 of this Code.

                    UN no.IMO classMFAG table no.Approximate stowage
                    factor(m3/t)
                    EmS no.
                    003MHB7700.43B3

                    Properties
                    Solid, finely divided and dusty substance, being the residual product from chemical industry where all types of metal sulphides are either used for the production of sulphuric acid or are processed to recover the elemental metals - copper, lead, zinc, etc. The acidity of the residue can be considerable; in particular, in the presence of water or moist air, where pH values between 1.3 and 2.1 are frequently noted. The residues are, in particular, highly corrosive to steel. Harmful and irritating by dust inhalation.

                    Observations
                    The material should only be loaded in the dry state. Loading should not be permitted during rainy weather.
                    The provisions of this appendix should not apply to types of fly ash being the residual ash from oilor coal-fired power stations (see appendix C).

                    Segregation and stowage requirements
                    "Separated from" foodstuffs.
                    Keep as dry as reasonably practicable.

                    Special requirements
                    Precautions should be taken to avoid penetration of the material into bilges, wells or between the ceiling boards. Removal of the latter is preferable. Spreading of a layer of neutralising agent (e.g. lime) on the tank top before loading the material is recommended. The recommendations given for materials of class 8 with regard to the cleaning of the cargo spaces after unloading should be followed.


                    * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                    11 CALCIUM NITRATE *

                    Ingangsdatum: 15-11-1979
                    Geldig tot en met: 02-12-2004


                    UN no.IMO classMFAG table no.Approximate stowage
                    factor(m3/t)
                    EmS no.
                    14545.1235
                    B5

                    Properties
                    If involved in a fire will greatly intensify the burning of combustible materials and will yield toxic nitrous fumes. Although non-combustible, mixtures with combustible material are easily ignited and may burn fiercely.

                    Observations
                    Harmful if swallowed.
                    The provisions of this Code should not apply to the commercial grades of calcium nitrate fertilizers consisting mainly of a double salt (calcium nitrate and ammonium nitrate) and containing not more than 10% ammonium nitrate and at least 12% water of crystallisation.

                    Segregation and stowage requirements
                    "Separated from" foodstuffs.

                    Special requirements
                    Precautions should be taken to avoid penetration of the material into other cargo spaces, bilges, etc., which may contain combustible materials.


                    * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                    12 CASTOR BEANS *

                    Ingangsdatum: 15-11-1979
                    Geldig tot en met: 02-12-2004


                    UN no.IMO classMFAG table no.Approximate stowage
                    factor(m3/t)
                    EmS no.
                    29699none
                    B7

                    Properties
                    Whole beans.
                    Castor beans contain a powerful allergen which, by inhalation of dust or by skin contact with crushed bean products, can give rise to severe irritation of the skin, eyes and mucous membranes in some persons. They are also toxic by ingestion.

                    Observations
                    Avoid unnecessary skin contact.
                    Penetration of dust into living quarters and working areas should be avoided. Castor meal, castor pomace and castor flakes should not be carried in bulk.

                    Segregation and stowage requirements
                    "Separated from" foodstuffs and oxidizing materials (goods in packaged form and solid bulk materials).

                    Special requirements
                    When handling the material, use dust-mask and goggles.


                    * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                    13 CHARCOAL *

                    Ingangsdatum: 15-11-1979
                    Geldig tot en met: 02-12-2004


                    UN no.IMO classMFAG table no.Approximate stowage
                    factor(m3/t)
                    EmS no.
                    005MHBnone
                    B6

                    Properties
                    May possibly ignite spontaneously. Contact with water may cause self-heating.
                    Liable to cause oxygen depletion in the cargo space.

                    Observations
                    1 Transport of charcoal in class 4.2 is not permitted for transport in bulk.

                    2 Charcoal screenings should be exposed to the weather for not less than 13 days prior to shipment.

                    3 Hot charcoal screenings in excess of 55° should not be loaded.

                    4 The moisture content of charcoal screenings should not be more than 10%.

                    5 Prior to loading, a certificate should be provided by the manufacturer or the shipper stating that the material as offered for shipment is not class 4.2, based on the test carried out in accordance with appendix D.6. For charcoal screenings it should also be stated that the prescribed weathering period has been observed.

                    Segregation and stowage requirements
                    Segregation as required for class 4.1 materials.
                    "Separated from" oily materials. Keep as dry as reasonably practicable.


                    * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                    14 COAL *

                    Ingangsdatum: 15-11-1979
                    Geldig tot en met: 02-12-2004
                    (See also appendix A)


                    UN no.IMO classMFAG table no.Approximate stowage
                    factor(m3/t)
                    EmS no.
                    010MHB311,6160.79 to 1.53B14

                    Properties and characteristics
                    1 Coals may emit methane, a flammable gas. A methane/air mixture containing between 5 % and 16 % methane constitutes an explosive atmosphere which can be ignited by sparks or naked flame, e.g. electrical or frictional sparks, a match or lighted cigarette. Methane is lighter than air and may, therefore, accumulate in the upper region of the cargo space or other enclosed spaces. If the cargo space boundaries are not tight, methane can seep through into spaces adjacent to the cargo space.

                    2 Coals may be subject to oxidation leading to depletion of oxygen and an increase in carbon dioxide in the cargo space (see also section 3 and appendix F).

                    3 Some coals may be liable to self-heating that could lead to spontaneous combustion in the cargo space. Flammable and toxic gases, including carbon monoxide, may be produced. Carbon monoxide is an odourless gas, slightly lighter than air, and has flammable limits in air of 12 % to 75 % by volume. It is toxic by inhalation with an affinity for blood haemoglobin over 200 times that of oxygen.

                    4 Some coals may be liable to react with water and produce acids which may cause corrosion. Flammable and toxic gases; including hydrogen, may be produced. Hydrogen is an odourless gas, much lighter than air, and has flammable limits in air of 4 % to 75 % by volume.

                    Segregation and stowage requirements
                    1 Boundaries of cargo spaces where materials are carried should be resistant to fire and liquids.

                    2 Coals should be "separated from" goods of classes 1 (division 1.4), 2, 3, 4, and 5 in packaged form (see IMDG Code) and "separated from" solid bulk materials of classes 4 and 5.1.

                    3 Stowage of goods of class 5.1 in packaged form or solid bulk materials of class 5.1 above or below a coal cargo should be prohibited.

                    4 Coals should be "separated longitudinally by an intervening complete compartment or hold from"*** goods of class 1 other than division 1.4.

                    General requirements for all coals
                    1 Prior to loading, the shipper or his appointed agent should provide in writing to the master the characteristics of the cargo and the recommended safe handling procedures for loading and transport of the cargo. As a minimum, the cargo's contract specifications for moisture content, sulphur content and size should be stated, and especially whether the cargo may be liable to emit methane or self-heat.

                    2 The master should be satisfied that he has received such information prior to accepting the cargo. If the shipper has advised that the cargo is liable to emit methane or self-heat, the master should additionally refer to the "Special precautions".

                    3 Before and during loading, and while the material remains on board, the master should observe the following:
                    .1 All cargo spaces and bilge wells should be clean and dry. Any residue of waste material or previous cargo should be removed, including removable cargo battens, before loading.
                    .2 All electrical cables and components situated in cargo spaces and adjacent spaces should be free from defects. Such cables and electrical components should be safe for use in an explosive atmosphere or positively isolated.
                    .3 The ship should carry on board appropriate instruments for measuring the following without requiring entry into the cargo space:
                      .3.1 concentration of methane in the atmosphere;
                      .3.2 concentration of oxygen in the atmosphere;
                      .3.3 concentration of carbon monoxide in the atmosphere; and
                      .3.4 pH value of cargo hold bilge samples. These instruments should be regularly serviced and calibrated. Ship personnel should be trained in the use of such instruments. Details of gas measurement procedures are given in appendix G.
                      .4 It is recommended that means be provided for measuring the temperature of the cargo in the range 0-100°C. Such arrangements should enable the temperature of the coal to be measured while being loaded and during the voyage without requiring entry into the cargo space.
                      .5 The ship should carry on board the self-contained breathing apparatus required by SOLAS regulation II- 2/17. The self-contained breathing apparatus should be worn only by personnel trained in its use (see also section 3 and appendix F).
                      .6 Smoking and the use of naked flames should not be permitted in the cargo areas and adjacent spaces and appropriate warning notices should be posted in conspicuous places. Burning, cutting, chipping, welding or other sources of ignition should not be permitted in the vicinity of cargo spaces or in other adjacent spaces, unless the space has been properly ventilated and the methane gas measurements indicate it is safe to do so.
                      .7 The master should ensure that the coal cargo is not stowed adjacent to hot areas.
                      .8 Prior to departure the master should be satisfied that the surface of the material has been trimmed reasonably level to the boundaries of the cargo space to avoid the formation of gas pockets and to prevent air from permeating the body of the coal. Casings leading into the cargo space should be adequately sealed, The shipper should ensure that the master receives the necessary co-operation from the loading terminal (see also section 5).
                      .9 The atmosphere in the space above the cargo in each cargo space should be regularly monitored for the presence of methane, oxygen and carbon monoxide. Details of gas monitoring procedures are given in appendix G. Records of these readings should be maintained. The frequency of the testing should depend upon the information provided by the shipper and the information obtained through the analysis of the atmosphere in the cargo space.
                      .10 Unless expressly directed otherwise, all holds should be surface ventilated for the first 12 hours after departure from the loading port. During this period, one measurement should be taken from one sample point per hold. If after 24 hours the methane concentrations are at an acceptably low level, the ventilators should be closed. If not, they should remain open until acceptably low levels are obtained. In either event measurements should be continued on a daily basis. If significant concentrations of methane subsequently occur in unventilated holds the appropriate special precautions as described in section 2.2.1 should apply.
                      .11 The master should ensure as far as possible that any gases which may be emitted from the materials do not accumulate in adjacent enclosed spaces.
                      .12 The master should ensure that enclosed working spaces, e.g. storerooms, carpenter's shop, passage ways, tunnels, etc., are regularly monitored for the presence of methane, oxygen and carbon monoxide. Such spaces should be adequately ventilated.
                      .13 Regular hold bilge testing should be systematically carried out. If the pH monitoring indicates that a corrosion risk exists, the master should ensure that all bilges are kept dry during the voyage in order to avoid possible accumulation of acids on tank tops and in the bilge system.
                      .14 If the behaviour of the cargo during the voyage differs from that specified in the cargo declaration, the master should report such differences to the shipper. Such reports will enable the shipper to maintain records on the behaviour of the coal cargoes, so that the information provided to the master can be reviewed in the light of transport experience.
                      .15 The Administration may approve alternative requirements to those recommended in this schedule.

                      Special precautions
                      1 Coals emitting methane
                      If the shipper has advised that the cargo is liable to emit methane or analysis of the atmosphere in the cargo space indicates the presence of methane in excess of 20% of the lower explosive limit (LEL), the following additional precautions should be taken:
                        .1 Adequate surface ventilation should be maintained. On no account should air be directed into the body of the coal as air could promote self-heating.
                        .2 Care should be taken to vent any accumulated gases prior to removal of the hatch covers or other openings for any reason, including unloading. Cargo hatches and other openings should be opened carefully to avoid creating sparks. Smoking and the use of naked flame should be prohibited.
                        .3 Personnel should not be permitted to enter the cargo space or enclosed adjacent spaces unless the space has been ventilated and the atmosphere tested and found to be gas-free and to have sufficient oxygen to support life. If this is not possible, emergency entry into the space should be undertaken only by trained personnel wearing self-contained breathing apparatus, under the supervision of a responsible officer. In addition, special precautions to ensure that no source of ignition is carried into the space should be observed (see also section 3 and appendix F).
                        .4 The master should ensure that enclosed working spaces, e.g. storerooms, carpenter's shops, passage ways, tunnels, etc., are regularly monitored for the presence of methane. Such spaces should be adequately ventilated and, in the case of mechanical ventilation, only equipment safe for use in an explosive atmosphere should be used. Testing is especially important prior to permitting personnel to enter such spaces or energizing equipment within those spaces. 2 Self-heating coals
                          .1 If the shipper has advised that the cargo is liable to self-heat, the master should wish to seek confirmation that the precautions intended to be taken and the procedures intended for monitoring the cargo during the voyage are adequate.
                          .2 If the cargo is liable to self-heat or analysis of the atmosphere in the cargo space indicates an increasing concentration of carbon monoxide, then the following additional precautions should be taken:
                          .2.1 The hatches should be closed immediately after completion of loading in each cargo space. The hatch covers can also be additionally sealed with a suitable sealing tape. Surface ventilation should be limited to the absolute minimum time necessary to remove methane which may have accumulated. Forced ventilation should not be used. On no account should air be directed into the body of the coal as air could promote self-heating.
                          .2.2 Personnel should not be allowed to enter the cargo space, unless they are wearing self-contained breathing apparatus and access is critical to the safety of the ship or safety of life. The self-contained breathing apparatus should be worn only by personnel trained in its use (see also section 3 and appendix F).
                          .2.3 When required by the competent authority, the temperature of the cargo in each cargo space should be measured at regular time intervals to detect self-heating.
                          .2.4 If at the time of loading, when the hatches are open, the temperature of the coal exceeds 55°C, expert advice should be obtained.
                          .2.5 If the carbon monoxide level is increasing steadily, a potential self-heating may be developing. The cargo space should be completely closed down and all ventilation ceased. The master should seek expert advice immediately. Water should not be used for cooling the material or fighting coal cargo fires at sea, but may be used for cooling the boundaries of the cargo space.
                          .2.6 Information to be passed to owners The most comprehensive record of measurements will always be the log used to record daily results. The coal cargo monitoring log for the voyage should be faxed, or the appropriate content should be telexed to the vessel's owners. The following minimum information is essential if an accurate assessment of the situation is to be achieved:
                          (a) identity of the holds involved; monitoring results covering carbon monoxide, methane and oxygen concentrations;
                          (b) if available, temperature of coal, location and method used to obtain results;
                          (c) time gas samples taken (monitoring routine);
                          (d) time ventilators opened/closed;
                          (e) quantity of coal in hold(s) involved;
                          (f) type of coal as per shipper's declaration, and any special precautions indicated on declaration;
                          (g) date loaded, and ETA at intended discharge port (which should be specified);
                          (h) comments or observations from the ship's Master.

                          * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.
                          ** Refer to paragraph 6.1.1 (Asphyxia) of the MFAG.
                          ***For the interpretation of the segregation terms see paragraph 9.3.3

                          15 COPRA, * dry

                          Ingangsdatum: 15-11-1979
                          Geldig tot en met: 02-12-2004


                          UN no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          13634.2none2.00B6

                          Properties
                          Dried kernels of coconuts, with a penetrating rancid odour which may taint other cargoes. Liable to heat, and to ignite spontaneously. Liable to cause oxygen depletion in the cargo space.

                          Observations
                          Refuse shipment when wet.
                          This substance should preferably have been weathered for not less than one month before shipment unless a certificate from a person recognized by the competent authority of the country of shipment states a maximum moisture content of 5%.

                          Segregation and stowage requirements
                          The material should not be stowed against heated surfaces, including fuel oil tanks which may require heating.
                          Provide good surface ventilation.

                          * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                          16 DIRECT REDUCED IRON, DRI *

                          Ingangsdatum: 15-11-1979
                          Geldig tot en met: 02-12-2004
                          (not to be confused with iron sponge, spent)
                          such as lumps, pellets and cold-moulded briquettes

                          Definitions
                          "Direct reduced Iron (DRI)" is a metallic material of a manufacturing process formed by the reduction (removal of oxygen) of iron oxide at temperatures below the fusion point of iron. Cold-moulded briquettes should be defined as those which have been moulded at a temperature of under 650 degrees C or which have a density of under 5.0 g/cm3.

                          BC no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          015MHBnone0.5**B15

                          Properties
                          DRI may react with water and air to produce hydrogen and heat. The heat produced may cause ignition. Oxygen in an enclosed space may be depleted.

                          Lumps and pellets
                          Average particle size 6 mm to 25 mm with up to 5% fines (under 4 mm).

                          Cold-moulded briquettes
                          Approximate maximum dimensions 35 mm to 40 mm.

                          Segregation and stowage requirements
                          Boundaries of compartments where DRI is carried should be resistant to fire and passage of water.
                          "Separated from" goods of classes 1 (division 1.4 S), 2, 3, 4 and 5 and class 8 acids in packaged form (see IMDG Code) and "separated from" solid bulk materials of classes 4 and 5. Goods of class 1, other than division 1.4 S, should not be carried in the same ship.

                          Special requirements

                          Certification
                          A competent person recognized by the national Administration of the country of shipment should certify to the ship's master that the DRI, at the time of loading, is suitable for shipment. Shippers should certify that the material conforms with the requirement of this Code.

                          Shipper's requirements
                          Prior to shipment, DRI should be aged for at least 72 hours, or treated with an air passivation technique, or some other equivalent method that reduces the reactivity of the material to at least the same level as the aged product.

                          A. Shipper should provide necessary specific instructions for carriage, either:
                          1 maintenance throughout the voyage of cargo spaces under an inert atmosphere containing less than 5% oxygen. The hydrogen content of the atmosphere should be maintained at less than 1% by volume; or
                          2 that the DRI has been manufactured or treated with an oxidation and corrosion-inhibiting process which has been proved, to the satisfaction of the competent authority, to provide effective protection against dangerous reaction with seawater or air under shipping conditions.

                          B. The provision of paragraph A above may be waived or varied if agreed to by the competent authorities of the countries concerned, taking into account the sheltered nature, length, duration, or any other applicable conditions of any specific voyage.

                          Precautions

                          1 The ship selected should be suitable in all respects for carriage of DRI;

                          2 Prior to loading:
                          All cargo spaces should be clean and dry. Bilges should be sift-proof and kept dry during the voyage. Wooden fixtures such as battens, etc., should be removed. Where possible, adjacent ballast tanks, other than double-bottom tanks, should be kept empty. Weatherdeck closures should be inspected and tested to ensure integrity.

                          3 DRI should not be loaded if material temperature is in excess of 65°C or 150°F.

                          4 Except as provided for under paragraph A(2) above, any material which is wet or is known to have been wetted should not be accepted for carriage. Materials should be loaded, stowed and transported under dry conditions.

