Onderwerp: Bezoek-historie

104(49) Guidelines for brief sampling of anti-fouling systems on ships
Geldigheid:27-07-2003 t/m 09-06-2022Versie:vergelijk Status: Was geldig

Dit onderwerp bevat de volgende rubrieken.


RECALLING Article 38(a) of the Convention on the International Maritime Organization concerning the functions of the Marine Environment Protection Committee conferred upon it by the international conventions for the prevention and control of marine pollution,

RECALLING ALSO that the International Conference on the Control of Harmful Anti-fouling Systems for Ships, 2001, held in October 2001, adopted the International Convention on the Control of Harmful Anti-fouling Systems on Ships, 2001 (the AFS Convention) together with four Conference resolutions,

NOTING that article 11(1) of the AFS Convention prescribes that ships to which this Convention applies may, in any port, shipyard, or offshore terminal of a Party, be inspected by officers authorized by that Party for the purpose of determining whether the ship is in compliance with this Convention, and that such inspection includes brief sampling of the ship.s anti-fouling system,

NOTING ALSO that article 11(1) of the AFS Convention refers to the guidelines to be developed by the Organization and Conference resolution 2 urges the Organization to develop these guidelines as a matter of urgency for them to be adopted before the entry into force of the Convention,

NOTING FURTHER that through resolutions MEPC.102(48) and MEPC.105(49) the Organization has developed .Guidelines for Survey and Certification of Anti-fouling Systems on Ships. and .Guidelines for Inspection of Anti-fouling Systems on Ships., respectively, and

HAVING CONSIDERED the recommendation made by the Sub-Committee on Flag State Implementation at its eleventh session,

1. ADOPTS the Guidelines for brief sampling of anti-fouling systems on ships, the text of which is set out in the Annex to this resolution;

2. INVITES Governments to apply the Guidelines as soon as possible, or when the Convention becomes applicable to them; and

3. RECOMMENDS that the Guidelines be reviewed on a regular basis.

Annex Guidelines for brief sampling of anti-fouling systems on ships

1 General


1.1 Article 11 of the International Convention on the Control of Harmful Anti-fouling Systems on Ships, 2001, hereinafter referred to as .the Convention., and resolution MEPC.102(48) Guidelines for Survey and Certification of Anti-Fouling Systems on Ships refer to sampling as a method of verification of compliance of a ships anti fouling system with the Convention for inspection and survey.

1.2 The .Guidelines for Brief Sampling of Anti-Fouling Systems on Ships., hereinafter referred to as .the Guidelines., provide procedures for sampling to support the effectiveness of survey and inspection to ensure that a ship.s anti-fouling system complies with the Convention and thus assists:
    .1 Administrations and recognized organizations (ROs) in the uniform application of the provisions of the Convention;

    .2 port State control officers with guidance on methods and handling of brief sampling in accordance with Article 11(1)(b) of the Convention; and

    .3 companies, shipbuilders, manufacturers of anti-fouling systems, as well as any other interested parties in understanding the process of sampling as required in terms of the Convention.
      1.3 However, inspections or surveys do not necessarily always need to include sampling of anti-fouling system.

      1.4 These Guidelines apply to surveys and inspections of ships subject to the Convention.

      1.5 The sole purpose of the sampling activities described in the Guidelines is to verify compliance with the provisions of the Convention. Consequently, such activities do not relate to any aspect not regulated by the Convention, (even if such aspects relate to the performance of an anti-fouling system on the hull of a ship, including the quality of workmanship). Structure of these Guidelines

      1.6 These Guidelines contain:
        .1 a main body covering aspects of general nature common to .sampling. procedures related to the regulation of anti-fouling systems controlled by the Convention; and

        .2 appendices describing the unique procedures associated with the sampling and analysis of anti-fouling systems controlled by the Convention. These appendices only serve as examples of sampling and analytical methods and other sampling methods not described in an appendix may be used subject to the satisfaction of the Administration or the port State, as appropriate. 1.7 For reasons including the event of other anti-fouling systems becoming controlled under the Convention, or in the light of new experience acquired, these Guidelines may need to be reviewed or amended in the future.

