A.氧氣檢測(cè)報(bào)警儀 B.有毒氣體檢測(cè)報(bào)警儀 C.可燃?xì)怏w檢測(cè)報(bào)警儀 D.四合一檢測(cè)報(bào)警儀
A.5MPa B.5.5MPa C.6MPa D.5.5±0.5MPa
A.氧含量為19.5%~23.5% B.氧含量小于19.5%或大于23.5% C.可燃性氣體、蒸氣濃度大于爆炸下限(LEL)的10% D.有毒有害氣體、蒸氣濃度大于GBZ2.1規(guī)定的限值