Which is the proper method of determining whether a portable CO2 fire extinguisher needs recharging?()

A . Check the tag to see when the extinguisher was last charged B . Release a small amount of CO ; if the CO discharges,the extinguisher is acceptable C . Weigh the extinguisher and compare the weight against that stamped on the valve D . Recharge the extinguisher at least once each year

时间:2022-09-20 07:43:41 所属题库:海上搜索题库

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