                          5 Monitoring for the presence of oxygen and hydrogen should be carried out at regular intervals throughout the voyage, recorded, and the information kept on board and made available on request. ***

                          6 Cargo spaces containing DRI materials may become oxygen- depleted and all due caution should be exercised upon entering such compartments.

                          7 No smoking, burning, cutting, chipping or other source of ignition should be allowed in the vicinity of cargo spaces containing DRI.

                          8 Radar and RDF scanners should be adequately protected against dust during loading and discharging operations.


                          * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.
                          ** Briquettes may be less
                          ***Such instrumentation should be suitable for use in an inert atmosphere.

                          17 DIRECT REDUCED IRON *

                          Ingangsdatum: 15-11-1979
                          Geldig tot en met: 02-12-2004
                          Briquettes, hot-moulded

                          Definitions
                          A material emanating from a densification process whereby the direct reduced iron (DRI) feed material is at a temperature greater than 650°C at time of moulding and has a density greater than 5.0 g/cm3.

                          BC no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          016MHBnone0.35**B15


                          Properties
                          Material may slowly evolve hydrogen after contact with water. Temporary self-heating of about 30°C may be expected after material handling in bulk.
                          Approximate size: length 90 mm to 130 mm
                          width 80 mm to 100 mm
                          thickness 20 mm to 50 mm
                          briquette weight 0.5 kg to 2.0 kg
                          Fines: up to 5% (under 4 mm).


                          Observations
                          Open storage is acceptable prior to loading. Loading, including transfer from one ship to another, during rain is unacceptable. Unloading under all weather conditions is acceptable. During discharge a fine spray of fresh water is permitted for dust control.

                          Segregation and stowage requirements
                          Boundaries of compartments where DRI is carried should be resistant to fire and passage of water. "Separated from" goods of classes 1 (division 1.4), 2, 3, 4 and 5 and class 8 acids in packaged form (see IMDG Code) and "separated from" solid bulk materials of classes 4 and 5. "Separated longitudinally by an intervening complete compartment or hold from" goods of class 1 other than division 1.4.

                          Special requirements

                          Certification
                          A competent person recognized by the national Administration of the country of shipment should certify to the ship's master that the DRI, at the time of loading, is suitable for shipment. Shippers should certify that the material conforms with the requirement of this Code.

                          Shippers' requirements
                          The shipper may provide advice in amplification of this Code but not contrary thereto in respect of safety during carriage.

                          Precautions

                          1 Prior to loading: All cargo spaces should be clean and dry. Bilges should be sift-proof and kept dry during the voyage. Wooden fixtures such as battens, etc., should be removed. Where possible, adjacent ballast tanks, other than double-bottom tanks, should be kept empty. Weatherdeck closures should be inspected and tested to ensure integrity.

                          2 Hot-moulded briquettes should not be loaded if product temperature is in excess of 65°C (150°F).

                          3 Cargo spaces containing DRI material may become oxygen- depleted and all due caution should be exercised upon entering such compartments.

                          4 Adequate surface ventilation should be provided.

                          5 Radar and RDF scanners should be adequately protected against dust during loading and discharging operations.


                          * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.
                          ** To be verified by shipper

                          18 FERROPHOSPHORUS *

                          Ingangsdatum: 15-11-1979
                          Geldig tot en met: 02-12-2004
                          (including briquettes)

                          BC no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          020MHB601,6050.20 (for briquettes only)B2


                          Properties
                          May evolve flammable and toxic gases (e.g. phosphine) on contact with water.

                          Segregation and stowage requirements
                          Segregation as required for class 4.3 materials.
                          "Separated from" foodstuffs and all class 8 liquids.
                          Only to be loaded under dry weather conditions.
                          Keep as dry as reasonably practicable.
                          To be stowed in a mechanically ventilated space.


                          * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                          19 FERROSILICON, * with 30% or more but less than 90% silicon

                          Ingangsdatum: 15-11-1979
                          Geldig tot en met: 02-12-2004
                          (including briquettes)

                          UN no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          14084.3601,6050.48 to 0.72 (0.65 to 0.60 for briquettes)B2


                          Properties
                          In contact with moisture or water may evolve hydrogen, a flammable gas which may form explosive mixtures with air. Impurities may, under similar circumstances, produce phosphine and arsine, which are highly toxic gases. These gases are evolved in proportions which, under mechanically ventilated conditions, make the poison hazard by far predominant to the explosion hazard. The rate of gas evolution is greatest from freshly broken surfaces, so it is liable to increase whenever the material is disturbed, e.g. during loading.

                          Observations
                          Prior to loading, a certificate should be provided by the manufacturer or shipper stating that, after manufacture, the material was stored under cover, but in the open air, in the particle size in which it is to be shipped, for not less than three days prior to shipment.

                          Segregation and stowage requirements
                          "Separated from" foodstuffs and all class 8 liquids.
                          Only to be loaded under dry weather conditions.
                          Keep as dry as reasonably practicable.
                          To be stowed in a mechanically ventilated space.

                          Special requirements
                          The cargo spaces should be ventilated by at least two separate fans which should be either explosion-proof or arranged so that the escaping gas flow is separated from electrical cables and components. The total ventilation should be at least six air changes per hour, based on the empty space. Ventilation should be such that any escaping gases cannot reach living quarters on or under deck.
                          Bulkheads to the engine-room should be gastight and should be inspected and approved by the competent authority, who should also be satisfied as to the safety of the bilge pumping arrangements. Inadvertent pumping through machinery spaces should be avoided.
                          At least two self-contained breathing apparatuses additional to those required by regulation II-2/17 of the 1974 SOLAS Convention, as amended, should be provided. At least two suitable detectors for quantitative measurements of phosphine and arsine should be on board. The measurements should be recorded and the information kept on board.


                          * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                          20 FERROSILICON, * containing 25% to 30% silicon, or 90% or more silicon

                          Ingangsdatum: 15-11-1979
                          Geldig tot en met: 02-12-2004
                          (including briquettes)

                          BC no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          022MHB601,6050.48 to 0.72 (0.65 to 0.90 for briquettes)B2


                          Properties
                          In contact with moisture or water may evolve hydrogen, a flammable gas which may form explosive mixtures with air. Impurities may, under similar circumstances, produce phosphine and arsine, which are highly toxic gases. These gases are evolved in proportions which, under mechanically ventilated conditions, make the poison hazard by far predominant to the explosion hazard. The rate of gas evolution is greatest from freshly broken surfaces, so it is liable to increase whenever the material is disturbed, e.g. during loading.

                          Observations
                          Prior to loading, a certificate should be provided by the manufacturer or shipper stating that, after manufacture, the material was stored under cover, but in the open air, in the particle size in which it is to be shipped, for not less than three days prior to shipment.

                          Segregation and stowage requirements
                          Segregation as required for class 4.3 materials, but "separated from" foodstuffs and all class 8 liquids.
                          Only to be loaded under dry weather conditions.
                          Keep as dry as reasonably practicable.
                          To be stowed in a mechanically ventilated space.

                          Special requirements
                          The cargo spaces should be ventilated by at least two separate fans which should be either explosion-proof or arranged so that escaping gas flow is separated from electrical cables and components.
                          The total ventilation should be at least six air changes per hour, based on the empty space. Ventilation should be such that any escaping gases cannot reach living quarters on or under deck. Bulkheads to the engine-room should be gastight and should be inspected and approved by the competent authority, who should also be satisfied as to the safety of the bilge pumping arrangements. Inadvertent pumping through machinery should be avoided.
                          At least two self-contained breathing apparatuses, additional to those required by regulation II-2/17 of the 1974 SOLAS Convention, as amended, should be provided.
                          At least two suitable detectors for quantitative measurements of phosphine and arsine should be on board. The measurements should be recorded and the information kept on board.


                          * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                          21 FERROUS METAL, BORINGS, SHAVINGS, TURNINGS OR CUTTINGS in a form liable to self-heating *

                          Ingangsdatum: 15-11-1979
                          Geldig tot en met: 02-12-2004
                          Iron swarf, Steel swarf

                          UN no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          27394.2none**
                          B13


                          Properties
                          These materials are liable to self-heating and to ignite spontaneously, particularly when in a finely divided form, wet or contaminated with such materials as unsaturated cutting oil, oily rags and other combustible matter. Self-heating or inadequate ventilation may cause dangerous depletion of oxygen in the cargo spaces.

                          Observations
                          Excessive amounts of cast iron borings or organic materials may encourage heating. The material should be protected from moisture prior to and after loading. If, during loading, the weather is inclement, hatches should be closed or otherwise protected to keep the material dry.
                          The provisions of this appendix should not apply to consignments of materials which are accompanied by a declaration submitted prior to loading by the shipper and stating that they have no self-heating properties when transported in bulk.

                          Segregation and stowage requirements
                          "Separated from" foodstuffs.

                          Special requirements
                          1 Prior to loading, temperature of the material should not exceed 55&degC. Wooden sweat battens, dunnage and debris should be removed from the cargo space before the material is loaded.

                          2 The surface temperature of the material should be taken prior to, during and after loading and daily during the voyage.
                          Temperature readings during the voyage should be taken in such a way as not to require entry into the cargo space or, alternatively, if entry is required for this purpose, sufficient breathing apparatus, additional to that required by the safety equipment regulations, should be provided. If the surface temperature exceeds 90&degC during loading, further loading should cease and should not recommence until the temperature has fallen below 85 &degC. The ship should not depart unless the temperature is below 65&degC and has shown a steady or downward trend in temperature for at least eight hours. During loading and transport, the bilge of each cargo space in which the material is stowed should be as dry as practicable. During loading, the material should be compacted in the cargo space as frequently as practicable with a bulldozer or other means. After loading, the material should be trimmed to eliminate peaks and should be compacted.

                          3 Whilst at sea, any rise in surface temperature of the material indicates a self-heating reaction problem. If the temperature should rise to 80&degC, a potential fire situation is developing and the ship should make for the nearest port. Water should not be used at sea. Early application of an inert gas to a smouldering situation may be effective. In port, copious quantities of water may be used but due consideration should be given to stability.

                          4 Entry into cargo spaces containing this material should be made only with the main hatches open and after adequate ventilation and when using breathing apparatus.


                          * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.
                          ** Refer to paragraph 6.1.1 (Asphyxia) of the MFAG.

                          22 FISHMEAL, STABILIZED * / FISHSCRAP, STABILIZED *,

                          Ingangsdatum: 15-11-1979
                          Geldig tot en met: 02-12-2004
                          anti-oxidant treated

                          Moisture content: greater than 5% but not exceeding 12%, by mass. Fat content: not more than 15%, by mass.

                          UN no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          22169none
                          B8


                          Properties
                          Brown to greenish-brown material obtained through heating and drying of fish. Strong odour which may affect other cargo. Liable to heat spontaneously unless of low fat content or effectively anti-oxidant treated. Liable to cause oxygen depletion in the cargo space.

                          Observations
                          1 Stabilization of fishmeal should be achieved to prevent spontaneous combustion by effective application of between 400 and 1000 mg/kg (ppm) ethoxy-quin, or of between 1000 and 4000 mg/kg (ppm) butylated hydroxytoluene at the time of production. This application should take place not more than 12 months prior to shipment. Anti-oxidant remnant concentration should be not less than 100 mg/kg (ppm) at the time of shipment.

                          2 Certificates from a person recognized by the competent authority of the country of shipment should state: moisture content; fat content; details of anti-oxidant treatment for meals older than six months; anti-oxidant concentration at the time of shipment, which must exceed 100 mg/kg (ppm); total weight of the consignment; temperature of fishmeal at the time of dispatch from the factory and the date of production.

                          3 The provisions of this appendix should not apply to consignments of fish-meal which are accompanied by a certificate issued by the competent authority of the country of shipment, stating that the material has no self-heating properties when transported in bulk (see appendix C).

                          Segregation and stowage requirements
                          Segregation as required for class 4.2 materials.

                          Special requirements
                          1 The temperature of the material should not, at the time of loading, exceed 35°C or 5°C above ambient temperature, whichever is higher.

                          2 Temperature readings should be taken at eight-hour intervals throughout the material. The readings should be recorded and the information kept on board.

                          3 If the temperature of the material exceeds 55°C and continues to increase, ventilation to the cargo space should be restricted. If self-heating continues, then carbon dioxide or inert gas should be introduced.

                          Note: No weathering/curing is required prior to loading.


                          * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                          23 FLUORSPAR * (calcium fluoride)

                          Ingangsdatum: 15-11-1979
                          Geldig tot en met: 02-12-2004
                          anti-oxidant treated

                          Moisture content: greater than 5% but not exceeding 12%, by mass. Fat content: not more than 15%, by mass.

                          BC no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          025MHBnoneDry: 0.56 to 0.70
                          Wet: 0.47 to 0.56
                          B3


                          Properties
                          Harmful and irritating by dust inhalation.

                          Observations
                          Shipped as a coarse dust.

                          Segregation and stowage requirements
                          "Separated from" foodstuffs and all class 8 materials (goods in packaged form and solid bulk materials).

                          Special requirements
                          Exposure of persons to dust should be minimized.


                          * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                          24 IRON OXIDE, spent * / IRON SPONGE, spent *

                          Ingangsdatum: 15-11-1979
                          Geldig tot en met: 02-12-2004

                          UN no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          13764.2635, 640, 6450.45B7


                          Properties
                          Obtained from coal gas purification. Liable to heat and ignite spontaneously, especially if contaminated with oil or moisture. May evolve hydrogen sulphide, sulphur dioxide and hydrogen cyanide, which are toxic gases. Fine dust particles suspended in air present a dust explosion risk. Has a strong odour which may taint other cargo. Liable to cause oxygen depletion in the cargo space.

                          Observations
                          Prior to loading, a certificate should be provided by the manufacturer or shipper stating that the cargo has been cooled and then weathered for not less than eight weeks.

                          Segregation and stowage requirements
                          "Separated from" foodstuffs.


                          * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                          25 LEAD NITRATE *

                          Ingangsdatum: 15-11-1979
                          Geldig tot en met: 02-12-2004

                          UN no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          14695.1110
                          B5


                          Properties
                          Although not combustible itself, mixtures with combustible materials are easily ignited and may burn fiercely.
                          Toxic if swallowed or by dust inhalation.

                          Segregation and stowage requirements
                          "Separated from" foodstuffs.

                          Special requirements
                          Exposure of persons to dust should be minimised.


                          * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                          26 LIME * (UNSLAKED)

                          Ingangsdatum: 15-11-1979
                          Geldig tot en met: 02-12-2004
                          (Calcium oxide, quicklime, dolomitic quicklime)

                          BC no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          030MHB705
                          B3


                          Properties
                          Unslaked lime combines with water to form calcium hydroxide (hydrated lime) or magnesium hydroxide. This reaction develops a great deal of heat which may be sufficient to cause ignition of nearby combustible materials.

                          Observations
                          Corrosive to eyes and mucous membranes.

                          Segregation and stowage requirements
                          "Separated from" all packaged dangerous goods and all appendix B solid bulk materials. Keep dry.

                          Special requirements
                          Exposure of persons to dust should be minimized. When handling the material, use dust mask and goggles.


                          * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                          27 MAGNESIA * (UNSLAKED)

                          Ingangsdatum: 15-11-1979
                          Geldig tot en met: 02-12-2004
                          (Lightburned magnesia, calcined magnesite, caustic calcined magnesite)

                          BC no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          032MHB7050.8B3


                          Properties
                          Unslaked magnesia combines with water to form magnesium hydroxide with an expansion in volume and release of heat. It is similar to LIME (UNSLAKED), but is somewhat less reactive. May cause ignition of materials with low ignition temperatures.

                          Observations
                          Corrosive to eyes and mucous membranes.

                          Segregation and stowage requirements
                          "Separated from" all packaged dangerous goods and all appendix B solid bulk materials.
                          Keep dry.

                          Special requirements
                          Exposure of persons to dust should be minimized. When handling the material, use dust mask and goggles.


                          * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                          28 MAGNESIUM NITRATE

                          Ingangsdatum: 15-11-1979
                          Geldig tot en met: 02-12-2004

                          BC no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          14745.1235
                          B5


                          Properties
                          Although non-combustible itself, mixtures with combustible materials are easily ignited and may burn fiercely.

                          Segregation and stowage requirements
                          "Separated from" foodstuffs.


                          * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                          29 METAL SULPHIDE CONCENTRATES *

                          Ingangsdatum: 15-11-1979
                          Geldig tot en met: 02-12-2004
                          (See also appendix A)

                          BC no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          035MHB225, 635, 640**0.31 ~ 0.56B9


                          Properties
                          Solid, finely divided sulphide concentrates of copper, iron, lead, nickel, zinc or other metalliferous ores.
                          Some sulphide concentrates are liable to oxidation and may have a tendency to self-heat, with associated oxygen depletion and emission of toxic fumes. Some materials may present corrosion problems.

                          Observations
                          Prior to loading, the shipper or the competent authority should provide detailed information concerning any specific hazards and the precautions to be followed, based on the history of carriage of the materials to be loaded.

                          Segregation and stowage requirements
                          When determined necessary by the competent authority, segregation as required for class 4.2 materials.
                          "Separated from" foodstuffs and all class 8 acids.

                          Special requirements
                          Loading and unloading operations should be closely supervised to minimize exposure to dust. Depending upon the advice of the shipper or the competent authority the following precautions should be followed:

                          1 oxygen stimulates the process of oxidation and self- heating, and thus ventilation of the materials should be avoided. Oxidation may also be inhibited by compaction of the material or restricting the ingress of air by carefully covering it with plastic sheeting;

                          2 to decrease the effects of oxidation, materials should be reasonably levelled following loading; and

                          3 entry by personnel into cargo spaces containing such materials should not be permitted until the master of the ship or the responsible officer is satisfied that it is safe to do so after taking into account all safety precautions.


                          * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.
                          ** Refer to paragraph 6.1.1 (Asphyxia) of the MFAG.

