Acid gas (hydrogen fluoride) production from Halon 1301 and alternative gaseous fire suppressants – A Review

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Authors
  1. Hiltz, J.A.
Corporate Authors
Defence Research and Development Canada, Atlantic Research Centre, Halifax NS (CAN)
Abstract
Halon 1301 (CF3Br) is used as a total flooding fire suppression gas on Royal Canadian Navy ships and submarines. Because it is an ozone depleting substance it will not be used on new build naval vessels. There are a number of non-ozone depleting gaseous agents that have been evaluated as alternatives for Halon 1301 for use in normally occupied spaces. These include FE-13 (HFC-23 or CHF3), NAF-S111 (HCFC Blend), FM-200 (HFC-227ea or CF3CHFCF3, PFC-410 or CEA 410 (C4F10), and Novec 1230 (1,1,1,2,2,4,5,5,5-nonafluoro-4-trifluoromethylpentan-3-one). A concern associated with all these gaseous agents is the release of acid gases such as hydrogen fluoride (HF) when they are exposed to high temperatures and hot surfaces. The concentrations of an acid gas such as HF will have a direct impact on the risks to firefighters during re-entry procedures.

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Keywords
fire suppression;gaseous fire suppressants;Halon 1301;alternative gaseous agents;acid gas
Report Number
DRDC-RDDC-2015-R036 — Scientific Report
Date of publication
01 Mar 2015
Number of Pages
36
DSTKIM No
CA040819
CANDIS No
801872
Format(s):
Electronic Document(PDF)

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