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扑灭B类物质初起火灾的灭火器,有干粉、卤代烷、轻水泡沫、二氧化碳、四氯化碳和化学泡沫等灭火器。扑灭C类物质初起火灾的灭火器,除不能使用化学泡沫灭火器外,其他均与B类灭火器相同。在B、C类灭火器中,四氯化碳灭火器,已逐渐淘汰;新型轻水泡沫灭火器,因成本较高,尚未推广使用。现将BC干粉灭火器、“1211”灭火器、二氧化碳灭火器的性能和使用方法分述如下:
Fire extinguishing devices that extinguish Category B substances from the initial fire include dryers, alkyl halides, light water foam, carbon dioxide, carbon tetrachloride and chemical foam fire extinguishers. Extinguishing Class C fire extinguishers, other than the use of chemical foam fire extinguishers, the others are the same as Class B fire extinguishers. Among B and C fire extinguishers, carbon tetrachloride fire extinguishers have been gradually phased out. The new light water foam fire extinguishers have not been widely used due to their high cost. Now BC dry powder fire extinguishers, “1211 ” fire extinguishers, carbon dioxide fire extinguishers performance and methods of use are described below: