Abstract
During full-scale fire suppression tests, halon replacement agents (HFC-227ea and HCFC Blend A) were observed to produce an increased quantity of carbon monoxide (CO), in addition to the production of halogenated compounds. Agent-flame interaction resulted in the increased CO production in the fire tests. CO inhalation has been considered as an important cause of incapacitation in many fire incidents. Therefore, future risk assessment of potential exposure to toxic gases generated during fire suppression using halon replacements should include not only the toxic effect of halogenated compounds but also the toxic effect of CO and their combination.
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