A.15mg/m3(10ppm)
B.30mg/m3(20ppm)
C.75mg/m3(50ppm)
D.150mg/m3(100ppm)
A.一级报警值应设置在10ppm
B.三级报警值应设置在100ppm
C.二级报警值应设置在20ppm
D.二级报警值应设置在10ppm
A.立即安排专人观察风向、风速以便确定受侵害的危险区
B.切断危险区的不防爆电器的电源
C.安排专人佩戴正压式空气呼吸器到危险区检查泄漏点
D.非作业人员撤入安全区
E.协助地方政府撤离居、牧民
A.15mg/m3(10ppm)
B.30mg/m3(20ppm)
C.150mg/m3(100ppm)
D.75mg/m3(50ppm)