Hydrogen Sulfide - Standards - Occupational Safety and Health ...
Other Exposure Limits for Hydrogen Sulfide. NIOSH Recommended Exposure Limit (REL): 10 ppm, 10-minute ceiling. Concentration considered immediately dangerous to life and health (IDLH): 100 ppm. 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.
HYDROGEN SULFIDE - Occupational Safety and Health Administration
Jan 11, 2024 · ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Hydrogen sulfide. See annual publication for most recent information.
Hydrogen sulfide - IDLH | NIOSH | CDC - Centers for Disease …
The revised IDLH for hydrogen sulfide is 100 ppm based on acute inhalation toxicity data in humans
HYDROGEN SULFIDE - ACGIH
HYDROGEN SULFIDE. CAS number: 7783-06-4. Synonyms: Hydrosulfuric acid; Stink damp; Sulfur hydride; Sulfureted hydrogen. Molecular formula: H 2 S. TLV–TWA, 1 ppm (1.4 mg/m 3) TLV–STEL, 5 ppm (7 mg/m 3) To view TLV and Documentation, you must be logged in as an ACGIH member or have previously purchased the documentation.
New TLV Exposure Limit: Measuring Hydrogen Sulfide - Cole …
Jul 17, 2019 · In February 2010, the American Conference of Governmental Industrial Hygienists (ACGIH ®) adopted a new Threshold Limit Value (TLV ®) recommendation for H 2 S, lowering the 8-hour TWA to 1.0 ppm, and the STEL to 5.0 ppm. The new TLV ® has forced many companies to reconsider exposure limit guidelines and alarm settings. A major issue is ...
What is the Acceptable Short-Term Exposure for H2S?
Nov 26, 2019 · What is the Acceptable Short-Term Exposure for H2S? The actual term, according to the American Council of Government Industrial Hygienists (ACGIH), is Threshold Limit Value-Short Term Exposure Limit (TLV-STEL). Short-Term …
What are H2S Exposure Limits? - Definition from Safeopedia
Aug 19, 2024 · Threshold Limit Value (TLV): ACGIH sets the TLV for H₂S at 1 ppm as an 8-hour TWA and 5 ppm as a short-term exposure limit (STEL), which is the maximum concentration workers can be exposed to for 15 minutes.
ACGIH: The threshold limit value (TLV) is 1 ppm averaged over an 8-hour workshift and 5 ppm as a STEL (short-term exposure limit). f The above exposure limits are for air levels only. When skin contact also occurs, you may be overexposed, even …
Hydrogen sulfide is a highly flammable, explosive gas, and can cause possible life-threatening situations if not properly handled. Hydrogen sulfide gas burns and produces other toxic vapors and gases, such as sulfur dioxide.
CCOHS: Hydrogen Sulfide
May 10, 2024 · What are the most important things to know about hydrogen sulfide in an emergency? What are the potential health effects of hydrogen sulfide? What are first aid measures for hydrogen sulfide? What are fire hazards and extinguishing media for hydrogen sulfide? What are the stability and reactivity hazards of hydrogen sulfide?