Practical scope: it can be used for electric fire, liquid fire or melting solid fire, solid surface fire and gas fire which can cut off the gas source before fire fighting. It is mainly used in electronic computer room, communication machine room, power distribution room, oil-immersed transformer room, self-provided power generating machine room, library, archives room, museum, bill, cultural relic database, etc.
Note: mixed gas extinguishing agent should not be used to extinguish class D active metal fire