Air samples are collected with a glass tube and personal sampling pump and analyzed with ion chromatography.ĭO NOT rely on your sense of smell to indicate the continuing presence of hydrogen sulfide or to warn of harmful levels. Information available on the pages includes chemical identification and physical properties, exposure limits, sampling information, and additional resources. It compiles information from several government agencies and organizations. OSHA's premier one-stop shop for occupational chemical information. Information on general atmospheric testing methods: Discusses the importance of evaluating the hazards of the confined space and verifying that acceptable conditions exist for entry into that space. Procedures for Atmospheric Testing in Confined Spaces.Detector tubes, direct reading gas monitors, alarm only gas monitors, and explosion meters are examples of monitoring equipment that may be used to test permit space atmospheres. When working in confined spaces air monitoring must be conducted in accord with the applicable OSHA standards. Use the right test equipment, such as an electronic meter that detects hydrogen sulfide gas.Ĭonduct air monitoring prior to and at regular times during any work activity where hydrogen sulfide exposure is possible. Test (monitor) the air for hydrogen sulfide.Use a Process or Job Hazard Analysis for identifying and controlling hazards. This includes identifying known sources of hydrogen sulfide and evaluating possible fire and explosion hazards. Identify processes that could release or produce hydrogen sulfide.Use personal protective equipment if engineering controls and work practices alone cannot reduce hydrogen sulfide to safe levels.
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