3 Discharge range test
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC.1/Circular.1315 – Guidelines for the Approval of Fixed Dry Chemical Powder Fire-Extinguishing Systems for the Protection of Ships Carrying Liquefied Gases in Bulk – (10 June 2009) - Annex – Guidelines for the Approval of Fixed Dry Chemical Powder Fire-Extinguishing Systems for the Protection of Ships Carrying Liquefied Gases in Bulk - Appendix – Approval Tests - 3 Discharge range test

3 Discharge range test

 Dry chemical powder monitors should have a minimum discharge range as follows:

Monitor flow rate Minimum range
10 kg/s 10 m
25 kg/s 30 m
45 kg/s 40 m

For monitors with a discharge rate between the above listed values, the minimum range should be determined by interpolation. The test should be conducted with the monitor positioned horizontally, 1 m above the floor. The monitor should be capable of achieving the minimum range for at least 40 s of the 45 s discharge.

Parent topic: Appendix – Approval Tests
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