Ingangsdatum: 22-05-1999
1 SCOPE AND FIELD OF APPLICATION1.1 This standard specifies a procedure
to be used in assessing materials as meeting the requirements for "fire-restricting
materials" as laid down in the International Code of Safety for High Speed Craft.
1.2 "Fire-restricting materials" are
defined in 7.2.2 of the Code.
1.3 Surface
materials on bulkheads, wall and ceiling linings, including their supporting
structure should be tested to the standard ISO 9705 as described in section 2.
Bulkhead, wall and ceiling linings should be tested in their end-use configuration,
including any surface finish materials.
1.4 Materials used for furniture and other components should be tested to
the standard ISO 5660 as described in section 2. (This does not include vertically
supported textiles and films, upholstery, or bedding which should be tested in
accordance with the Fire Test Procedures Code.)
1.5 In the case of combustible insulation materials that are protected by
metallic skins or identifiable as a separate item, the insulation should be tested
without the surface protection.
2 TEST
PROCEDURE2.1 Tests for bulkhead, wall and ceiling
linings should be performed according to the standard ISO 9705, the room/corner
test. This standard gives alternatives for choice of ignition source and sample
mounting technique. For the purpose of testing products to be qualified as
’fire-restricting materials’, the following should apply:
.1 ignition source: Standard ignition source according to
annex A of the standard ISO 9705, i.e. 100 kW heat output for 10 min and thereafter
300 kW heat output for another 10 min. Total testing time should be 20 min; and
.2 specimen mounting: Standard specimen
configuration according to annex G of the standard ISO 9705, i.e. the product is
mounted both on walls and ceiling of the test room. The product should be tested
complying to end use conditions, including any surface finish materials or other
surface treatments.
2.2 Tests for
materials used for furniture and components other than room linings should be
performed according to the standard ISO 5660, the Cone Calorimeter Test. For the
purpose of testing products to be qualified as "fire-restricting materials", the
following test conditions should apply. Three test specimens should be prepared and
tested in accordance with standard ISO 5660-1 (time to ignition and heat release)
and the standard ISO 5660-2 (smoke production). The specimen should be
representative of the end use conditions of the material, including any surface
finishes. A sample edge frame should be used in all tests. Irradiance level should
be set at 50 kW/m for all three tests. The test should be terminated when 20 min
have elapsed since the 2 start of exposure. Data should be collected for an
additional 2 min after the end of a test to ensure that data are available for the
entire test duration after time-shifting to account for delay times of part of the
instrumentation.
3 CALCULATION OF THE
PARAMETERS CALLED FOR IN THE CRITERIA3.1 The maximum values of smoke
production rate at the start and the end of the test should be calculated as
follows: For the first 30s of testing, use also values prior to ignition of the
ignition source, i.e. zero rate of smoke production, when calculating average. For
the last 30s of testing, use the measured value at 20 min, assign that to another
30s and calculate the average.
3.2 The
maximum heat release rate(HRR) should be calculated at the start and the end of the
test using the same principles as for averaging the smoke production rate.
3.3 The time averages of smoke production
rate and HRR should be calculated using actual measured values that are not already
averaged as described above.
4 CRITERIA FOR
QUALIFYING PRODUCTS AS "FIRE-RESTRICTING MATERIALS"4.1 Surface materials on bulkheads, wall
and ceiling linings including their supporting structure are considered to be a
"fire-restricting material" if during testing time of 20 min according to the
standard ISO 9705 as qualified in paragraph 2.1, the following six criteria are met:
.1 the time average of heat release
rate (HRR) excluding the HRR from the ignition source does not exceed 100 kW;
.2 the maximum HRR excluding the HRR from
the ignition source does not exceed 500 kW averaged over any 30 s period of time
during the test;
.3 the time average of
the smoke production rate does not exceed 1.4 m
2 /s;
.4 the maximum value of the smoke production rate does
not exceed 8.3 m
2 /s averaged over any period of 60 s during the test;
.5 flame spread should not reach any
further down the walls of the test room than 0.5 m from the floor excluding the area
which is within 1.2 m from the corner where the ignition source is located; and
.6 no flaming drops or debris of the test
sample may reach the floor of the test room outside the area which is within 1.2 m
from the corner where the ignition source is located.
4.2 Materials used for furniture and other components are
considered to be "fire-restricting material" if during testing to the standard ISO
5660 as described in paragraph 2.2, the following four criteria are fulfilled:
.1 the time to ignition (t
ig )
is greater than 20 s;
.2 the maximum
30-second sliding average heat release rate (HRR
30,max ) does not exceed
60 kW/m
2 ;
.3 the total heat
release (THR) does not exceed 20 MJ/m
2 ;
.4 the time average smoke production rate (SPR
avg
) does not exceed 0.005 m
2 /s.
4.3 Materials which qualify as "fire-restricting materials" using the
standard ISO 9705 test method described in this annex may be used for furniture or
other components if the material closely represents the configuration tested as a
room lining in it’s actual end use (i.e. similar thickness and surface
finish).