FIELD: fire-fighting means.
SUBSTANCE: invention refers to fire-fighting chemical agents, particularly to gas compositions of chemically active substances for prevention of methane-air mixture ignition and explosion in industrial, transport and welfare facilities. As an inhibitor, the composition contains trifluoromethane of chemical formula CHF3 in the ratio to carbon dioxide as 1:3, provided introduction of the inhibitor in the protected volume in an amount not less than 5.5 vol. %.
EFFECT: gas composition provides assured prevention of methane-air mixture ignition and explosion in the closed spaces, rooms in all the concentration of methane and from any means of initiation.
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Authors
Dates
2011-10-10—Published
2010-02-10—Filed