                          30 PEAT MOSS, with a moisture content of more than 65% by weight - fine to coarse fibrous structure

                          (See also appendix A, other materials)

                          BC no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          038MHB6150.50 to 1.87*B9


                          Properties
                          Surface mined from wet marsh, swamp or bog areas, physical properties are based on content of organic matter, minerals, gas and water, and it is identified according to vegetational origin or degree of composition. May range from a highly fibrous material which tends to cling together - and when squeezed, the resulting water is clear - to a soil/mud-like material - and when squeezed the resulting water is brown - which is less cohesive.
                          Peat materials may also be known by other names such as sphagnum peat moss, peat bog, open maskeg, swamp muck, marsh vegetation or organic soils.
                          Typically it is characterized by low density, high compressibility and high water content, in its natural state can hold 90% or more by weight of water when saturated.
                          Liable to cause oxygen depletion, and the emission of marsh (methane, carbon dioxide) types of gases on longer voyages (see also section 3 and appendix F). Fine dust particles suspended in air may also present a dust explosion risk.
                          It is likely that peat moss will not support heavy objects and no attempt should be made to walk, or land machinery, on the surface without proper precautions.

                          Observations
                          Prior to departure the master should be satisfied that the surface of the consignment has been trimmed reasonably level.

                          Special requirements
                          Prior to shipment the material should be stockpiled under cover to effect drainage and reduce the moisture content.
                          In addition to 4.1.2, the following data is required to identify the peat moss:
                          1. texture (describes appearance of fresh sample);
                          2. particle properties (this term refers to the type and state of preservation of the predominant visible remnants of plants such as fibres, twigs or leaves and moss);
                          3. natural water content.
                          Persons handling horticultural sphagnum, or peat moss, run some risk of contracting sporiotrichosis, a disease caused by fungi, which may enter the body through cuts and scratches. It is advisable to frequently wash the hands, give prompt attention to cuts and scrapes, and wear suitable gloves. Exposure of persons to dust should be minimized. When handling the material, use dust mask and goggles.
                          Ventilation should be such that any escaping gases cannot reach living quarters on or under the deck.


                          * Varies widely - to be verified by shipper

                          Ingangsdatum: 15-11-1979
                          Geldig tot en met: 03-06-1999
                          (See also appendix A, other materials)

                          BC no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          038MHB6150.50 to 1.87*B9


                          Properties
                          Surface mined from wet marsh, swamp or bog areas, physical properties are based on content of organic matter, minerals, gas and water, and it is identified according to vegetational origin or degree of composition. May range from a highly fibrous material which tends to cling together - and when squeezed, the resulting water is clear - to a soil/mud-like material - and when squeezed the resulting water is brown - which is less cohesive.
                          Peat materials may also be known by other names such as sphagnum peat moss, peat bog, open maskeg, swamp muck, marsh vegetation or organic soils.
                          Typically it is characterized by low density, high compressibility and high water content, in its natural state can hold 90% or more by weight of water when saturated.
                          Liable to cause oxygen depletion, and the emission of marsh (methane, carbon dioxide) types of gases on longer voyages (see also section 3 and appendix F). Fine dust particles suspended in air may also present a dust explosion risk.
                          It is likely that peat moss will not support heavy objects and no attempt should be made to walk, or land machinery, on the surface without proper precautions.

                          Observations
                          Prior to departure the master should be satisfied that the surface of the consignment has been trimmed reasonably level.

                          Special requirements
                          Prior to shipment the material should be stockpiled under cover to effect drainage and reduce the moisture content.
                          In addition to 4.1.2, the following data is required to identify the peat moss:
                          1. texture (describes appearance of fresh sample);
                          2. particle properties (this term refers to the type and state of preservation of the predominant visible remnants of plants such as fibres, twigs or leaves and moss);
                          3. natural water content.
                          Persons handling horticultural sphagnum, or peat moss, run some risk of contracting sporiotrichosis, a disease caused by fungi, which may enter the body through cuts and scratches. It is advisable to frequently wash the hands, give prompt attention to cuts and scrapes, and wear suitable gloves. Exposure of persons to dust should be minimized. When handling the material, use dust mask and goggles.
                          Ventilation should be such that any escaping gases cannot reach living quarters on or under the deck.


                          * Varies widely - to be verified by shipper

                          30 PEAT MOSS

                          Ingangsdatum: 04-06-1999
                          Geldig tot en met: 02-12-2004
                          (See also appendix A, other materials)

                          BC no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          038MHB6150.50 to 1.87*B9


                          Properties
                          Surface mined from wet marsh, swamp or bog areas, physical properties are based on content of organic matter, minerals, gas and water, and it is identified according to vegetational origin or degree of composition. May range from a highly fibrous material which tends to cling together - and when squeezed, the resulting water is clear - to a soil/mud-like material - and when squeezed the resulting water is brown - which is less cohesive.
                          Peat materials may also be known by other names such as sphagnum peat moss, peat bog, open maskeg, swamp muck, marsh vegetation or organic soils.
                          Typically it is characterized by low density, high compressibility and high water content, in its natural state can hold 90% or more by weight of water when saturated.
                          Liable to cause oxygen depletion, and the emission of marsh (methane, carbon dioxide) types of gases on longer voyages (see also section 3 and appendix F). Fine dust particles suspended in air may also present a dust explosion risk.
                          It is likely that peat moss will not support heavy objects and no attempt should be made to walk, or land machinery, on the surface without proper precautions.

                          Observations
                          Prior to departure the master should be satisfied that the surface of the consignment has been trimmed reasonably level.

                          Special requirements
                          Prior to shipment the material should be stockpiled under cover to effect drainage and reduce the moisture content.
                          In addition to 4.1.2, the following data is required to identify the peat moss:
                          1. texture (describes appearance of fresh sample);
                          2. particle properties (this term refers to the type and state of preservation of the predominant visible remnants of plants such as fibres, twigs or leaves and moss);
                          3. natural water content.
                          Persons handling horticultural sphagnum, or peat moss, run some risk of contracting sporiotrichosis, a disease caused by fungi, which may enter the body through cuts and scratches. It is advisable to frequently wash the hands, give prompt attention to cuts and scrapes, and wear suitable gloves. Exposure of persons to dust should be minimized. When handling the material, use dust mask and goggles.
                          Ventilation should be such that any escaping gases cannot reach living quarters on or under the deck.


                          * Varies widely - to be verified by shipper

                          31 PETROLEUM COKE *

                          Ingangsdatum: 15-11-1979
                          Geldig tot en met: 02-12-2004
                          calcined or uncalcined

                          BC no.IMO classMFAG table no.Approximate stowage
                          factor(m3/t)
                          EmS no.
                          040MHB3111.25 to 1.67B7


                          Properties
                          Black, finely divided residue from petroleum refining in the form of powder and small pieces.

                          Observations
                          The provisions of this appendix should not apply to materials having a temperature below 55 degrees C when loaded.

                          Segregation and stowage requirements
                          "Separated from" foodstuffs. "Separated longitudinally by an intervening complete compartment or hold from" all goods of class 1, divisions 1.1 and 1.5. "Separated by a complete compartment or hold from" all other dangerous and hazardous materials (goods in packaged form and solid bulk materials).

                          Special requirements
                          1 Should not be loaded when the temperature exceeds 107&degC.

                          2 In cargo spaces over tanks containing fuel or material having a flashpoint under 93&degC, a layer of 0.6 m to 1.0 m of the material at a temperature not greater than 44&degC should first be loaded into the cargo space. Only then may the material, at 55&degC or above, be loaded into that cargo space.

                          3 The loading of the material should be as follows:
                            .1 for shipments in cargo spaces over fuel tanks, the loading of the 0.6 m to 1.0 m layer at a temperature not greater than 44&degC (as required in 2) should be completed prior to the loading of the material at 55&degC or above in any cargo space of the ship;
                            .2 upon completion of the loading described in 3.1, a layer of 0.6 m to 1.0 m of the material at 55&degC or above should first be loaded in each cargo space (including those cargo spaces, if any, already containing a layer of the material at a temperature not greater than 44&degC) in which the material is to be loaded in accordance with this entry;
                            .3 upon the completion of the loading of the 0.6 m to 1.0 m layer of the material at 55&degC or above in each cargo space (as required in 3.2), the normal loading of the material at 55&degC or above may proceed to completion; and
                            .4 personnel should be warned by the master of the ship that calcined petroleum coke loaded and transported under this entry is hot and that injury due to burns is possible if precautions are not taken.


                            * For comprehensive information on transport of any material listed, refer to sections 1-10 of this Code.

                            32 PITCH PRILL, * / PRILLED COAL TAR / PENCIL PITCH

                            Ingangsdatum: 15-11-1979
                            Geldig tot en met: 02-12-2004

                            BC no.IMO classMFAG table no.Approximate stowage
                            factor(m3/t)
                            EmS no.
                            050MHBnone1.25 to 1.67B7


                            Properties
                            Exists in various sizes. Melts when heated. Combustible, burns with dense black smoke. Hazard according to flammability. Dust may cause skin and eye irritation.

                            Observations
                            In extremely warm weather, loading or unloading may not be possible due to dust irritation.

                            Segregation and stowage requirements
                            Segregation as required for class 4.1 materials.

                            Special requirements
                            Precautions should be taken to avoid either skin or eye exposure. Decks should be washed down frequently to remove dust deposits. Loading and unloading operations should be closely supervised to prevent exposure to dust.


                            * For comprehensive information on transport of any material listed, refer to sections 1-10 of this Code.

                            33 POTASSIUM NITRATE * / SALTPETRE

                            Ingangsdatum: 15-11-1979
                            Geldig tot en met: 02-12-2004

                            UN no.IMO classMFAG table no.Approximate stowage
                            factor(m3/t)
                            EmS no.
                            14865.123530 ~ 31B5


                            Properties
                            Although non-combustible, mixtures with combustible materials are readily ignited and may burn fiercely.

                            Segregation and stowage requirements
                            "Separated from" foodstuffs.


                            * For comprehensive information on transport of any material listed, refer to sections 1-10 of this Code.

                            34 RADIOACTIVE MATERIAL / LOW SPECIFIC ACTIVITY MATERIAL (LSA-I) *

                            Ingangsdatum: 15-11-1979
                            Geldig tot en met: 02-12-2004

                            UN no.IMO classMFAG table no.Approximate stowage
                            factor(m3/t)
                            EmS no.
                            29127none**
                            B12


                            Properties
                            The radiotoxicity of LSA-I materials is low. This entry includes ores containing naturally occurring radionuclides (e.g. uranium, thorium) and natural or depleted uranium and thorium concentrates of such ores, including metals, mixtures and compounds. These materials may also present a hazard due to their chemical properties.

                            Observations
                            There should be no leakage outside the cargo space in which these materials are stowed. Inhalation or ingestion should be avoided.

                            Segregation and stowage requirements
                            "Separated from" foodstuffs.

                            Special requirements
                            Cargo spaces used for these materials should not be used for other goods until decontaminated.
                            Exposure of persons to dust should be avoided.


                            * For comprehensive information on transport of any material listed, refer to sections 1-10 of this Code.
                            ** Refer to subsection 7.4 (Hazards from radioactive materials) of the MFAG.

                            35 RADIOACTIVE MATERIAL, / SURFACE CONTAMINATED OBJECT(S) (SCO-I) *

                            Ingangsdatum: 15-11-1979
                            Geldig tot en met: 02-12-2004

                            BC no.IMO classMFAG table no.Approximate stowage
                            factor(m3/t)
                            EmS no.
                            29137none**
                            B12


                            Properties
                            The radioactivity of SCO-I is low. This entry includes solid objects of non-radioactive material having radioactive material distributed on its surfaces on which:
                            1 the non-fixed contamination on the accessible surface, averaged over 300 cm2 (or the area of the surface if less than 300 cm2), does not exceed 4 Bq/cm2 ( 10 - 4μ Ci/cm2) for beta and gamma emitters and low-toxicity alpha emitters, or 0.4 Bq/cm2( 10 - 5μ Ci/cm2) for all other alpha emitters;
                            2 the fixed contamination on the accessible surface, averaged over 300 cm2(or the area of the surface if less than 300 cm2), does not exceed 4 x 10 4 Bq/cm2(1μ Ci/cm2) for beta and gamma emitters and low-toxicity alpha emitters, or 4 x 10 3 Bq/cm2 (0.1μ Ci/cm2) for all other alpha emitters; and
                            3 the non-fixed contamination plus the fixed contamination on the inaccessible surface, averaged over 300 cm2(or the area of the surface if less than 300cm2), does not exceed 4 x 10 4 Bq/cm2(1μ Ci/cm2) for beta and gamma emitters and low-toxicity alpha emitters, or 4 x 10 3 Bq/cm2(0.1μ Ci/cm2) for all other alpha emitters.

                            Observations
                            There should be no leakage outside the cargo space in which these materials are stowed. Inhalation or ingestion should be avoided.

                            Segregation and stowage requirements
                            "Separated from" foodstuffs.

                            Special requirements
                            Cargo spaces used for these materials should not be used for other goods until decontaminated.
                            Exposure of persons to dust should be avoided.


                            * For comprehensive information on transport of any material listed, refer to sections 1-10 of this Code.
                            ** Refer to subsection 7.4 (Hazards from radioactive materials) of the MFAG.

                            36 SAWDUST *

                            Ingangsdatum: 15-11-1979
                            Geldig tot en met: 02-12-2004

                            BC no.IMO classMFAG table no.Approximate stowage
                            factor(m3/t)
                            EmS no.
                            055MHBnone**1.25 to 1.67B6


                            Properties
                            Liable to cause oxygen depletion within the cargo space.
                            If not shipped clean, dry and free from oil, liable to spontaneous combustion.

                            Observations
                            Should only be shipped when clean, dry and free from oil.

                            Segregation and stowage requirements
                            Segregation as required for class 4.1 materials. "Separated from" all class 5.1 liquids and all class 8 liquids.
                            Keep dry.


                            * For comprehensive information on transport of any material listed, refer to sections 1-10 of this Code.
                            ** Refer to subsection 7.4 (Hazards from radioactive materials) of the MFAG.

                            37 SEED CAKE, * containing vegetable oil


                            (a)mechanically expelled seeds, containing more than 10% of oil or more than 20% of oil and moisture combined

                            MEAL, oily
                            OIL CAKE
                            SEED EXPELLERS, oily

                            UN no.IMO classMFAG table no.Approximate stowage
                            factor(m3/t)
                            EmS no.
                            13864.2none**1.39 to 2.09B8


                            Properties
                            Residue remaining after oil has been expelled mechanically from oil-bearing seeds. Used mainly as animal feed or fertilizer. The most common seed cakes include those derived from coconut (copra), cottonseed, groundnut (peanut), linseed, maize (hominy chop), niger seed, palm kernel, rape seed, rice bran, soya bean and sunflower seed and they may be shipped in the form of cakes, flakes, pellets, meal, etc.
                            May self-heat slowly and, if wet or containing an excessive proportion of unoxidized oil, ignite spontaneously. Liable to oxidation, causing subsequent reduction of oxygen in the cargo space. Carbon dioxide may also be produced.

                            Observations
                            Before shipment, this material should be properly aged; the duration of ageing required varies with the oil content. If satisfied, as a result of tests, that such relaxation is justified, the competent authority may permit seed cakes described in this schedule to be carried under conditions governing SEED CAKE (b) (see following entry). Certificates from the competent authority should state the oil content and moisture content. For seed cakes with other oil and moisture content, see following entries.

                            Segregation and stowage requirements
                            To be carried in bulk only with special permission from the competent authority.


                            (b) solvent extractions and expelled seeds, containing not more than 10% of oil and, when the amount of moisture is higher than 10%, not more than 20% of oil and moisture combined

                            MEAL, oily
                            OIL CAKE
                            SEED EXPELLERS, oily

                            UN no.IMO classMFAG table no.Approximate stowage
                            factor(m3/t)
                            EmS no.
                            13864.2none**1.39 to 2.09B8


                            Properties
                            Residue remaining after oil has been extracted by a solvent process or expelled mechanically from oil-bearing seeds. Used mainly as animal feed or fertilizer. The most common seed cakes include those derived from coconut (copra), cottonseed, groundnut (peanut), linseed, maize (hominy chop), niger seed, palm kernel, rape seed, rice bran, soya bean and sunflower seed and they may be shipped in the form of cake, flakes, pellets, meal, etc. May self-heat slowly and, if wet or containing an excessive proportion of unoxidized oil, ignite spontaneously. Liable to oxidation, causing subsequent reduction of oxygen in the cargo space. Carbon dioxide may also be produced.

                            Observations
                            Before shipment, this material should be properly aged; the duration of ageing required varies with the oil content. The provisions of this appendix should not apply to solvent-extracted rape seed meal pellets and soya bean meal containing not more than 4% oil and 15% oil and moisture combined.
                            A certificate from a person recognized by the competent authority of the country of shipment should be provided by the shipper, prior to loading, stating that the provisions for the exemption are met.

                            Segregation and stowage requirements
                            To be stowed in a mechanically ventilated cargo space if solvent-extracted.

                            Special requirements
                            1 A certificate from a recognized authority should state the oil content and moisture content.

                            2 If solvent-extracted, the seed cake should be substantially free from flammable solvent.

                            3 Surface ventilation will assist in removing any residual solvent vapour.

                            4 The seed cake should be kept dry.

                            5 If the voyage exceeds five days the ship should be equipped with facilities for introducing carbon dioxide or another inert gas into the cargo spaces.

                            6 Regular temperature readings should be taken at varying depths in the cargo spaces and recorded. If the temperature of the material exceeds 55°C and continues to increase, ventilation to the cargo space should be restricted. If self- heating continues, then carbon dioxide or inert gas should be introduced. In the case of solvent-extracted seed cakes the use of carbon dioxide should be withheld until fire is apparent, to avoid the possibility of ignition of solvent vapours by the generation of static electricity.

                            7 Smoking and the use of naked lights should be prohibited during loading and unloading and on entry into the cargo spaces at any other time.

                            8 Electrical fuses in cargo space should be extracted. Spark- arresting screens should be fitted to ventilators.


                            (c) solvent extractions containing not more than 1.5% of oil and not more than 11% of moisture

                            MEAL, oily
                            OIL CAKE
                            SEED EXPELLERS, oily

                            UN no.IMO classMFAG table no.Approximate stowage
                            factor(m3/t)
                            EmS no.
                            22174.2none**1.39 to 2.09B8


                            Properties
                            See SEED CAKE (b).

