Toxic gas detector alarm point
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This post was last edited by zhoudingshengs on 2023-11-13 at 16:11. Discussion: What are the primary and secondary alarm levels in ppm for toxic gas detectors of benzene and hydrogen sulfide in chemical processing plants?
My company has set the following alarm levels: for benzene, the first-level alarm is at 1.7 ppm, and the second-level alarm is at 3.4 ppm; for hydrogen sulfide, the first-level alarm is at 6.7 ppm, and the second-level alarm is at 13.4 ppm