题目内容
(请给出正确答案)
[单选题]
用10PPm的硫化氢样气校验MSA-580型H2S检测仪,仪表指示应为()mg/m³。(H2S分子量为34.07)
A.10
B.14
C.7.2
D.34
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A.10
B.14
C.7.2
D.34
A.甲烷LEL:40%,硫化氢:10PPM,氧气:低于50%高于80%
B.甲烷LEL:20%,硫化氢:20PPM,氧气:低于24%高于30%
C.甲烷LEL:10%,硫化氢:5PPM,氧气:低于20%高于32%
D.甲烷LEL:10%,硫化氢:5PPM,氧气:低于19.5%高于23.5%
A.0.13ppm—4.6ppm
B.3ppm—10ppm
C.10ppm—20ppm
D.30ppm—100ppm
A.15mg/m3(10ppm)
B.30mg/m3(20ppm)
C.150mg/m3(100ppm)
A.阈限值为硫化氢检测的一级报警值
B.H 2 S的阈限值为10ppm
C.H 2 S的阈限值为20ppm
D.H 2 S的阈限值为30ppm
E.10ppm等于15mg/m³