题目内容
(请给出正确答案)
[填空题]
硫化氢的阈限值为ppm,硫化氢的安全临界浓度为:()ppm,硫化氢的危险临界浓度为:()ppm。
答案
暂无答案
第4题
A.阈限值
B.安全临界浓度
C.危险临界浓度
D.4.3ppm以下
第8题
A.15mg/m3(10ppm)
B.30mg/m3(20ppm)
C.150mg/m3(100ppm)
第9题
A.5ppm(7.5mg/m3)
B.10ppm(15mg/m3)
C.15ppm(22.5mg/m3)
D.20ppm(30mg/m3)