        2 Definitions

        For the purposes of these Guidelines:

        2.1 .Administration. means the Government of the State under whose authority the ship is operating. With respect to a ship entitled to fly a flag of a State, the Administration is the Government of that State. With respect to fixed or floating platforms engaged in exploration and exploitation of the sea-bed and subsoil thereof adjacent to the coast over which the coastal State exercises sovereign rights for the purposes of exploration and exploitation of their natural resources, the Administration is the Government of the coastal State concerned.

        2.2 .Anti-fouling system. means a coating, paint, surface treatment, surface or device that is used on a ship in order to control or prevent attachment of unwanted organisms.

        2.3 .Threshold value. means the concentration limit of the chemical under investigation below which compliance with the relevant provisions of the Convention may be assumed.

        2.4 .Company. means the owner of the ship or any other organization or person such as the manager or the bareboat charterer, who has assumed the responsibility for the operation of the ship from the owner of the ship and who, on assuming such responsibility, has agreed to take over all duties and responsibilities imposed by the International Safety Management (ISM) Code.

        2.5 .Length. means the length as defined in the International Convention on Load Lines, 1966, as modified by the Protocol of 1988 relating thereto, or any successor Convention.

        2.6 .Tolerance range. means the numerical range added to the threshold value indicating the range where detected concentrations above the threshold value are acceptable due to recognised analytical inaccuracy and thus do not compromise the assumption of complianc

        3 Personnel safety when sampling


        3.1 Persons carrying out sampling should be aware that solvents or other materials used for sampling may be harmful. Wet paint which is sampled may also be harmful. In these cases the material safety data sheet (MSDS) for the solvent or paint should be read and appropriate precautions should be taken. This will normally include the wearing of long sleeve solvent resistant gloves of suitable impervious material - e.g. nitrile rubber.

        3.2 Quantities of dry anti-fouling paint removed during sampling from ships. hulls will normally be too small to cause significant health effects. Safety

        3.3 Access to ships to carry out sampling safely may be difficult. If a ship is moored alongside persons carrying out sampling must ensure they have safe access to reach the hull from e.g. platforms, crane baskets, cherry-pickers, gangways. They must ensure that they are protected by railings or a climbing harness or take other precautions so that they cannot fall into the water between the quay and the ship. If in doubt a lifejacket and possibly a safety line, should be worn when sampling.

        3.4 Access to ships in dry-dock should be made by secure means. Scaffolding should be securely constructed and cherry-pickers or dock-arms should be properly constructed and maintained if they are to be used to gain access. There should be a system to record the presence of the inspector in the dock area, and he should preferably be accompanied. Safety harnesses should be worn in cherry-picker baskets, if used.

        4 Sampling and Analysis

        Sampling methods

        4.1 During sampling, care should be taken not to affect the integrity or operation of the anti-fouling system.

        4.2 Sampling where the anti-fouling coating is visibly damaged1 or on block mark areas on the flat bottom of the ship (where the intact anti-fouling system is not applied) should be avoided. Sampling adjacent to or below areas where the anti-fouling system is damaged should also be avoided. When a sample point on the hull has been selected, any fouling present should be removed with water and a soft sponge/cloth before taking a specimen of the anti-fouling system (to avoid contamination of sample). Where possible, if carried out in dry-dock, sampling should be carried out after the hull has been water-washed.

        4.3 The materials required for brief sampling methodologies should ideally be inexpensive, widely available and therefore readily accessible, irrespective of sampling conditions and/or location.

        4.4 The sampling procedure should ideally be easily and reliably undertaken. Persons conducting sampling should receive appropriate training in sampling methods.

        Technical aspects

        4.5 The sampling method should take into account the type of anti-fouling system used on the ship.

        4.6 Specimens of paint for analysis during survey and certification can be taken either as wet paint2 from product containers, or dry paint film sampled from the hull.

        Sampling strategy and number of samples

        4.7 The sampling strategy is dependent on the precision of the sampling method, the analytical requirements, costs and required time and the purpose of the sampling. The number of paint specimens taken of each sample should allow for a retention quantity for back-up/storage in the event of a dispute. For dry samples, triplicate specimens of paint at each sampling point should be taken in close proximity to each other on the hull (e.g. within 10 cm of each other).