                            Observations
                            The provisions of this appendix should not apply to solvent- extracted rape seed meal pellets and soya bean meal containing not more than 1.5% oil and not more than 11% moisture and being substantially free from flammable solvent. A certificate from a person recognized by the competent authority of the country of shipment should be provided by the shipper, prior to loading, stating that the provisions for the exemption are met (see appendix C).

                            Segregation and stowage requirements
                            To be stowed in a mechanically ventilated cargo space.

                            Special requirements
                            See SEED CAKE (b).


                            * For comprehensive information on transport of any material listed, refer to sections 1-10 of this Code.
                            ** Refer to paragraph 6.1.1 (Asphyxia) of the MFAG.

                            Ingangsdatum: 01-06-2000
                            Geldig tot en met: 02-12-2004

                            (a)mechanically expelled seeds, containing more than 10% of oil or more than 20% of oil and moisture combined

                            MEAL, oily
                            OIL CAKE
                            SEED EXPELLERS, oily

                            UN no.IMO classMFAG table no.Approximate stowage
                            factor(m3/t)
                            EmS no.
                            13864.2none**1.39 to 2.09B8


                            Properties
                            Residue remaining after oil has been expelled mechanically from oil-bearing seeds. Used mainly as animal feed or fertilizer. The most common seed cakes include those derived from coconut (copra), cottonseed, groundnut (peanut), linseed, maize (hominy chop), niger seed, palm kernel, rape seed, rice bran, soya bean and sunflower seed and they may be shipped in the form of cakes, flakes, pellets, meal, etc.
                            May self-heat slowly and, if wet or containing an excessive proportion of unoxidized oil, ignite spontaneously. Liable to oxidation, causing subsequent reduction of oxygen in the cargo space. Carbon dioxide may also be produced.

                            Observations
                            Before shipment, this material should be properly aged; the duration of ageing required varies with the oil content. If satisfied, as a result of tests, that such relaxation is justified, the competent authority may permit seed cakes described in this schedule to be carried under conditions governing SEED CAKE (b) (see following entry). Certificates from the competent authority should state the oil content and moisture content. For seed cakes with other oil and moisture content, see following entries.

                            Segregation and stowage requirements
                            To be carried in bulk only with special permission from the competent authority.


                            (b) solvent extractions and expelled seeds, containing not more than 10% of oil and, when the amount of moisture is higher than 10%, not more than 20% of oil and moisture combined

                            MEAL, oily
                            OIL CAKE
                            SEED EXPELLERS, oily

                            UN no.IMO classMFAG table no.Approximate stowage
                            factor(m3/t)
                            EmS no.
                            13864.2none**1.39 to 2.09B8


                            Properties
                            Residue remaining after oil has been extracted by a solvent process or expelled mechanically from oil-bearing seeds. Used mainly as animal feed or fertilizer. The most common seed cakes include those derived from coconut (copra), cottonseed, groundnut (peanut), linseed, maize (hominy chop), niger seed, palm kernel, rape seed, rice bran, soya bean and sunflower seed and they may be shipped in the form of cake, flakes, pellets, meal, etc. May self-heat slowly and, if wet or containing an excessive proportion of unoxidized oil, ignite spontaneously. Liable to oxidation, causing subsequent reduction of oxygen in the cargo space. Carbon dioxide may also be produced.

                            Observations
                            Before shipment, this material should be properly aged; the duration of ageing required varies with the oil content. The provisions of this appendix should not apply to solvent extracted rape seed meal pellets, soya bean meal, cotton seed meal and sunflower meal containing not more than 4% oil and 15% oil and moisture combined.
                            A certificate from a person recognized by the competent authority of the country of shipment should be provided by the shipper, prior to loading, stating that the provisions for the exemption are met.

                            Segregation and stowage requirements
                            To be stowed in a mechanically ventilated cargo space if solvent-extracted.

                            Special requirements
                            1 A certificate from a recognized authority should state the oil content and moisture content.

                            2 If solvent-extracted, the seed cake should be substantially free from flammable solvent.

                            3 Surface ventilation will assist in removing any residual solvent vapour.

                            4 The seed cake should be kept dry.

                            5 If the voyage exceeds five days the ship should be equipped with facilities for introducing carbon dioxide or another inert gas into the cargo spaces.

                            6 Regular temperature readings should be taken at varying depths in the cargo spaces and recorded. If the temperature of the material exceeds 55°C and continues to increase, ventilation to the cargo space should be restricted. If self- heating continues, then carbon dioxide or inert gas should be introduced. In the case of solvent-extracted seed cakes the use of carbon dioxide should be withheld until fire is apparent, to avoid the possibility of ignition of solvent vapours by the generation of static electricity.

                            7 Smoking and the use of naked lights should be prohibited during loading and unloading and on entry into the cargo spaces at any other time.

                            8 Electrical fuses in cargo space should be extracted. Spark- arresting screens should be fitted to ventilators.


                            (c) solvent extractions containing not more than 1.5% of oil and not more than 11% of moisture

                            MEAL, oily
                            OIL CAKE
                            SEED EXPELLERS, oily

                            UN no.IMO classMFAG table no.Approximate stowage
                            factor(m3/t)
                            EmS no.
                            22174.2none**1.39 to 2.09B8


                            Properties
                            See SEED CAKE (b).

                            Observations
                            The provisions of this appendix should not apply to solvent extracted rape seed meal pellets, soya bean meal, cotton seed meal and sunflower meal containing not more than 1.5% oil and not more than 11% moisture and being substantially free from flammable solvent. A certificate from a person recognized by the competent authority of the country of shipment should be provided by the shipper, prior to loading, stating that the provisions for the exemption are met (see appendix C).

                            Segregation and stowage requirements
                            To be stowed in a mechanically ventilated cargo space.

                            Special requirements
                            See SEED CAKE (b).


                            * For comprehensive information on transport of any material listed, refer to sections 1-10 of this Code.
                            ** Refer to paragraph 6.1.1 (Asphyxia) of the MFAG.

                            38 SILICOMANGANESE *

                            Ingangsdatum: 15-11-1979
                            Geldig tot en met: 02-12-2004
                            (With known hazard profile or known to evolve gases)
                            With a silicon content of 25% or more

                            BC no.IMO classMFAG table no.Approximate stowage
                            factor(m3/t)
                            EmS no.
                            060MHB601, 6050.18 to 0.26B2


                            Properties
                            In contact with water, alkalis or acids may evolve hydrogen, a flammable gas; may also produce phosphine and arsine, which are highly toxic gases.

                            Observations
                            Prior to loading, a certificate should be provided by the manufacturer or shipper stating that after manufacture, the material was stored under cover, but exposed to the open air for not less than three days prior to shipment.

                            Segregation and stowage requirements
                            Segregation as required for class 4.3 materials.
                            "Separated from" foodstuffs and all class 8 liquids.
                            Only to be loaded under dry weather conditions.
                            Keep dry.
                            To be stowed in a mechanically ventilated space.

                            Special requirements
                            Ventilation should be such that any escaping gases cannot reach living quarters on or under deck.


                            * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                            39 SODIUM NITRATE, * / CHILE SALTPETRE / CHILEAN NATURAL NITRATE

                            Ingangsdatum: 15-11-1979
                            Geldig tot en met: 02-12-2004


                            UN no.IMO classMFAG table no.Approximate angle of reponseApproximate stowage
                            factor(m3/t)
                            EmS no.
                            14985.123530 to 310.88B5


                            Properties
                            Deliquescent.
                            Although non-combustible, mixtures with combustible material are readily ignited and may burn fiercely.

                            Segregation and stowage requirements
                            "Separated from" foodstuffs.


                            * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                            40 SODIUM NITRATE * and POTASSIUM NITRATE, mixture CHILEAN NATURAL POTASSIC NITRATE

                            Ingangsdatum: 15-11-1979
                            Geldig tot en met: 02-12-2004


                            UN no.IMO classMFAG table no.Approximate angle of reponseApproximate stowage
                            factor(m3/t)
                            EmS no.
                            14995.1235300.88B5


                            Properties
                            Mixture prepared as a fertilizer. Hygroscopic. Although non-combustible, mixtures with combustible material are readily ignited and may burn fiercely.

                            Segregation and stowage requirements
                            "Separated from" foodstuffs.


                            * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                            41 SULPHUR * (lump and coarse-grained powder)

                            Ingangsdatum: 15-11-1979
                            Geldig tot en met: 02-12-2004


                            UN no.IMO classMFAG table no.Approximate stowage
                            factor(m3/t)
                            EmS no.
                            13504.1635**0.74B9


                            Properties
                            Ignites readily. When involved in a fire, toxic, very irritating and suffocating gas is evolved. Forms explosive and sensitive mixtures with most oxidizing materials. Bulk sulphur has a liability to dust explosion, which may occur especially after discharge and during cleaning.

                            Observations
                            Fine-grained sulphur (flowers of sulphur) should NOT be transported in bulk. Risk of dust explosions may be minimized by preventing the atmosphere becoming dust-laden by adequate (preferably mechanical) ventilation or by hosing down instead of sweeping, preferably with fresh water. Residues are highly corrosive to steel, in particular in the presence of moisture.

                            Segregation and stowage requirements
                            "Separated from" foodstuffs.

                            Special requirements
                            Protect from sparks and open flame. Electrical fuses in cargo spaces should be extracted.
                            Spark-arresting screens should be fitted to ventilators.


                            * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.
                            ** Fire risk only.

                            42 TANKAGE *

                            Ingangsdatum: 15-11-1979
                            Geldig tot en met: 02-12-2004
                            Garbage tankage (containing 8% or more moisture)
                            Rough ammonia tankage (containing 7% or more moisture)
                            Tankage fertilizer (containing 8% or more moisture)

                            BC no.IMO classMFAG table no.Approximate stowage
                            factor(m3/t)
                            EmS no.
                            065MHBnone**

                            B8


                            Properties
                            Subject to spontaneous heating and possible ignition.
                            Possibly infectious.

                            Segregation and stowage requirements
                            Segregation as required for class 4.2 materials.
                            "Separated by a complete cargo space or hold from" foodstuffs.

                            Special requirements
                            Do not load if temperature is above 38°C.
                            Observe temperature during voyage for possible heating trend.


                            * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                            43 VANADIUM ORE *

                            Ingangsdatum: 15-11-1979
                            Geldig tot en met: 02-12-2004

                            BC no.IMO classMFAG table no.Approximate stowage
                            factor(m3/t)
                            EmS no.
                            070MHB135
                            B10


                            Properties
                            Dust may contain toxic constituents.

                            Segregation and stowage requirements
                            Segregation as required for class 6.1 materials.
                            "Separated from" foodstuffs.

                            Special requirements
                            Exposure of persons to dust should be minimized.


                            * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                            44 WOODCHIPS *

                            Ingangsdatum: 15-11-1979
                            Geldig tot en met: 02-12-2004

                            BC no.IMO classMFAG table no.Approximate stowage
                            factor(m3/t)
                            EmS no.
                            075MHB615**3.07B6


                            Properties
                            Some consignments of woodchips may be subject to oxidation, leading to depletion of oxygen and an increase of carbon dioxide in the cargo space.

                            Segregation and stowage requirements
                            Segregation as required for class 4.1 materials.

                            Special requirements
                            Entry of personnel into cargo spaces containing this material should not be permitted until the master of the ship or the responsible officer is satisfied that it is safe to do so after taking into account all safety precautions.


                            * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.
                            ** Refer to paragraph 6.1.1 (Asphyxia) of the MFAG.

                            45 WOOD PULP PELLETS *

                            Ingangsdatum: 15-11-1979
                            Geldig tot en met: 02-12-2004

                            BC no.IMO classMFAG table no.Approximate stowage
                            factor(m3/t)
                            EmS no.
                            080MHB615**3.07B6


                            Properties
                            Some consignments of wood pulp pellets may be subject to oxidation, leading to depletion of oxygen and an increase of carbon dioxide in the cargo space.

                            Segregation and stowage requirements
                            Segregation as required for class 4.1 materials.

                            Special requirements
                            Entry of personnel into cargo spaces containing this material should not be permitted until the master of the ship or the responsible officer is satisfied that it is safe to do so after taking into account all safety precautions.


                            * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.
                            ** Refer to paragraph 6.1.1 (Asphyxia) of the MFAG.

                            46 ZINC ASHES * / ZINC DROSS / ZINC RESIDUE / ZINC SKIMMINGS

                            Ingangsdatum: 15-11-1979
                            Geldig tot en met: 02-12-2004

                            UN no.IMO classMFAG table no.Approximate stowage
                            factor(m3/t)
                            EmS no.
                            14354.3none
                            B11


                            Properties
                            In contact with moisture or water, liable to give off hydrogen, a flammable gas, and toxic gases.

                            Segregation and stowage requirements
                            "Separated from" foodstuffs and all class 8 liquids.

                            Special requirements
                            1 Any shipment of this material requires approval of the competent authorities of the countries of shipment and the flag State of the ship.

                            2 Any material which is wet or is known to have been wetted should not be accepted for carriage. Materials should be handled and transported under dry conditions.

                            3 Ventilation should be adequate to prevent hydrogen build- up.

                            4 All sources of ignition should be eliminated as far as practicable. This includes hot work, burning, cutting, smoking, electrical sparking, etc., during handling and transport.


                            * For comprehensive information on transport of any material, refer to sections 1-10 of this Code.

                            Appendix C List of bulk materials which are neither liable to liquefy nor to possess chemicals hazards

                            Ingangsdatum: 15-11-1979
                            Geldig tot en met: 02-12-2004

                            List of bulk materials which are neither liable to liquefy (appendix A) nor to possess chemical hazards (appendix B).

                            1 It should be carefully noted that this list of materials is not exhaustive and that the physical properties attributed to them are for guidance only.

                            2 The following materials are non-cohesive when dry:
                              AMMONIUM NITRATE FERTILIZERS (NON-HAZARDOUS)
                              AMMONIUM SULPHATE
                              BORAX (ANHYDROUS)
                              CALCIUM NITRATE FERTILIZER
                              DIAMMONIUM PHOSPHATE
                              MONOAMMONIUM PHOSPHATE
                              MURIATE OF POTASH (POTASSIUM CHLORIDE) (KCl)
                              POTASH
                              POTASSIUM SULPHATE
                              SUPERPHOSPHATE
                              UREA Prior to completion of loading, the angle of repose of the materials to be loaded should be determined (see section 6) so as to determine which provisions of this Code relating to trimming apply (see section 5).

                              3 All other materials listed in this appendix are cohesive and use of the angle of repose is, therefore, not appropriate. Materials not listed should be treated as cohesive until otherwise shown.

                              MaterialApprox.
                              angle of
                              repose
                              approx.
                              stowage
                              factor
                              (m3/t)
                              Properties, observations and
                              Special requirements*
                              ALFALFA
                              1.39 to 1.97Material derived from dried alfalfa grass. Shipped in the from of meal, pellets, etc. Requires a certificate from a competent Authority or shipper stating that the material as shipped does not meet the requirements for seed cake under appendix B
                              ALUMINA
                              0.92 to 1.28Fine white, very dusty or colourless crystaline powder . Insoluble in water and organic liquids. Irritating to mucous membranes and dyes. Moisture; 0% to 5%. Use dust mask and goggles when handing.
                              ALUMINA, calcined (CALCINED CLAY)
                              0.61Consists of lumps, particles and pieces with small amount of powder, dusty.
                              Moisture: Light to dark grey.
                              ALUMINA SILICA
                              0.70Consisting of alumina and silica crystals ? 60% lumps, 40% coarse-grained powder.
                              Moisture: 1% to 5%, White.
                              ALUMINA SILICA pellets
                              0.78 to 0.84Length: 6.4 mm to 25.4 mm. Diameter: 6.4 mm Moisture: none. Off-white
                              AMMONTUM NTTRATE FERTILIZERS (NON-HAZARDOUS)27° to 45°0.83 to 1.00(a) Uniform non-segregating mixtures of ammonium nitrate with calcium carbonate and/or dolomite, containing not more than 80% of ammonium nitrate, provided they contain not less than 20% of these carbonates (of minimum purity 90%) and not more than 0.4% of total combustible material (see also appendix B - ammonium nitrate fertilizers, type A2)
                              (b) Uniform non-segregating mixtures of ammonium nitrate/ammonium sulphate containing not more than 45% of ammonium nitrate and not more than 0.4% of total combustible material (see also appendix B - ammonium nitrate fertilizers, type A3).
                              (c) Uniform non-segregating mixtures of nitrogen / phosphate or nitrogen/potash types or complete fertilizers of nitrogen/phosphate/potash type containing not more than 70% of ammonium nitrate and not more than 0.4% of total combustible material or containing not more than 45% of ammonium nitrate with unrestricted combustible matter.
                              The mixtures are considered non-hazardous when, as a result of testing by the trough test method (see appendix D.4), they are found to be free from the risk of self-sustaining decomposition, provided they do not contain an excess of nitrate above the ammonium nitrate content calculated as potassium nitrate above the ammonium nitrate content calculated in the notes below greater than 10% by weight of the mixture. Mixtures in which excess nitrate is present in greater proportion than this should be referred to the competent authority (see also appendix B ? ammonium nitrate fertilizers, type 8).

