Fire Extinguisher Types (cont.)
Class “A”, “B”, or “C” fires (smaller sizes ineffective against Class “A”).
9-17 lb. Halon 1211 (pressurized liquid) released as vapor (8-18 seconds discharge time).
Has pressure gauge to allow visual capacity check.
9-16 ft. maximum effective range.
Works best in confined area--ideal for electronics fire due to lack of residue.
Extinguishes by smothering burning materials.
Halon is ozone depleting chemical--production halted in Jan ‘94.