        4.8 In cases where it is recognized that more than one type of anti-fouling system is present on the hull, where access can be gained, samples should be taken from each type of system:

        .1 for survey purposes or for more thorough inspections pursuant to article 11(2) of the Convention, in order to verify the compliance of an anti-fouling system, the number of sample points should reflect representative areas of the ship.s hull; and

        .2 for inspection purposes pursuant to article 11(1) of the Convention sample points on the hull should be selected covering representative areas where the anti-fouling system is intact. Depending on the size of the vessel and accessibility to the hull, at least four sample points should be equally spaced down the length of the hull. If sampling is undertaken in dry-dock, flat bottom areas of the hull should be sampled in addition to vertical sides as different anti-fouling systems can be present on these different areas.


        4.9 The analysis of the anti-fouling system should ideally involve minimal analytical effort and economic cost.

        4.10 The analysis should be conducted by a recognized laboratory meeting the ISO 17025 standard or another appropriate facility at the discretion of the Administration or the port State.

        4.11 The analytical process should be expeditious, such that results are rapidly communicated to the officers authorized to enforce the Convention.

        4.12 The analysis should produce unambiguous results expressed in units consistent with the Convention and its associated Guidelines. For example, for organotin, results should be expressed as: mg tin (Sn) per kg of dry paint.

        NOTE: Compound-specific sampling and analytical methodologies are described in the appendices to these Guidelines.

        1 During in-service periods, anti-fouling coatings on ships. hulls often become damaged. The extent of damage varies between ships and damaged areas can be visually recognised. Typically damage can be restricted to localised areas e.g. anchor chain damage (bow region), fender damage (vertical sides of hull), .rust through areas. (underlying rust causing coating failure) or in some cases be in smaller areas scattered over larger areas of the hull (usually older ships where over-coating of original system has taken place many times).

        2 In order to prevent contamination, wet paint samples should be taken from a newly opened container. Paint should be stirred to ensure even consistency before sampling and all equipment used should be cleaned prior to use. Liquid paint samples should be stored in appropriate sealed packaging which will not react with or contaminate the sample. In the case of multi-component coatings (where on-site mixing of several components is required prior to application), samples of each component should be taken and the required mixing ratio recorded. When a sample of wet paint is taken from a container, details of the paint should be recorded e.g. details required for the IAFS Certificate along with a batch number for the product.

        5 Thresholds and tolerance limits


        5.1 The analysis should be quantitative to the point of being able to accurately verify the threshold limits within the given tolerance.

        5.2 In cases where compliance with acceptable limits, or lack thereof, is unclear, additional sampling or other methodologies for sampling should be considered.

        Tolerance range

        5.3 Statistical reliability for each (compound-specific) brief sampling procedure should be documented. The analysis should be quantitative to the point of being able to accurately verify the threshold limits within the given tolerance. On the basis of these data a compound-specific tolerance range should be derived and stated compound-specific in the method description. In general, the tolerance range should not be higher than the standard deviation under typical conditions for testing and should under no circumstances go beyond 30 %.

        6 Definition of compliance

        6.1 Compliance with Annex 1 of the Convention is assumed if the anti-fouling system contains organotin at a level which does not provide a biocidal effct . In practice organotin compounds should not be present above 2,500 mg organotin (measured as Sn) per kg of dry paint.

        6.2 Compliance is largely dependent on the results of sampling and subsequent analysis. As every method of sampling and analysis has its specific accuracy, a compound-specific tolerance level may be applied in borderline cases with concentrations very close to the threshold level.

        6.3 In general, compliance is assumed when the samples yield results below the threshold value.

        7 Documentation and recording of information

        7.1 The results of the sampling procedure should be fully documented on a method-specific record sheet. Examples are provided in the appendices to these Guidelines.

        7.2 Such record sheets should be completed by the sampler and should be submitted to the competent authority of the Port State or Administratio

        Appendix Possible methods for brief sampling and analysis of anti-fouling systems on ships

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