                              Notes
                              (1) All nitrate ions for which there is present in the mixture a molecular equivalent of ammonium ions should be calculated as ammonium nitrate.
                              (2) Ammonium nitrate materials which are liable to self heating sufficient to initiate a decomposition are prohibited
                              (3) The compatibility of non-hazardous ammonium nitrate mixtures with other materials which may be stowed in the same cargo space should be consid- ered before loading.
                              AMMONUM SULPHATE28° to 35°0.95 to 1.06Chemical fertilizers.
                              A crystalline solid, which readily absorbs moisture. Moisture 0.04% to 0.5%. Liable to cake as a result of absorption of moisture.
                              Carried in bulk. Danger of corrosion of fram-ing, side plating , etc, is present if sweating of car-go space develops. The recommendations given for materials of class 8 with regard to the cleaning of the cargo space after unloading should be followed. (See section 9 Materials possessing chemical hazards, paragraph 9.3.2.4)
                              Ammonia obour. Subject to natural loss in weight.
                              ANTIMONY ORE (STIBNITE) and RESIDUE
                              0.34 to 0.42
                              BARYTES
                              0.34Crystalline ore mineral. A sulphate of barium. Used in paints, textiles and as filler for paper. 80% lumps: 6.4mm to 101.6 mm. 20% fines: < 6.4 mm.
                              Moisture: 1% to 6%
                              BAUXITE
                              0.72 to 0.84Clay-like and earthy ore. The principal ore of aluminium.
                              70% to 90% lumps: 2.5 mm to 500 mm.
                              10% to 30% powder.
                              Moisture: 0% to 10%
                              Brownish yellow.
                              BORAX ANHYDROUS (crude or refined)35°0.78Uniform granular material less than 1.4 mm** in size. Highly refined is of white crystalline appearance. The crued material is normally of yellow-white appearance: can be dusty; dust is irritating, but not toxic, if inhaled. Hygroscopic and will cake if wet; very abrasive.
                              BORAX (PENTAHYDRATE CRUDE. ?RASORITE 46")
                              0.92Fine powder and granules less than 2.36 mm*** in size, grey; dusty; dust is irritating if inhaled but not toxic, Hygroscopic and will cake of wet. Used as the major source of borax and boron products.
                              CALCIUM NITRATE FERTILIZER34°0.90 to 0.95Granules size 1 mm to 4 mm, consisting mainly of a double salt (calcium nitrate and ammonium nitrate) and containing not more than 15.5% total nitrogen and at least 12% water In case the total nitrogen content exceeds 15.5%, or the water content is less than 12%, see appendix B.
                              CARBORUNDUM
                              0.56A hard crystalline compound of carbon and silicon. Slight toxicity by inhalation. Used as an abrasive and for refractory purposes.
                              75% lump: 203.2 mm. 25% lumps: 12.7 mm.
                              Moisture: none. Odourless. Black.
                              CEMENT
                              0.67 to 1.00Fine grey powder. Maximum particle size: 0.1 mm. Both specific gravity and angle of repose are dependent upon the amount of air in the material. Cement contracts approximately 12% from an aerated to a non-aerated state. Normally cement is carried in specially designed ships and trimming is carried out with special equipment. Masters of vessels not specially fitted for the carriage of cement or who are unaware of the characteristics of such cargo should consult local authorities for advice. Considering the fluid nature of the cement prior to settlement, care should be taken to maintain the ship upright during loading and attention should be given to ensuring that the material is trimmed reasonably level. Consideration should also be given to taking any necessary measures to ensure that the cargo has settled and is stable before the ship sails, especially where the loading rate is extreme in relation to the total dead- weight loaded. After the material has settled, shifting should not normally occur unless the angle of the surface with the horizontal plane exceeds 30°. Should be kept dry prior to loading, bilges should be made siftproof and cargo spaces thoroughly cleaned. Contamination of cement renders it useless as a binding agent.
                              CEMENT CLINKERS
                              0.61 to 0.84Unground cement.
                              Size: 0 mm to 40 mm. Moisture: 0% to 5%
                              CHAMOTTE
                              1.50Burned clay. Shipped in the form of fine crushed stone. Used by zinc smelters and in manufacture of firebrick (road metal).
                              Size: up to 10 mm. Grey
                              CHROME ORE (CHROMIUM ORE)
                              0.33 to 0.45Ore. Size: 6.4 mm to 254 mm.
                              Hard, compact, granular, crystalline.
                              Bluish-black. Toxic by dust inhalation.
                              Loading and unloading operations should be closely supervised to prevent exposure to dust.
                              CHROME PELLETS
                              0.60Pellets.
                              Size: 0 mm to 25 mm.
                              Moisture: up to 2% maximum.
                              CLAY
                              0.66 to 1.34Powdery to 100 mm. Moisture: up to 18% .
                              Odourless. Whitish to beige.
                              COKE (coal origin)
                              1.25 to 2.93Used for furnace work and as a fuel.
                              From fines up to 120 mm.
                              Moisture: 5% to 20%.
                              COLEMANITE
                              0.61A natural hydrated calcium berate. Used in boric acid and sodium berate. Fine to large lumps: 300 mm. Moisture: approximately 7% . Light grey appearance similar to clay.
                              COPPER GRANULES
                              0.22 to 0.25Spherical pebbles; fines up to 10 mm, with clinkers up to 50 mm. 75% copper with lead, tin, zinc, races of others.
                              Moisture: 1.5% approximately. Odourless.
                              Dry: light grey. Wet: dark green.
                              COPPER MATTE
                              0.25 to 0.35Crude black copper ore.
                              Small metallic round stones or pellets.
                              Size: 3 mm to 25 mm 75% copper; 25% impurities.
                              Moisture: none. Odourless. Metallic black
                              CRYOLITE
                              0.70A fluoride of sodium and aluminium used in production of aluminium and for ceramic glazes.
                              Pellets: 6.4 mm to 12.7 mm long.
                              Slightly pungent odour. Grey.
                              Prolonged contact may cause serious damage to the skin and nervous system.


                              * For comprehensive information on transport of any material listed, refer to sections 1-10 of this Code.
                              ** 1.4 mm is nearest ISO screen size.
                              *** 2.36 mm is nearest ISO screen size.

                              MaterialApprox.
                              angle of
                              repose
                              approx.
                              stowage
                              factor
                              (m3/t)
                              Properties, observations and
                              Special requirements*
                              DIAMMONIUM PHOSPHATE30°1.20Fertilizer. Diameter: 2.54 mm. Grey
                              Slightly pungent odour.
                              DOLOMITE
                              0.56 to 0.65A carbonate of calcium and magnesium. Used for refractory purposes, road construction and as a fertilizer compound. Size: 0.1 mm to 19.00 mm.
                              Moisture: none. Odourless.
                              Off-white, brown tones.

                              Note
                              DOLOMITE may sometimes, incorrectly, be used to describe a material consisting of the oxides of calcium and magnesium (dolomitic quicklime). In this case, see "LIME (UNSLAKED)" in appendix B.
                              FELSPAR LUMP
                              0.60Crystalline minerals consisting of silicates of aluminium with potassium, sodium, calcium and barium. Used in ceramics and enamelling. Shipment in different sizes between 0.1 mm and 300 mm. White or reddish colour.
                              FERROCHROME
                              0.18 to 0.26Raw material of iron mixed with chrome.
                              Shipment in different sizes between 0 mm and 300 mm.
                              Moisture: none.
                              FERROCHROME exothermic
                              0.18 to 0.26An alloy of iron and chromium
                              Warning: no welding or hot work should be Permitted in vicinity.
                              FERROMANGANESE
                              0.18 to 0.28Raw material or iron mixed with manganese.
                              Shipment in different sizes between fines and 300 mm
                              FERROMANGANESE exothermic


                              FERRONICKEL
                              0.24Dry, non-dusty, gravel-type mixture of lumps and power
                              An alloy of iron and nickel .
                              FERTILIZERS WITHOUT NITRATES. non-hazardous
                              0.90 to 1.40Powder and granular. Size: 1 mm to 3 mm.
                              Moisture: 0% to less than 1% Odourless.
                              Greyish/brown/beige.
                              FISHMEAL (anti-oxidant treated)
                              1.7For Properties: See Fishmeal, stabilized (appendix B). Only permitted for transport if accompanied by a certificate issued by the competent authority of the country of shipment stating that the material has no self-heating properties when transported in bulk.
                              FLY ASH
                              1.26Light finely divided and dusty powder.
                              Diameter: 2 §­to 3 §­. Residual ash from oil or coal-fired power stations.
                              "Fly ash" may sometimes, incorrectly, be used to describe calcined pyrites, being the residue of chemical industry and containing a percentage of free acid (low pH value); an entry has been included in appendix B (BC no. 003).
                              GRANULATED SLAG
                              0.90Residue of blast furnaces in granulated form. Used by industry. Detrimental of loaded too hot.
                              Size: 0 mm to 5 mm. Iron: 0.5%.
                              GYPSUM
                              0.67 to 0.78A natural hydrated calcium sulphate. Insoluble in water. Used in cement, tires, plaster, plate glass, et
                              Average moisture: 1% to 2%
                              ILMENITE SAND
                              0.31 to 0.42Black sand: average grain size: 0.15 mm **
                              Abrasive. Monazite, zircon and titanium are obtained from ilmenite sand. Material should be kept dry.
                              Moisture: 1% to 2%.
                              IRON ORE
                              0.29 to 0.80Ore.
                              Fines and lumps. Size : fines to 250 mm.
                              Dusty. Moisture: 0% to 16%.
                              IRON ORE PELLETS
                              0.24 to 0.53Ore
                              Round pellets. Up to 20 mm.
                              Moisture: 0% to 2%
                              IRON PYPITES
                              0.40Iron sulphide. Used in the manufacture of sulphuric acid.
                              20% fines: 80% lumps. Size: 30 mm 150 mm.
                              IRONSTONE
                              0.39Ore.
                              Maximum size: 75 mm. Moisture: 1% to 2%.
                              LABRDORITE
                              0.60A lime- soda rock form of felspar.
                              Lumps between 50 mm and 300 mm.
                              LEAD ORE
                              0.24 to 0.67Powdery: Toxic, with acids evlives highly toxic vapour
                              LIMESTONE
                              0.67 to 0.84A sedimentary rock containing calcium carbonate; Lumps: size 2 mm to 75 mm. Moisture: up to 4%
                              MAGNESIA (DEADBURNED MAGNESITE, ELECTRO-FUSED MAGNESIA, MAGNESITE CLINKER, MAGNESIA CLINKER)
                              0.5Magnesium oxide, non-reactive with water. Used for refractory purposes. Granular, white. For lightburned magnesia, calcined, caustic calcined or unslaked magnesia, see entry in appendix B. Prior to loading, a declaration should be provided by the manufacturer or shipper stating that the material as offered for shipment. has been sufficiently heat-treated and is ready for loading.
                              MAGNESITE, natural
                              0.7Crystalline carbonate of magnesium. Used for refiactory purposes. Powder/fines to lumps.
                              Size: 3 mm to 30 mm.
                              Odourless. Yellowish. Moisture : none.
                              MANGANESE ORE
                              0.32 to 0.70 Ore.
                              Fine dust to lumps. Size: below 5 mm to 250 mm.
                              Moisture: variable. Up to 15%.
                              MARBLE CHIPS
                              0.85 to 1.00Dry, dusty, white to grey lumps, particles and powder mixed with a small amount of gravel and pebbles,
                              Moisture: none.
                              MILORGANITE
                              1.53Heat-dried activated sludge. Very fine granular product.
                              Moisture: 3% to 5%.
                              Black speckled colour.
                              MONOAMMONIUM PHOSPHATE36°1.21Can be highly corrosive in presence of moisture. Acidity and impurity such as chloride ions in the absence of calcium ions may increase corrosion. Ammonium phosphates with pH greater than 4.5 are essentially non-corrosive.
                              Continuous carriage may have detrimental structural effects over a long period of time.
                              MURIATE OF POTASH30° to 47°0.81 to 1.12Fertilizer. White crystals. In granular and powder form.
                              Moisture: variable Iodine odour.


                              * For comprehensive information on transport of any material listed, refer to sections 1-10 of this Code.
                              ** 0.015mm is nearest ISO screen size

                              MaterialApprox.
                              angle of
                              repose
                              approx.
                              stowage
                              factor
                              (m3/t)
                              Properties, observations and
                              Special requirements*
                              PEANUTS (in shell)
                              3.29Extremely dusty.
                              Moisture: variable. Tan colour.
                              PEBBLES (sea)
                              0.59Round pebbles: 30 mm to 110 mm.
                              Roll very easily; should be overstowed with a layer of sacks.
                              PELLETS (concentrate)
                              0.47Concentrate ore which has been pelletized.
                              Approximately 10 mm. Moisture: up to 6%.
                              PERLITE ROCK
                              0.98 to 1.06Clay-like and dusty. Moisture: 0.5% to 1%. Light grey.
                              Odourless.
                              PHOSPHATE, defluorinated
                              1.12Granular, similar to fine sand.
                              Moisture: none. Dark grey.
                              PHOSPHATE ROCK, calcined
                              0.64 to 1.26Mineral, fertilizer.
                              Usually in the form of fine ground rock or prills. Extremely dusty. Is hygroscopic and will cake and harden if wet. Keep dry.
                              PHOSPHATE ROCK, Uncalcined
                              0.70An ore in which phosphorus and oxygen are chemically united. Lumps and powder. Low angle of repose after loading, but once settled not liable to shift. Dusty.
                              Moisture: 0% to 2%.
                              PIG IRON
                              0.30High-carbon iron.
                              Size: 80 mm x 90 mm x 550 mm.
                              POTASH32° to 35°
                              0.77 to 1.03A carbonate of potassium. Used in fertilizers and soaps.
                              Granular
                              Moisture: variable to 2%.
                              Brown, pink, white.
                              POTASSIUM SULPHATE31°0.90Hard crystals or powder.
                              Used in aluminium, glass etc.
                              Colourless or white.
                              PUMICE
                              1.90 to 3.25Highly porous rock of volcanic origin Used as an abrasive. Powder or lumps.
                              Greyish-white.
                              PYRITE (containing copper and iron)
                              0.33 to 0.50Iron disulphide containing copper and iron.
                              Used in the manufacture of sulphuric acid.
                              Fines and lumps, Various sizes from fines to 300 mm.
                              Moisture: 0% to 7%.
                              PYROPHYLLITE
                              0.50A natural hydrous aluminium silicate. Used in ceramics, slate, pencils, etc.
                              75% lumps; 20% rubble; 5% fines.
                              Chalk-white.
                              QUARTZ
                              0.60Crystalline lumps beteen 50 mm and 300 mm.
                              QUARTZITE
                              0.64Lumps of 10 mm to 130 mm.
                              Moisture: under 1%. White, red, brown.
                              RASORITE (ANHYDROUS)
                              0.67 to 0.78Uniform granular materials less than 2.36 mm** in size; crystalline; yellow-white; little or no dust; abrasive.
                              Hygroscopic and will cake if wet.
                              RUTILE SAND
                              0.39Fine-particled material 60% less than 0.15 mm. ***
                              Abrasive. Material is used for hardening steel. Shipped dry.
                              SALT
                              0.81 to 1.12Sizes: grain fines to 12 mm.
                              Moisture: variable to 5.5%.
                              White.
                              SALT CAKE
                              0.89 to 0.95Impure sodium sulphate. Used in ceramic glazes.
                              Granular. Moisture: none. White.
                              SALT ROCK
                              0.98 to 1.08Small granules.
                              Moisture: 0.02%. White.
                              SAND (FOUNDRY, QUARTZ, SILICA, POTASSIUM FELSPAR, SODA FELSPAR)
                              0.50 to 0.98Usually fine-particled. Abrasive. Used for a variety of purposes, including glass and steel making.
                              SCRAP METAL (see also ferrous metal borings, shavings, turnings, or cuttings, appendix B)
                              veriesVarious types of scrap metal, Engine blocks, etc. (When finely divided, see appendix B)
                              SEED CAKE
                              1.39 to 2.09Used mainly as animal feed or fertilizer.
                              Requires a certificate from a competent authority or shipper stating that requirements for exemption are met as set out in the entries for SEED CAKE (b) and (c) in appendix B.
                              SILICOMANGANESE (with no known hazard profile and less than 25% silicon)45°0.18 to 0.26Used as an additive in steel-making process, Size from fines to 300 mm.
                              SODA ASH (dense and light)
                              1.03 to 1.67Sodium carbonate.
                              Powdery. Moisture: 0% to20%. White
                              STAINLESS STEEL GRINDING DUST
                              0.42Caked, 75 mm to 380 mm lumps.
                              Moisture: 1% to 3% . Brown.
                              STONE CHIPPINGS
                              0.71Fines to 25 mm.
                              SUGAR (raw, raw brown, refined white)
                              1.00 to 1.50Powdery.
                              Moisture: 0% to 0.05%
                              SULPHATE OF POTASH AND MAGNESIUM
                              0.89 to 1.00Granular, light brown material. Solution in water is almost neutral. May have a slight odour, depending on the process of manufacture. Melting point: 72°C.
                              Moisture: 0.02%.
                              SUPERPHOSPHATE
                              0.84 to 1.00A fertilizer composed of phosphate treated with sulphuric acid. Granular, fines and powdery, up to 0.15 mm ***
                              Diameter in size. Moisture: 0% to 7%.
                              Greyishwhite.
                              SUPERPHOSPHATE, triple granular30° to 40°1.17 to 1.23Fine, free-flowing prills; very dusty. Hygroscopic and will cake and harden if wet. Contains acid and will decompose burlap or canvas cloth.
                              TACONITE PELLETS
                              1.53 to 1.67Ore. Round steel pellets, approximately 15 mm diameter. Moisture: 2%.
                              Grey.
                              TALC
                              0.64 to 0.73A natural hydrous magnesium silicate. Used in ceramics, electrical insulation, etc. Powdery to lumps 100 mm. Grey.
                              TAPIOCA32°1.36Dry, dusty mixture of powder and granules.
                              UREA28° to 45°1.17 to 1.56Fertilizer. Form: granules, beads and prills.
                              Dusty. Diameter: 1 mm to 3 mm.
                              Moisture: less than 1%.
                              VERMICULITE
                              1.37A mineral of the mica group. Used in Insulation and fire-proofing.
                              Size: approximately 3mm2
                              Average moisture: 6% to 10%. Grey.
                              WHITE QUARTZ
                              0.6199.6% silica content. Lumps varying in size up to 150 mm.
                              ZIRCON SAND
                              0.36Fine-particled material 60% less than 0.15 mm.*** Abrasive. Material is used for hardening steel. Shipped dry.


                              * For comprehensive information on transport of any material listed, refer to sections 1-10 of this Code.
                              ** 2.36 mm is nearest ISO screen size.
                              *** 0.15 mm is nearest ISO screen size.

                              Appendix D Laboratory test procedures, associated apparatus and standards

                              Ingangsdatum: 15-11-1979
                              Geldig tot en met: 02-12-2004

                              1 Test procedures for materials which may liquefy and associated apparatus


                              Three methods of testing for the transportable moisture limit (TML) are currently in general use:
                              .1 flow table test;
                              .2 penetration test;
                              .3 Proctor/Fagerberg test.
                              As each method has its advantages, the selection of the test method should be determined by local practices or by the appropriate authorities.

