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NOTE: This is an unformatted excerpt from our online fire protection training library.

Introduction to Clean Agents

Clean Agents Utilized

Classification of Clean Agents

Clean agents are classified by the relative importance of the three main mechanisms utilized in causing extinguishment.

1. Inert gaseous agents do not undergo any decomposition reactions. They depend upon their high heat capacity and the displacement of oxygen to cause extinguishment.

2. Halocarbon agents undergo decomposition reactions in the presence of a fire. The large amount of energy absorbed to cause the decomposition of the agent is responsible for the lower agent concentration requirements of these agents. The classification name is derived from the fully and partially halogenated hydrocarbon compounds that comprise this group.

3. Chemical agents are a sub-category of the halocarbon agents and have further reduced concentration requirements due to the interference in the combustion reaction caused by the radicals formed during their decomposition.
NOTE: This is an unformatted excerpt from our online fire protection training library.

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