3 Calculation of the Parameters Called for in the Criteria
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 - 3 Calculation of the Parameters Called for in the Criteria

3 Calculation of the Parameters Called for in the Criteria

  3.1 The maximum values of smoke production rate at the start and the end of the test should be calculated as follows: For the first 30 s 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 30 s of testing, use the measured value at 20 min, assign that to another 30 s up to 20 min and 30 s 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.

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