                              Ingangsdatum: 15-11-1979
                              Geldig tot en met: 02-12-2004

                              Three methods of testing for the transportable moisture limit (TML) are currently in general use:
                              .1 flow table test;
                              .2 penetration test;
                              .3 Proctor/Fagerberg test.
                              As each method has its advantages, the selection of the test method should be determined by local practices or by the appropriate authorities.

                              1.1 Flow table test procedure


                              D.1.1.1 Scope
                              The flow table is generally suitable for mineral concentrates or other fine material with a maximum grain size of 1 mm. It may also be applicable to materials with a maximum grain size up to 7 mm. It will not be suitable for materials coarser than this and may also not give satisfactory results for some materials with a high clay content. If the flow table test is not suitable for the material in question, the procedures to be adopted should be those approved by the authority of the port State.
                              The test described below provides for determination of:
                              .1 the moisture content of a sample of cargo, hereinafter referred to as the test material;
                              .2 the flow moisture point (FMP) of the test material under impact or cyclic forces of the flow table apparatus; and
                              .3 the transportable moisture limit of the test material.

                              D.1.1.2 Apparatus (see figure D.1.1.2)
                              .1 Standard flow table and frame (ASTM Designation (C230-68) - see D.3).


                              .2 Flow table mounting (ASTM Designation (C230-68) - see D.3).
                              .3 Mould (ASTM Designation (C230-68) - see D.3).
                              .4 Tamper (see figure D.1.1.2.4): the required tamping pressure may be achieved by using calibrated, spring-loaded tampers (examples are included in figure D.1.1.2.4) or some other suitable design of tamper that allows a controlled pressure to be applied via a 30 mm diameter tamper head.
                              .5 Scales and weights (ASTM Designation (C109-73) - see D.3) and suitable sample containers.
                              .6 Glass graduated measuring cylinder and burette having capacities of 100-200 .and 10 ., respectively.
                              .7 A hemispherical mixing bowl approximately 30 cm diameter, rubber gloves and drying dishes or pans. Alternatively, an automatic mixer of similar capacity can be used for the mixing operations. In this case, care should be exercised to ensure that the use of such a mechanical mixer does not reduce the particle size or consistency of the test material.
                              .8 A drying oven with controlled temperature up to approximately 110°C. This oven should be without air circulation.

                              D.1.1.3 Temperature and humidity
                              It is preferable to work in a room where the samples will be protected from excessive temperatures, air currents and humidity variations. All phases of the material preparation and testing procedure should be accomplished in a reasonable space of time to minimize moisture losses and, in any event, within the day of commencement. Where possible, sample containers should be covered with plastic film or other suitable cover.

                              D.1.1.4 Procedure
                              The quantity of material required for a flow moisture test will vary according to the specific gravity of the material to be tested. It will range from approximately 2 kg for coal to 3 kg for mineral concentrates. It should be collected as a representative sample of the cargo being shipped.
                              Experience has shown that more accurate test results will be obtained by ensuring that the moisture content of the test sample is increased rather than decreased towards the FMP. Consequently, it is recommended that a preliminary flow moisture test should be conducted, generally in accordance with the following, to indicate the condition of the test sample, i.e. the quantity of water and the rate at which it is to be added or whether the sample should be air-dried to reduce its moisture content before commencing the main flow moisture test.

                              D.1.1.4.1 Preparation of the test sample
                              The representative sample of test material is placed in the mixing bowl and thoroughly mixed. Three subsamples [(A), (B) and (C)] are removed from the mixing bowl as follows: about one fifth of the sample (A) should be immediately weighed and placed in the drying oven to determine the moisture content of the sample "as received". Two further subsamples, each of about two fifths of the gross weight, should then be taken, one (B) for the preliminary FMP test and the other (C) for the main FMP determination.
                              .1 "Filling the mould". The mould is placed on the centre of the flow table and filled in three stages with the material from the mixing bowl. The first charge, after tamping, should aim to fill the mould to approximately one third of its depth. The quantity of sample required to achieve this will vary from one material to another, but can readily be established after some experience has been gained of the packing characteristics of the material being tested. The second charge, after tamping, should fill the mould to about two thirds of its depth and the third and final charge, after tamping, should reach to just below the top of the mould (see figure D.1.1.4-2).
                              .2 "Tamping procedure". The aim of tamping is to attain a degree of compaction similar to that prevailing at the bottom of a shipboard cargo of the material being tested. The correct pressure to be applied is calculated from:
                              Tamping pressure (Pa) = Bulk density of cargo (kg/m3.)

                              x Maximum depth of cargo (m)

                              x Gravity acceleration (m/ s2).
                              Bulk density can be measured by a single test, using the Proctor C apparatus described in ASTM Standard D-698 or JIS-A-1210, on a sample of the cargo at the proposed moisture content of loading. When calculating the tamping pressure, if no information concerning cargo depth is available the maximum likely depth should be used. Alternatively, the pressure may be estimated from table D.1.1.4.1.



                              The number of tamping actions (applying the correct, steady pressure each time) should be about 35 for the bottom layer, 25 for the middle and 20 for the top layer, tamping successively over the area completely to the edges of the sample to achieve a uniformly flat surface for each layer.

                              .3 "Removal of the mould". The mould is tapped on its side until it becomes loose, leaving the sample in the shape of a truncated cone on the table.

                              D.1.1.4.2The preliminary flow moisture test

                              .1 Immediately after removing the mould, the flow table is raised and dropped up to 50 times through a height of 12.5 mm at a rate of 25 times per minute. If the material is below the FMP, it usually crumbles and bumps off in fragments with successive drops of the table (see figure D.1.1.4-3).

                              .2 At this stage, the flow table is stopped and the material returned to the mixing bowl, where 5-10 . of water, or possibly more, is sprinkled over the surface and thoroughly mixed into the material, either with rubber-gloved fingers or an automatic mixer. The mould is again filled and the flow table is operated as described in D.1.1.4.2.1 for up to 50 drops. If a flow state is not developed, the process is repeated with further additions of water until a flow state has been reached.

                              .3 "Identification of a flow state." The impacting action of the flow table causes the grains to rearrange themselves to produce compaction of the mass. As a result, the fixed volume of moisture contained in the material at any given level increases as a percentage of the total volume. A flow state is considered to have been reached when the moisture content and compaction of the sample produce a level of saturation such that plastic deformation occurs.* At this stage, the moulded sides of the sample may deform, giving a convex or concave profile (see figure D.1.1.4-4). With repeated action of the flow table, the sample continues to slump and to flow outwards. In certain materials, cracks may also develop on the top surface. Cracking, with the appearance of free moisture, is not, however, an indication of development of a flow state. In most cases, measurement of the deformation is helpful in deciding whether or not plastic flow has occurred. A template which, for example, will indicate an increase in diameter of up to 3 mm in any part of the cone is a useful guide for this purpose. Some additional observations may be useful. For example: when the (increasing) moisture content is approaching the FMP, the sample cone begins to show a tendency to stick to the mould.
                              Further, when the sample is pushed off the table, the sample may leave tracks (stripes) of moisture on the table. If such stripes are seen, the moisture content may be above the FMP: the absence of tracks (stripes) is not necessarily an indication of being below the FMP Measuring the diameter of the cone, at the base or at half height, will always be useful. By addition of water in increments of 0.4% to 0.5% and applying 25 drops of the flow table, the first diameter increase will generally be between 1 and 5 mm and after a further increment of water the base diameter will have expanded by between 5 and 10 mm.
                              ______________
                              * In certain conditions, the diameter of the cone may increase before the flow moisture point is reached, due to low friction between the grains rather than to plastic flow. This must not be mistaken for a flow state.

                              .4 As an alternative to the procedure described above, for many concentrates a fast way of finding the approximate FMP is as follows: When the moisture content is definitely beyond the FMP, measure the diameter after 25 drops, repeat the test after adding a further increment of water, measure the diameter and draw a diagram as illustrated in figure D.1.1.4-1, showing increase in diameter plotted against moisture content. A straight line drawn through the two points will cross the moisture content axis close to the FMP. Having completed the preliminary FMP test, the sample for the main test is adjusted to the required level of moisture content (about 1% to 2%) below the flow point.

                              D.1.1.4.3Main flow moisture test

                              When a flow state has been reached in the preliminary test, the moisture content of subsample (C) is adjusted to about 1% to 2% less than the last value which did not cause flow in the preliminary test (this is suggested simply to avoid starting the main test too close to the FMP and then having to waste time air-drying it and starting again). The final test is then carried out on this adjusted sample in the same manner as for the preliminary test, but in this case with the addition of water in increments of no more than 0.5% of the mass of the test material (the lower the "preliminary" FMP, the smaller the increments should be). After each stage, the whole moulded sample should be placed in a container, weighed immediately and retained for moisture determination if required. This will be necessary if the sample flowed or if the next, slightly wetter, sample flows. If not required it may be returned to the mixing bowl. When a flow state has been reached, the moisture content should be determined on two samples, one with a moisture content just above the FMP and the other with a moisture content just below the FMP. The difference between the two values should then be 0.5% or less, and the FMP is taken as the mean of these two values.





                              D.1.1.4.4 Determination of moisture content

                              Introduction

                              It should be noted that, for many materials, there are recognized international and national methods for determining moisture content. These methods, or ones that have been established to give equivalent results, should be followed.

                              Concentrates and similar materials

                              It is clearly important that the samples should be dried to a constant mass. In practice, this is ascertained after a suitable drying period at 105"C by weighing the sample successively with an interval of several hours elapsing. If the mass remains constant, drying has been completed, whereas if the mass is still decreasing, drying should be continued. The length of the drying period depends upon many variables, such as the disposition of the material in the oven, the type of container used, the particle size, the rate of heat transfer, etc. It may be that a period of five hours is ample for one concentrate sample, whereas it is not sufficient for another. Sulphide concentrates tend to oxidize, and therefore the use of drying ovens with air circulation systems is not recommended for these materials, nor should the test sample be left in the drying oven for more than four hours.

                              Coal

                              The recommended methods for determination of the moisture content are those described in ISO 589-1974, "Hard Coal -Determination of Total Moisture". This method, or ones that have been established to give equivalent results, should be followed.
                              Calculation of moisture content, FMP and transportable moisture limit:

                              1.2 Penetration test procedure

                              Ingangsdatum: 15-11-1979
                              Geldig tot en met: 02-12-2004

                              The penetration test constitutes a procedure whereby a material in a cylindrical vessel is vibrated. The flow moisture point is determined on the basis of the penetration depth of an indicator.

                              D.1.2.1 Scope
                              .1 The penetration test is generally suitable for mineral concentrates, similar materials, and coals up to a top size of 25 mm.
                              .2 In this procedure, the sample, in a cylindrical vessel, is subjected to vertical vibration of 2g rms ± 10% (g = gravity acceleration) for 6 minutes. When the penetration depth of a bit put on the surface exceeds 50 mm, it is judged that the sample contains a moisture greater than the flow moisture point.
                              .3 This procedure consists of a preliminary test to get an approximate value of the flow moisture point and a main test to determine the accurate flow moisture point. When the approximate value of the flow moisture point is known, the preliminary test can be omitted.
                              .4 The room where the samples are tested should be prepared as mentioned in D.1.1.3.

                              D.1.2.2 Apparatus (see figure D.1.2.2)
                              .1 The test apparatus consists of
                                (1) a vibrating table;
                                (2) cylindrical vessels;
                                (3) indicators (penetration bits and a holder);
                                (4) a tamper (see D.1.1.2.4); and
                                (5) ancillary equipment (see D.1.1.2.5 to .8).
                                .2 The vibrator (see figure D.1.2.2.2), with a table on which a cylindrical vessel can be clamped, should be capable of exciting a mass of 30 kg at a frequency of either 50 Hz or 60 Hz with an acceleration of 3g rms or more, and it can be controlled to adjust the acceleration level.
                                .3 Dimensions of cylindrical vessels (see figures D.1.2.2.3-1 and D.1.2.2.3-2) are as follows:

                                Cylinder size Inner diameter Depth Wall thickness
                                Small
                                large
                                146mm
                                194mm
                                202mm
                                252 mm
                                9.6mm or more
                                10.3mm or more

                                The vessels should be made of reasonably rigid, non-magnetic, impermeable and lightweight material such as acrylics or vinyl chloride. small cylindrical vessel is selected for the materials having a maximum particle size of 10 mm or less. The large cylindrical vessel is for those having a maximum particle size of 25 mm or less.
                                .4 Penetration bits (see figure D.1.2.2.4) are made of brass. The mass of the bit for coal should be adjusted to 88 g (5 kPa), and that for concentrates to 177 g (10 kPa). When the sample contains coarse particles, it is recommended that two bits of the same pressureare put on the surface to avoid misjudgment.
                                .5 A holder (see figure D.1.2.2.5) should be made to guide the rod of a bit with minimum friction to the centre of a cylindrical vessel. When two bits are used, they should be positioned in accordance with figure D.1.2.2.
                                .6 A cylindrical vessel and penetration indicators should be selected in accordance with the nature and condition of the test sample, viz. size of particles and bulk density.

                                D.1.2.3 Procedure

                                D.1.2.3.1 Preparation of the test sample and the vibrating table
                                .1 The quantity of the sample required is approximately six times or more the capacity of the selected cylindrical vessel. The amount of representative test sample with which each container is filled should be as follows: approximately 1700 .for the small container, and 4700 .for the large container.
                                .2 Mix the sample well and divide into three approximately equal subsamples, namely (A), (B)and(C). The subsample (A) should be immediately weighed and placed in the drying oven to determine the moisture content of the sample "as received". The subsamples (B) and (C) are used for the preliminary test and the main test, respectively.
                                .3 The vibration level of the vibrating table should be calibrated, using an acceleration meter, prior to carrying out testing. The acceleration of the table should be adjusted to 2g rms ± 10% with a container filled with a sample mounted on the table.

                                D.1.2.3.2 Preliminary flow moisture test
                                This test is intended to measure quickly the approximate flow moisture point, using subsample (B). Water is added in increments after every penetration test. When a flow state has been reached, the moisture content of the sample just above the flow state is measured. The moisture content of the sample just below the flow state can be calculated by deducting the increment of water last added from the gross mass of the sample.
                                .1 Fill the appropriate cylindrical vessel with subsample (B) in four distinct stages and tamp after the addition of each layer using a specified tamper. Tamp to a pressure denoted in D.1.1.4.1 for mineral concentrates or to 40 kPa for coals, and apply the pressure evenly over the whole surface area of the material until a uniformly flat surface is obtained.
                                .2 Place the penetration bit on the surface of the material through the holder.
                                .3 Operate the vibrator at a frequency of 50 .or 60 .with an acceleration of 2g rms ± 10% for 6 minutes. If necessary, the acceleration level should be checked by referring to the output of the acceleration meter attached to the vibrating table.
                                .4 After 6 minutes of vibration, read the depth of penetration.
                                .5 When the depth of penetration is less than 50 mm, it is judged that liquefaction did not take place. Then, (1) Remove the material from the cylindrical vessel and replace in the mixing bowl with the remainder of the sample. (2) Mix well and weigh the contents of the mixing bowl. (3) Sprinkle an increment of water of not more than 1% of the mass of the material in the bowl and mix well. (4) Repeat the procedure described in D.1.2.3.2.1 to D.1.2.3.2.5. .6 When the depth of penetration is greater than 50 mm, it is judged that liquefaction took place. Then,
                                  (1) Remove the material from the cylindrical vessel and replace in the mixing bowl.
                                  (2) Measure the moisture content in accordance with the procedure described in D.1.1.4.4.
                                  (3) Calculate the moisture content of the sample just below the flow moisture point on the basis of the amount of water added. .7 If the penetration depth in the first attempt exceeds 50 mm, i.e. the sample as received liquefied, mix subsamples (B) and (C) and dry at room temperature to reduce the moisture. Then, divide the material into two subsamples (B) and (C), and repeat the preliminary test.

                                  D.1.2.3.3 The main flow moisture test
                                  .1 On the basis of the preliminary test, the main test should be carried out to determine the flow moisture point more accurately.
                                  .2 Adjust the moisture content of the subsample (C) to the last value which did not cause flow inthe preliminary flow moisture test.
                                  .3 The first test of the main flow moisture test is carried out on this adjusted sample in the same manner as described in D.1.2.3.2. In this case, however, the addition of water in increments should not be more than 0.5% of the mass of the test material.
                                  .4 When the approximate value of the flow moisture point is known in advance, the moisture content of the subsample (C) is adjusted to approximately 90% of this value.
                                  .5 When a flow state has been reached, the flow moisture point is determined as described in D.1.1.4.3.





                                  1.3 Proctor/Fagerberg test procedure

                                  Ingangsdatum: 15-11-1979
                                  Geldig tot en met: 02-12-2004

                                  D.1.3.1 Scope
                                  .1 Test method for both fine and relatively coarse-grained ore concentrates or similar materials up to a top size of 5 mm. This method should not be used for coal or other porous materials.
                                  .2 Before the Proctor/Fagerberg test is applied to coarser materials with a top size greater than 5 mm, an extensive investigation for adoption and improvement is required.
                                  .3 The transportable moisture limit (TML) of a cargo is taken as equal to the critical moisture content at 70% degree of saturation according to the Proctor/Fagerberg method test.

                                  D.1.3.2 Proctor/Fagerberg test equipment
                                  .1 The Proctor apparatus (see figure D.1.3.2) consists of a cylindrical iron mould with a removable extension piece (the compaction cylinder) and a compaction tool guided by a pipe open at its lower end (the compaction hammer).
                                  .2 Scales and weights (see D.3.2) and suitable sample containers.
                                  .3 A drying oven with a controlled temperature interval from 100&degC to maximum 105&degC. This oven should be without air circulation.
                                  .4 A suitable mixer. Care should be taken to ensure that the use of the mixer does not reduce the particle size or consistency of the test material.
                                  .5 Equipment to determine the density of the solid material, for example a pycnometer.



