Ingangsdatum: 05-12-1994
Geldig tot en met: 21-05-1999
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 The standards for
compliance are applicable to surface materials on bulkheads, wall and ceiling linings
including their supporting structure as considered necessary as stated in 7.2.3 of the
Code.
1.4 Fire-restricting materials used
for furniture and other components should be tested to ISO 5660.
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 PROCEDURETest should be performed according to the standard ISO9705, 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 in ISO 9705, i.e. 100 kW heat output for 10 min
and thereafter 300 kW heat output for another 10 min. Total testing time is 20 min;
and .2 Specimen mounting: Standard specimen configuration according to annex G in 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.
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"A surface material or lining is considered to be
"fire-restricting material" if during testing time of 20min according to the standard
ISO 9705 as qualified in paragraph 2 of this annex, the following six criteria are
fulfilled:
.1 the time average of HRR
excluding the HRR from the ignition source dose not exceed 100kW;
.2 the maximum HRR excluding the HRR from the ignition
source dose not exceed 500kW average over any 30s 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 60s during the test;
.5 flame spread must 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.