FIELD: fire safety; chemistry.
SUBSTANCE: invention relates to concentrate foam composition for fire fighting, which forms a water film on fire-hazardous liquid. Composition contains a zwitterionic or anionic monomeric C6perfluoroalkyl surfactant having molecular weight less than 800 Da, a foam stabilising agent, and at least one non-fluorinated surfactant. Composition contains a reduced amount of fluorine 0.8 % and practically does not contain any surfactant containing a perfluoroalkyl group having more than 6 carbon atoms. Also disclosed is fire-extinguishing foam, containing a concentrate, and method of producing foam.
EFFECT: composition contains a reduced amount of fluorine; meets military specifications of USA (MIL-F-24385F), UK and corresponding standards set by European Union.
31 cl, 2 tbl, 5 ex
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