                                  D.1.3.3 Temperature and humidity (see D.1.1.3)

                                  D.1.3.4 Procedure
                                  .1 "Establishment of a complete compaction curve". A representative sample according to a relevant standard (see 4.6 of section 4) of the test material is dried at a temperature of approximately 100°C. The total quantity of the test material should be at least three times as big as required for the complete test sequence. Compaction tests are executed for five to ten different moisture contents (five to ten separate tests). The samples are adjusted in order that dry to almost saturated (plastic) samples are obtained. The required quantity per compaction test is about 2000 cm3. At each compaction test a suitable amount of water is added to the sample of the dried test material and mixed thoroughly for 5 minutes. Approximately one fifth of the mixed sample is filled into the mould and levelled and then the increment is tamped uniformly over the surface of the increment. Tamping is executed by dropping the hammer 25 times through the guide pipe, 0.2 m each time. The performance is repeated for all five layers. When the last layer has been tamped the extension piece is removed and the sample is levelled off along the brim of the mould. When the weight of the cylinder with the tamped sample has been determined, the cylinder is emptied, the sample is dried and the weight is determined. The test then is repeated for the other samples with different moisture contents.
                                  .2 Definitions and data for calculations (see figure D.1.3.4.2)
                                  • empty cylinder, mass in grams: A
                                  • cylinder with tamped sample, mass in grams: B
                                  • wet sample, mass in grams: C
                                    C = B - A
                                  • dry sample, mass in grams: D
                                  • water, mass in grams (equivalent to volume in cm3): E
                                    E = C - D
                                  • volume of cylinder: 1000 cm3
                                  .3 Calculation of main characteristics
                                  • density of solid material, g/cm3(t/m3): d
                                  • dry bulk density, g/cm3(t/m3): γ
                                    γ = D / 1000
                                  • net water content, volume %: e
                                    ev= E/D x 100 x d
                                  • void ratio: e (volume of voids divided by volume of solids)
                                    e = (1000d - D) / D = d/r - 1
                                  • degree of saturation, percentage by volume: S
                                    S = ev / e
                                  • gross water content, percentage by mass: W 1
                                    W 1= E/D x 100
                                  • net water content, percentage by mass: W
                                    W= E/D x 100
                                  .4 Presentation of the compaction tests
                                  For each compaction test the calculated void ratio (e) value is plotted as the ordinate in a diagram with net water content ( e v ) and degree of saturation (S) as the respective abscissa parameters.



                                  .5 Compaction curve
                                  The test sequence results in a specific compaction curve (see figure D.1.3.4.5). The critical moisture content is indicated by the intersection of the compaction curve and the line S =70% degree of saturation. The transportable moisture limit (TML) is the critical moisture content.

                                  2 Test procedures to determine the angle of repose and associated apparatus

                                  Ingangsdatum: 15-11-1979
                                  Geldig tot en met: 02-12-2004

                                  2.1 Determination of angle of repose of fine-grained materials (size less than 10 mm): "tilting box test". For use in laboratory or port of loading

                                  Ingangsdatum: 15-11-1979
                                  Geldig tot en met: 02-12-2004

                                  D.2.1.1 Scope
                                  The test provides for the determination of the angle of repose of fine-grained non-cohesive materials (size less than 10 mm). The results so obtained may be used when interpreting sections 5 and 6 of this Code for the materials in question.

                                  D.2.1.2 Definition
                                  The angle of repose obtained by this test is the angle formed between the horizontal and the top of the test box when the material in the box just begins to slide in bulk.

                                  D.2.1.3 Principle of test
                                  When measuring the angle of repose by this method, the material surface should initially be level and parallel to the test box base. The box is tilted without vibration and tilting is stopped when the product just begins to slide in bulk.

                                  D.2.1.4 Apparatus (see figure D.2.1.4)



                                  Apparatus is as follows:
                                  .1 A framework, on top of which is attached an open box. Attachment of the box to the frame is by means of a shaft passing through bearings affixed to both the frame and the end of the box, enabling the box to be subjected to a controlled tilt.
                                  .2 The dimensions of the box are 600mm long, 400mm wide and 200mm high.
                                  .3 To prevent sliding of the material along the bottom of the box during tilting, a tightly fitting grating (openings 30mm x 30mm x 25mm) is placed on the bottom of the box before filling.
                                  .4 Tilting of the box is effected by a hydraulic cylinder fitted between the frame and the bottom of the box. Other means may be used to obtain the required tilting but in all cases vibration must be eliminated.
                                  .5 To pressurize the hydraulic cylinder, a hydropneumatic accumulator may be used, pressurized by air or gas at a pressure of about 5 kp/cm².
                                  .6 The rate of tilting should be approximately 0.3°/s.
                                  .7 Range of tilt should be at least 50°.

                                  .8 A protractor is fitted to the end of the shaft. One lever of the protractor is fitted so that it may be screw-adjusted to the horizontal.
                                  .9 The protractor should measure the angle of the top of the box to the horizontal to within an accuracy of 0.5° .
                                  .10 A spirit level or some other levelling device should be available to zero the protractor.

                                  D.2.1.5 Procedure
                                  The box is filled with the material to be tested by pouring it slowly and carefully from the lowest practical height into the box in order to obtain uniformity of loading.
                                  The excess material is scraped off with the aid of a straight edge, inclined at about 45° towards the direction of scraping.
                                  The tilting system is then activated and stopped when the material just begins to slide in bulk. The angle of the top of the box to the horizontal is measured by the protractor and recorded.

                                  D.2.1.6 Evaluation
                                  The angle of repose is calculated as the mean of three measurements and is reported to within half a degree.

                                  Notes : Preferably the test should be carried out with three independent samples. Care should be taken to ensure that the shaft is adjusted to be horizontal before testing.

                                  2.2 Alternative or shipboard test method to be used for the determination of the angle of repose when the tilting box is not available

                                  Ingangsdatum: 15-11-1979
                                  Geldig tot en met: 02-12-2004

                                  D.2.2.1 Definition
                                  According to this method the angle of repose is the angle between the cone slope and the horizontal measured at half height.

                                  D.2.2.2 Principle of test
                                  To determine the angle of repose, a quantity of the material to be tested is poured very carefully out of a flask onto a sheet of rough-textured paper, in such a way that a symmetrical cone is formed.

                                  D.2.2.3 Equipment
                                  The necessary equipment to carry out this test is as follows:
                                  - a horizontal table free from vibrations;
                                  - a sheet of rough-textured paper onto which the material should be poured;
                                  - a protractor; and
                                  - a 3 litre conical flask.

                                  D.2.2.4 Procedure
                                  Put the sheet of paper on the table. Split 10 l of the material to be tested into three subsamples and test each in the following way:
                                  Pour two thirds of the subsample (i.e. 2 l) onto the sheet, producing a starting cone. The remainder of this subsample is then poured very carefully from a height of a few millimetres on top of the Cone. Care should be taken that the cone will be built up symmetrically. This may be achieved by revolving the flask slowly close around the top of the cone when pouring.
                                  When measuring, care should be taken that the protractor does not touch the cone, otherwise this may result in sliding of the material and spoil the test.
                                  The angle has to be measured at four places around the cone, about 90 degrees apart. This test should be repeated on the other two subsamples.

                                  D.2.2.5 Calculations
                                  The angle of repose is taken as the mean of the 12 measurements and is reported to half a degree. This figure can be converted to the tilting box value as follows:
                                    a L = a s+ 3° (D.2.2.5) where a L = angle of repose according to the tilting box text
                                    a s = angle of repose according to the survey test

                                    3 Standards used in test procedures

                                    Ingangsdatum: 15-11-1979
                                    Geldig tot en met: 02-12-2004

                                    3.1 Standard flow table and frame *

                                    Ingangsdatum: 15-11-1979
                                    Geldig tot en met: 02-12-2004

                                    * Source: "Standard Specification for Flow Table for Use in Tests of Hydraulic Cement", Designation C230-68. Reprinted by permission of American Society for Testing and Materials (ASTM), 1916 Race Street, Philadelphia, Penn., USA, copyright ASTM 1977.


                                    D.3.1.1 Flow table and frame

                                    D.3.1.1.1 The flow table apparatus shall be constructed in accordance with figure D.3. The apparatus shall consist of an integrally cast rigid iron frame and a circular rigid table top, 10 inches ± 0.1 inch (254mm ± 2.5mm) in diameter, with a shaft attached perpendicular to the table top by means of a screw thread. The table top to which the shaft with its integral contact shoulder is attached, shall be mounted on a frame in such a manner that it can be raised and dropped vertically through the specified height, with a tolerance in height of ± 0.005 inches (0.13mm) for new tables and ± 0.015 inches (0.39mm) for tables in use, by means of a rotated cam. The table top shall have a fine machined plane surface, free of blowholes and surface defects, and shall be scribed as shown in figure D.3. The table top shall be of cast brass or bronze having a Rockwell hardness number not less than HRB 25 with an edge thickness of 0.3 inches (8mm), and shall have six integral radial stiffening ribs. The table top and attached shaft shall weigh 9 lb ± 0.1 lb (4 kg ± 0.05 kg) and the weight shall be symmetrical around the centre of the shaft.

                                    D.3.1.1.2 The cam and vertical shaft shall be of medium-carbon machinery steel, hardened where indicated in figure D.3. The shaft shall be straight and the difference between the diameter of the shaft and the diameter of the bore of the frame shall be not less than 0.002 inches (0.05mm) and not more than 0.003 inches (0.08mm) for new tables and shall be maintained at from 0.002 inches to 0.010 inches (0.26mm) for tables in use. The end of the shaft shall not fall upon the cam at the end of the drop, but shall make contact with the cam not less than 120° from the point of drop. The face of the cam shall be a smooth spiralled curve of uniformly increasing radius from ½ inch to 1 ¾ inches (13mm to 32mm) in 360° and there shall be no appreciable jar as the shaft comes into contact with the cam. The cam shall be so located and the contact faces of the cam and shaft shall be such that the table does not rotate more than one revolution in 25 drops. The surfaces of the frame and of the table which come into contact at the end of the drop shall be maintained smooth, plane, and horizontal and parallel with the upper surface of the table and shall make continuous contact over a full 360°.

                                    D.3.1.1.3 The supporting frame of the flow table shall be integrally cast of fine-grained, highgrade cast iron. The frame casting shall have three integral stiffening ribs extending the full height of the frame and located 120° apart. The top of the frame shall be chilled to a depth of approximately ¼ inch (6.4mm) and the face shall be ground and lapped square with the bore to give 360° contact with the shaft shoulder. The underside of the base of the frame shall be ground to secure a complete contact with the steel plate beneath.

                                    D.3.1.1.4 The flow table may be driven by a motor1, connected to the camshaft through an enclosed worm gear speed reducer and flexible coupling. The speed of the camshaft shall be approximately 100 rpm. The motor drive mechanism shall not be fastened or mounted on the table base plate or frame. The performance of a flow table shall be considered satisfactory if, in calibration tests, the table gives a flow value that does not differ by more than 5 percentage points from flow values obtained with a suitable calibration material. 2

                                    D.3.1.2 Flow table mounting

                                    D.3.1.2.1 The flow table frame shall be tightly bolted to a cast iron or steel plate at least 1 inch (25mm) thick and 10 inches (250mm) square. The top surface of this plate shall be machined to a smooth plane surface. The plate shall be anchored to the top of a concrete pedestal by four ½ inch (13mm) bolts that pass through the plate and are embedded at least 6 inches (150mm) in the pedestal. The pedestal shall be cast inverted on the base plate. A positive contact between the base plate and the pedestal shall be obtained at all points. No nuts or other such levelling devices shall be used between the plate and the pedestal. Levelling shall be effected by suitable means under the base of the pedestal.

                                    D.3.1.2.2 The pedestal shall be 10 inches to 11 inches (250mm to 275mm) square at the top, and 15 inches to 16 inches (375mm to 400mm) square at the bottom, 25 inches to 30 inches (625mm to 750mm) in height, and shall be of monolithic construction, cast from concrete weighing at least 140 lb/ft3 (2240 kg/m2). A stable gasket cork pad, ½ inch (13mm) thick and approximately 4 inches (102mm) square, shall be inserted under each corner of the pedestal. The flow table shall be checked frequently for levelness of the table top, stability of the pedestal, and tightness of the bolts and nuts in the table base and the pedestal plate. (A torque of 20 lb ft (27 N m) is recommended when tightening those fastenings.)

                                    D.3.1.2.3 The table top, after the frame has been mounted on the pedestal, shall be level along two diameters at right angles to each other, in both the raised and lowered positions.

                                    D.3.1.3 Flow table lubrication

                                    D.3.1.3.1 The vertical shaft of the table shall be kept clean and shall be lightly lubricated with a light oil (SAE-10). Oil shall not be present between the contact faces of the table top and the supporting frame. Oil on the cam face will lessen wear and promote smoothness of operation. The table should be raised and permitted to drop a dozen or more times just prior to use if it has not been operated for some time.

                                    D.3.1.4 Mould

                                    D.3.1.4.1 The mould for casting the flow specimen shall be of cast bronze or brass, constructed as shown in figure D.3. The Rockwell hardness number of the metal shall be not less than HRB 25. The diameter of the top opening shall be 2.75 inches± 0.02 inches (69.8mm ± 0.5mm) for new moulds and 2.75 inches + 0.05 inches (+ 1.3mm) and - 0.02 inches for moulds in use.
                                    The surfaces of the base and top shall be parallel and at right angles to the vertical axis of the cone. The mould shall have a minimum wall thickness of 0.2 inches (5mm). The outside of the top edge of the mould shall be shaped so as to provide an integral collar for convenient lifting of the mould.
                                    All surfaces shall be machined to a smooth finish. A circular shield approximately 10 inches (254mm) in diameter, with a centre opening approximately 4 inches (102mm) in diameter, made of nonabsorbing material not attacked by the cement, shall be used with the flow mould to prevent mortar from spilling on the table top.


                                    1 A 1/20 ap (40 W) motor has been found adequate. The flow table may be driven by a hand-operated camshaft as shown in the illustration.
                                    2 Such a material may be obtained from the Cement and Concrete Reference Laboratory at the National Bureau of Standards, Washington, D.C. 20234, USA.

                                    3.2 Scales and weights *

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                                    D.3.2.1 Scales

                                    D.3.2.1.1 The scales used shall conform to the following requirements. On scales in use, the permissible variation at a load of 2000 g shall be ± 2.0 g. The permissible variation on new scales shall be one half of this value. The sensibility reciprocal ** shall be not greater than twice the permissible variation.

                                    D.3.2.2 Weights

                                    D.3.2.2.1 The permissible variations on weights shall be as prescribed in the table below. The permissible variations on new weights shall be one half of the values in the table below.

                                    PERMISSIBLE VARIATIONS ON WEIGHTS

                                    Weight (g)

                                    Permissible variations on weights
                                    in use, plus or minus (g)
                                    1000......................................................................................... 0.50
                                    900......................................................................................... 0.45
                                    750......................................................................................... 0.40
                                    500......................................................................................... 0.35
                                    300......................................................................................... 0.30
                                    250......................................................................................... 0.25
                                    200......................................................................................... 0.20
                                    100......................................................................................... 0.15
                                    50......................................................................................... 0.10
                                    20......................................................................................... 0.05
                                    10......................................................................................... 0.04
                                    5......................................................................................... 0.03
                                    2......................................................................................... 0.02
                                    1......................................................................................... 0.01





                                    * Source, "Standard Method of Test for Compressive Strength of Hydraulic Cement Mortars", Designation C109-D3. Reprinted by permission of American Society for Testing and Materials (ASTM), 1916 Race Street, Philadelphia, Penn., USA, copyright ASTM 1977.
                                    ** Generally defined, the sensibility reciprocal is the change in load required to change the position of rest of the indicating element or elements of a non-automatic indicating scale a definite amount at any load. For a more complete definition, see "Specifications, Tolerances, and Regulations for Commercial Weighing and Measuring Devices", Handbook H44, National Bureau of Standards, Washington, D.C., USA, September 1949, pp. 92 and 93.

                                    4 Trough test for determination of the self-substained exothermic decomposition of fertilizers containing nitrates*



                                    * Source: IMDG Code, pages 9005-9009.

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                                    * Source: IMDG Code, pages 9005-9009.

                                    4.1 Definition

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                                    A fertilizer capable of self-sustaining decomposition is defined as one in which decomposition initiated in a localized area will spread throughout the mass. The tendency of a fertilizer offered for transport to undergo this type of decomposition can be determined by means of the trough test. In this test localized decomposition is initiated in a bed of the fertilizer to be contained in a horizontally mounted trough. The amount of propagation, after removal of the initiating heat source, of decomposition through the mass is measured.

                                    4.2 Apparatus and materials

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                                    The apparatus (figure D.4-1) consists of a trough of internal dimensions 150mm x 150mm x 500mm, open at the top. The trough is constructed of square-meshed gauze (preferably stainless steel) with a mesh width of about 1.5 ‡oand a wire thickness of 1.0 ‡osupported on a frame made from, for example, 15mm wide, 2mm thick steel bars. The gauze at each end of the trough may be replaced by 1.5mm thick, 150mm x 150mm stainless steel plates. The trough should be rested on a suitable support. Fertilizers with a particle size distribution such that a significant amount falls through the mesh of the trough should be tested in a trough of smaller mesh gauze, or alternatively in a trough lined with gauze of a smaller mesh. During initiation sufficient heat should be provided and maintained to establish a uniform decomposition front. Two alternative methods are recommended, viz:



                                    D.4.2.1 Electrical heating
                                    An electrical heating element (capacity 250 W) enclosed in a stainless steel box is placed inside and at one end of the trough (figure D.4-2). The dimensions of the stainless steel box are 145mm x 145mm x 10mm, and the wall thickness is 3mm. The side of the box which is not in contact with the fertilizer should be protected with a heat shield (insulation plate 5mm thick). The heating side of the box may be protected with aluminium foil or a stainless steel plate.

                                    D.4.2.2 Gas burners
                                    A steel plate (thickness 1mm to 3mm) is placed inside one end of the trough and in contact with the wire gauze (figure D.4-1). The plate is heated by means of two burners which are fixed to the trough support and are capable of maintaining the plate at temperatures between 400°C and 600°C, i.e. dull red heat.

                                    D.4.2.3 1 To prevent heat transport along the outside of the trough, a heat shield consisting of a steel plate (2mm thick) should be installed at about 50mm from the end of the trough where the heating takes place.

                                    D.4.2.4 The life of the apparatus may be prolonged if it is constructed of stainless steel throughout. This is particularly important in the case of the gauze trough.

