What is the TLV for H2S?
What is the TLV for H2S? Other Exposure Limits for Hydrogen Sulfide ACGIH® recommends a threshold limit value (TLV®) of 1 ppm as an 8-hour time weighted average (TWA) and a short-term exposure limit (STEL) of 5 ppm. 29 CFR 1910.119 App A, List of highly hazardous chemicals, toxics and reactives (mandatory). What is the STEL for H2S? 5 ppm The new recommendations for airborne H2S exposure are a TWA of 1 ppm and an STEL of 5 ppm. What is TLV and STEL? A: The Threshold Limit Value (TLV(R) ) of a chemical substance establishes the reasonable level to...