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  • Hydrogen Sulfide - Overview - Occupational Safety and Health Administration
    Hydrogen sulfide (also known as H 2 S, sewer gas, swamp gas, stink damp, and sour damp) is a colorless gas known for its pungent "rotten egg" odor at low concentrations It is extremely flammable and highly toxic Hydrogen sulfide is used or produced in a number of industries, such as
  • Hydrogen Sulfide - Hazards - Occupational Safety and Health Administration
    Hazards Health Hazards Hydrogen sulfide gas causes a wide range of health effects Workers are primarily exposed to hydrogen sulfide by breathing it The effects depend on how much hydrogen sulfide you breathe and for how long Exposure to very high concentrations can quickly lead to death Short-term (also called acute) symptoms and effects are shown below:
  • FactSheet - Occupational Safety and Health Administration
    Contact with liquid hydrogen sulfide causes frostbite If clothing becomes wet with the liquid, avoid ignition sources, remove the clothing and isolate it in a safe area to allow
  • Table of Effects of H2S - Occupational Safety and Health Administration
    Effects of Hydrogen Sulfide H2S PPM EFFECT TIME 00011-33 Typical background concentrations 0 01-1 5 Odor threshold – rotten egg smell 10 Permissible Exposure Level – 8 Hours 20 -30 Possible fatigue, loss of appetite, headache, irritability, poor memory, dizziness Intense odor Above 30ppm odor is sweet or sickeningly sweet
  • Hydrogen Sulfide - Standards - Occupational Safety and Health . . .
    General Industry: 29 CFR 1910 1000 TABLE Z-2, Toxic and hazardous substances Exposures must not exceed 20 parts per million (ppm) (ceiling) with the following exception: if no other measurable exposure occurs during the 8-hour work shift, exposures may exceed 20 ppm, but not more than 50 ppm (peak), for a single time period up to 10 minutes
  • eTool : Oil and Gas Well Drilling and Servicing - General Safety - H2S . . .
    H2S fire and explosion hazards H 2 S is very flammable and will ignite at concentrations in the air between 4 0% and 46 0% H 2 S (Refer to the NIOSH Pocket Guide and to ANSI ASSE Z390 1-2017 ) A byproduct of combustion of H 2 S is toxic SO2 gas
  • Hydrogen Sulfide - Evaluating and Controlling Exposure | Occupational . . .
    To protect workers from harmful hydrogen sulfide exposures: Evaluate exposure to know whether H 2 S gas is present and at what levels ; Eliminate the source of hydrogen sulfide whenever possible If the source cannot be eliminated, control exposures by: Using engineering controls as the next best line of defense
  • Hydrogen Sulfide - Hydrogen Sulfide in Workplaces | Occupational Safety . . .
    Hydrogen Sulfide in Workplaces Hydrogen Sulfide Can Kill Workers A 49-year old sanitation worker died when rescuing a co-worker from an underground sewer vault when he was overcome with hydrogen sulfide gas Workers who entered a 27-foot deep pit in a marshy area died after being overcome by hydrogen sulfide
  • BRIEF DESCRIPTION OF INCIDENT - Occupational Safety and Health . . .
    H2S is a colorless, flammable, and corrosive gas with an odor similar to rotten eggs People can lose their ability to smell H2S, even at low concentrations, a condition called olfactory fatigue Because of olfactory fatigue, OSHA warns that the sense of smell should not be used as a detection method According to the National Institute for
  • HYDROGEN SULFIDE† - Occupational Safety and Health Administration
    On-Site Screening Techniques; Device: Detector tube : Detector tube : Detector tube : CMS Chips : CMS Chip : CMS Chip : Model Type: Dräger - Hydrogen Sulfide 1 d, 8101831





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