                                    D.4.2.5 Propagation may be measured using thermocouples in the substance and recording the time at which a sudden temperature rise occurs as the reaction front reaches the thermocouple.

                                    4.3 Procedure

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                                    D.4.3.1 The apparatus should be set up under a fume hood to remove toxic decomposition gases or in an open area where the fumes can be readily dispersed. Although there is no explosion risk, when performing the test it is advisable to have a protective shield, e.g. of suitable transparent plastics, between the observer and the apparatus.

                                    D.4.3.2 The trough is filled with the fertilizer in the form to be offered for shipment and decomposition is initiated at one end, either electrically or by means of gas burners as described above. Heating should be continued until decomposition of the fertilizer is well established and propagation of the front (over approximately 30mm to 50mm) has been observed. In the case of products with high thermal stability, it may be necessary to continue heating for two hours. If fertilizers show a tendency to melt, the heating should be done with care, i.e. using a small flame.

                                    D.4.3.3 About 20 minutes after the heating has been discontinued, the position of the decomposition front is noted. The front can be observed by difference in colour, e.g. brown (undecomposed fertilizer) to white (decomposed fertilizer), or by the temperature indicated by adjacent pairs of thermocouples which bracket the reaction front. The rate of propagation may be determined by observation and timing or from thermocouple records. It should be noted whether there is no propagation after heating is discontinued or whether propagation occurs throughout the substance. A graph of the progression of the decomposition front along the trough against time is then prepared, and the propagation rate (cm/h) is obtained from the graph, using the portion where the rate is constant.

                                    4.4 Test criteria and method of assessing results

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                                    D.4.4.1 If propagation of the decomposition continues throughout the substance the fertilizer is considered capable of showing self-sustaining decomposition.

                                    D.4.4.2 If propagation does not continue throughout the substance, the fertilizer is considered to be free from the hazard of self-sustaining decomposition as this depends on the chemical species present.

                                    5 Description of the test of resistance to detonation


                                    D.5.1 The test must be carried out on a representative sample of the material. Before being tested for resistance to detonation, the whole mass of the sample is to be thermally cycled at least two and not more than five times.

                                    D.5.2 The material must be subjected to the test of resistance to detonation in a horizontal steel tube under the following conditions:
                                    Seamless steel tube

                                    Tube length1000mm

                                    Nominal external diameter

                                    114mm

                                    Nominal wall thickness

                                    5mm

                                    Booster

                                    The type and mass of the booster chosen should be such as to maximize the detonation pressure applied to the sample in order to determine its susceptibility to the transmission of detonation

                                    Test temperature

                                    15°C to 25°C

                                    Witness lead cylinders for
                                    detecting detonation

                                    50mm diameter
                                    100mm high
                                    placed at 150mm intervals and supporting the tube horizontally.


                                    The test is to be carried out twice. The test is deemed conclusive if in both tests one or more of the supporting lead cylinders is crushed by less than 5%.

                                    Ingangsdatum: 15-11-1979
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                                    D.5.1 The test must be carried out on a representative sample of the material. Before being tested for resistance to detonation, the whole mass of the sample is to be thermally cycled at least two and not more than five times.

                                    D.5.2 The material must be subjected to the test of resistance to detonation in a horizontal steel tube under the following conditions:
                                    Seamless steel tube

                                    Tube length1000mm

                                    Nominal external diameter

                                    114mm

                                    Nominal wall thickness

                                    5mm

                                    Booster

                                    The type and mass of the booster chosen should be such as to maximize the detonation pressure applied to the sample in order to determine its susceptibility to the transmission of detonation

                                    Test temperature

                                    15°C to 25°C

                                    Witness lead cylinders for
                                    detecting detonation

                                    50mm diameter
                                    100mm high
                                    placed at 150mm intervals and supporting the tube horizontally.


                                    The test is to be carried out twice. The test is deemed conclusive if in both tests one or more of the supporting lead cylinders is crushed by less than 5%.

                                    5 Description of the Test of Resistance to Detonation

                                    Ingangsdatum: 01-06-2000
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                                    D.5.1 Principle

                                    D.5.1.1 The test sample is confined in a steel tube and subjected to detonation shock from an explosive booster charge. Propagation of the detonation is determined from the degree of compression of lead cylinders on which the tube rests horizontally during the test.

                                    D.5.2 Sample Preparation

                                    D.5.2.1 The test must be carried out on a representative sample of material. Before being tested for resistance to detonation, the whole mass of the sample is to be thermally cycled five times between 25°C and 50°C (+/-1°C) in sealed tubes. The sample shall be maintained at the extreme temperatures, measured at the centre of the sample, for at least 1 hour during each thermal cycle and at 20°C (+/- 3°C) after complete cycling until tested.

                                    D.5.3 Materials

                                    Seamless steel tube to ISO 65-1981-Heavy or equivalent.

                                    Tube length 1000 mm

                                    Nominal external diameter 114 mm

                                    Nominal wall thickness 5 to 6.5 mm

                                    Bottom plate (160 x 160 mm) of good weldable quality, thickness 5 to 6 mm to be butt-welded to one end of the tube around the entire circumference.

                                    Initiation system and booster

                                    Electrical blasting cap or detonating cord with non-metallic sleeve (10 to 13 g/m).

                                    Compressed pellet of secondary explosive, such as hexogen/wax 95/5 or tetryl, with a central recess to take the detonator.

                                    500 ± 1 gram plastic explosive containing 83 to 86 % penthrite, formed into a cylinder in a cardboard or plastic tube. Detonation velocity 7300-7700 m/s.

                                    Six witness cylinders of refined, cast lead for detecting detonation.

                                    50 mm diameter x 100 mm high, refined lead of at least 99.5% purity.

                                    D.5.4 Procedure

                                    Test Temperature: 15 to 20°C. Figures 1 and 2 show the test arrangement.

                                    Fill the tube about one-third of its height with the test sample and drop it 10 cm vertically five times on the floor. Improve the compression by striking the side wall with a hammer between drops. A further addition shall be made such that, after compaction or by raising and dropping the tube 20 times and a total of 20 intermittent hammer blows, the charge fills the tube to a distance of 70 mm from its orifice.

                                    Insert the plastic explosive into the tube and press it down with a wooden die. Place the compressed pallet centrally in the recess within the plastic explosive. Close it with a wooden disc so that it remains in contact with the test sample. Lay the test tube horizontally on the 6 lead cylinders placed at 150 mm intervals (centric), with the centre of the last cylinder 75 mm from the bottom plate, on a firm, level, solid surface that is resistant to deformation or displacement. Insert the electrical blasting cap or the detonating cord.

                                    Ensure that all necessary safety precautions are taken, connect and detonate the explosive.

                                    Record, for each of the lead cylinders, the degree of compression expressed as a percentage of the original height of 100 mm. For oblique compression, the deformation is taken as the average of the maximum and minimum deformation.

                                    D.5.5 Results

                                    The test is to be carried out twice. If in each test one or more of the supporting lead cylinders are crushed by less than 5% the sample is deemed to satisfy the resistance to detonation requirements.



                                    6 Self-heating test for charcoal

                                    Ingangsdatum: 15-11-1979
                                    Geldig tot en met: 02-12-2004

                                    D.6.1 Apparatus

                                    D.6.1.1 "Oven". A laboratory oven fitted with internal air circulation and capable of being controlled at 140°C ± 2°C.

                                    D.6.1.2 "Wire mesh cube". Construct an open-top cube, 100mm side, from phosphor bronze gauze 18,000 mesh per square centimetre (350 x 350 mesh). Insert it inside a slightly larger, well-fitting cube, made of phosphor bronze gauze 11 mesh per square centimetre (8 x 8 mesh). Fit the outer cube with a handle or hooks so that it can be suspended from above.

                                    D.6.1.3 "Temperature measurement". A suitable system to measure and record the temperature of the oven and in the centre of the cube. "Chromel-alumel" thermocouples, made from 0.27mm diameter wire, are suitable for measuring the temperature range expected.

                                    D.6.2 Procedure

                                    D.6.2.1 Fill the cube with carbon and tap down gently, adding carbon until the cube is full. Suspend the sample in the centre of the oven which has been preheated to 140°C ± 2°C. Insert one of the thermocouples in the centre of the sample and the other between the cube and the oven wall. Maintain the temperature of the oven at 140°C ± 2°C for 12 hours and record the oven temperature and the sample temperature.

                                    D.6.3 Results

                                    D.6.3.1 Non-activated carbon, non-activated charcoal, carbon black and lamp black fail the test if the temperature at any time during the 12 hours exceeded 200°C.

                                    D.6.3.2 Activated carbon and activated charcoal fail the test if the temperature at any time during the 12 hours exceeded 400°C.

                                    Appendix E Emergency schedules (EmS) for materials listed in appendix B

                                    Ingangsdatum: 15-11-1979
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                                    1 Introduction

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                                    1.1 Ships' masters and officers trained in fire-fighting techniques are frequently unsure of the best action to take when solid bulk cargoes of a chemical nature are involved. For this reason emergency schedules have been prepared to cover the materials described in appendix B to this Code, i.e. materials possessing chemical hazards when carried in bulk. Each individual entry refers to an emergency schedule which relates to an emergency response action for that material.

                                    1.2 Conditions at sea differ markedly from those on land, and ships' masters are restricted by the special emergency equipment available on board and their inability to summon specialist assistance normally readily available ashore. Therefore, emergency procedures are recommended which are simple and concise and afford the maximum safety for crews. However, the phrasing is such as to permit the master to use his discretion in interpreting the recommendations.

                                    2 Explanatory notes

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                                    2.1 section 1 Schedule no. and application

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                                    2.1.1 The materials listed on each schedule are those presently included in appendix B to this Code. However, this list is not exhaustive.

                                    2.2 section 2 Special emergency equipment to be carried

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                                    2.2.1 All ships carrying materials possessing chemical hazards when carried in bulk should carry a sufficient number of sets of protective clothing, self-contained breathing apparatus and spray jets for dealing with emergencies and which may be additional to statutory requirements.

                                    2.2.2 Protective clothing varies in its resistance to various chemicals and the clothing provided should be suitable for the substances being carried. The manufacturer's recommendations concerning suitability for various materials should be followed. Other clothing of reasonable thickness does, however, afford some protection, even if the cloth itself may be attacked. All contaminated clothing should be cleaned or disposed of safely after use.

                                    2.3 section 3 Emergency procedures

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                                    2.3.1 This section deals with the preparation of the emergency team prior to dealing with an incident.

                                    2.3.2 The advice given assumes that when, for example, it is required to batten down, no excessive amount of smoke is likely to be present, and also assumes that the action would normally be carried out on a weather deck. Whenever a material involved in a fire is likely to give off toxic, irritating or corrosive fumes, the wearing of breathing apparatus has been advised.

                                    2.3.3 Breathing apparatus should always be used if it is necessary to enter an enclosed or confined space.

                                    2.4 section 4 Emergency action

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                                    2.4.1 The schedules are developed primarily for the use of ships at sea, and are intended to indicate recommended action when a bulk material is on fire or directly involved in a fire.

                                    2.4.2 Generally, when a bulk material is directly involved in a fire the best action is to batten down to exclude all air from the cargo space. For materials possessing chemical hazards there are notable exceptions to this practice, e.g. ammonium nitrate fertilizers.

                                    2.4.3 Many ships carrying bulk materials have no fixed fire- fighting installation in the cargo spaces, and this is allowed for in the schedules.

                                    2.4.4 The use of water for fire-fighting is only recommended for those materials for which neither exclusion of air nor the use of the ship's fixed fire-fighting installation is effective.

                                    2.5 section 5 Medical first aid


                                    2.5.1 With regard to first-aid treatment, reference is made in the schedules to the Medical First Aid Guide for Use in Accidents Involving Dangerous Goods (MFAG).

                                    2.5.2 In the event of any dangerous materials coming in contact with the skin and particularly the eyes, then the affected areas should be immediately washed with copious quantities of water for 10 to 15 minutes.
                                    Ingangsdatum: 15-11-1979
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                                    2.5.1 With regard to first-aid treatment, reference is made in the schedules to the Medical First Aid Guide for Use in Accidents Involving Dangerous Goods (MFAG).

                                    2.5.2 In the event of any dangerous materials coming in contact with the skin and particularly the eyes, then the affected areas should be immediately washed with copious quantities of water for 10 to 15 minutes.
                                    A Emergency schedule B1
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                                    B Emergency schedule B2
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                                    C Emergency schedule B3
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                                    D Emergency schedule B4
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                                    E Emergency schedule B5
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                                    F Emergency schedule B6
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                                    G Emergency schedule B7
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                                    H Emergency schedule B8
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                                    I Emergency schedule B9
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                                    J Emergency schedule B10
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                                    K Emergency schedule B11
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                                    L Emergency schedule B12
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                                    M Emergency schedule B13
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                                    N Emergency schedule B14
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                                    O Emergency schedule B15
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                                    Appendix F Recommendations for entering cargo spaces, tanks, pump-rooms, fuel tanks, cofferdams, duct keels, ballast tanks and similar enclosed compartments

                                    Ingangsdatum: 15-11-1979
                                    Geldig tot en met: 27-11-1997

                                    1 Introduction

                                    [Niet geldig (geldigheid van 1979-11-15 tot en met 1997-11-27)]

                                    2 Potential hazards

                                    [Niet geldig (geldigheid van 1979-11-15 tot en met 1997-11-27)]

                                    3 Materials liable to cause oxygen depletion

                                    [Niet geldig (geldigheid van 1979-11-15 tot en met 1997-11-27)]

                                    4 General precautions

                                    [Niet geldig (geldigheid van 1979-11-15 tot en met 1997-11-27)]

                                    5 Special requirements

                                    [Niet geldig (geldigheid van 1979-11-15 tot en met 1997-11-27)]

                                    6 Safety checklist

                                    [Niet geldig (geldigheid van 1979-11-15 tot en met 1997-11-27)]

                                    Appendix G Procedures for gas monitoring of coal cargoes

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                                    1 Observations

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                                    Carbon monoxide monitoring, when conducted in accordance with the following recommendations, will provide a reliable early indication of self-heating within a coal cargo. This allows preventive action to be considered without delay. A steady rise in the level of carbon monoxide detected within a hold is a conclusive indication that self-heating is taking place. All vessels engaged in the carriage of coal should carry on board an instrument for measuring methane, oxygen and carbon monoxide gas concentrations (general requirements for all coals, section 3.3 in the coal entry, Appendix B), so that the atmosphere within the cargo space may be monitored. This instrument should be regularly serviced and calibrated in accordance with the manufacturer's instructions. When properly maintained and operated, this instrument will provide reliable data about the atmosphere within the cargo space. Care needs to be exercised in interpreting methane measurements carried out in the low oxygen concentrations often found in unventilated cargo holds. The catalytic sensors normally used for the detection of methane rely on the presence of sufficient oxygen for accurate measurement. This phenomenon does not affect the measurement of carbon monoxide, or measurement of methane by infrared sensor. Further guidance may be obtained from the instrument manufacturer.

                                    2 Sampling and measurement procedure

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                                    G.2.1 Equipment
                                    An instrument is required which is capable of measuring methane, oxygen and carbon monoxide concentrations. The instrument should be fitted with an aspirator, flexible connection and a length of tubing to enable a representative sample to be obtained from within the square of the hatch. Stainless steel tubing approximately 0.5 m in length and 5 mm nominal internal diameter with an integral stainless steel threaded collar is preferred. The collar is necessary to provide an adequate seal at the sampling point.
                                    A suitable filter should be used to protect the instrument against the ingress of moisture will compromise the accuracy of the measurement.

                                    G.2.2 Siting of sampling points
                                    In order to obtain meaningful information about the behaviour of coal in a hold, gas measurements should be made via one sample point per hold. To ensure flexibility of measurement in adverse weather, two sampling points should be provided per hold, one on the port side and one on the starboard side of the hatch cover (refer figure G.2.7).
                                    Measurement from either of these locations is satisfactory. each sample point should comprise a hole of diameter approximately 12 mm positioned as near to the top of the hatch comings as possible. It should be sealed with a screw cap to prevent ingress of water and air. It is essential that this cap is securely replaced after each measurement to maintain a tight seal.
                                    The provision of any sample point should not compromise the seaworthiness of the vessel.

                                    G.2.3 Measurement
                                    Ensure that the instrument is calibrated and working properly in accordance with the manufacturer's instructions. Remove the sealing cap, insert the stainless steel tube into sample point and tighten the integral cap to ensure an adequate seal. Connect the instrument to the sampling tube. Draw a sample of the hold atmosphere through the tube using the aspirator until steady readings are obtained. Log the results on a form which records cargo hold, date and time for each measurement.

                                    G.2.4 Measurement strategy The identification of incipient self heating from measurement of gas concentrations is more readily achieved under unventilated conditions. This is not always desirable because of the possibility of the accumulation of methane to dangerous concentrations. This is primarily, but not exclusively, a problem in the early stages of a voyage. Therefore it is recommended that holds are initially ventilated until measured methane concentrations are at an acceptably low level. Appendix G

                                    G.2.5 Measurement in unventilated holds
                                    Under normal conditions one measurement per day is sufficient as a precautionary measure. However, if carbon monoxide levels are higher than 30 ppm then the frequency should be increased to at least twice a day at suitably spaced intervals. Any additional results should be logged.
                                    If the carbon monoxide level in any hold reaches 50 ppm a self-heating condition may be developing and the owners of the vessel should be notified.

                                    G.2.6 Measurement in ventilated holds
                                    If the presence of methane is such that the ventilators are required to remain open, then a different procedure should be applied to enable the onset of any incipient self-heating to be detected.
                                    To obtain meaningful data the ventilators should be closed for a period before the measurement are taken. This period may be chosen to suit the operational requirements of the vessel, but it is recommended that it is not less than four hours. It is vital in the interests of data interpretation that the shutdown time is constant whichever time period is selected. These measurements should be taken on a daily basis. If the carbon monoxide results exhibit a steady rise over three consecutive days, or exceed 50 ppm on any day, the owners of the vessel should be notified.

                                    3 Figure G.2.7

                                    Ingangsdatum: 15-11-1979
                                    Geldig tot en met: 02-12-2004

                                    Diagram gas sampling point

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