4 Criteria for Qualifying Products as “Fire-Restricting Materials”
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.40(64) - Standard for Qualifying Marine Materials for High Speed Craft as Fire-Restricting Materials - (adopted on 5 December 1994) - Annex - Standard for Qualifying Marine Materials for High Speed Craft as Fire-Restricting Materials - 4 Criteria for Qualifying Products as “Fire-Restricting Materials”

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 m2 /s;

  • .4 the maximum value of the smoke production rate does not exceed 8.3 m2 /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 (tig ) is greater than 20 s;

  • .2 the maximum 30-second sliding average heat release rate (HRR30,max) does not exceed 60 kW/m2 ;

  • .3 the total heat release (THR) does not exceed 20 MJ/m2 ;

  • .4 the time average smoke production rate (SPRavg ) does not exceed 0.005 m2 /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)."

Parent topic: Annex - Standard for Qualifying Marine Materials for High Speed Craft as Fire-Restricting Materials
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