Permissible Exposure Level – 8 Hours. Possible fatigue, loss of appetite, headache, irritability, poor memory, dizziness. Intense odor. Above 30ppm odor is sweet or sickeningly sweet. Mild Irritation - eyes, throat – 1 Hour. Coughing, eye irritation, loss of smell 2-15 minute. Altered breathing, drowsiness 15-30 minutes. Throat irritation 1 hour.

Provides physical descriptions, exposure limits, measurement methods, personal protection and sanitation, first aid, respirator recommendations, exposure routes, symptoms, target organs, and other information about 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.

Workers exposed to hydrogen sulfide may have decreased lung function and increased risk of impaired neurological function (memory, reaction time, color discrimination, balance and mood) and spontaneous abortion.

CDC’s website is being modified to comply with President Trump’s Executive Orders. Hydrosulfuric acid, Sewer gas, Sulfuretted hydrogen. Colorless gas with a strong odor of rotten eggs. [Note: Sense of smell becomes rapidly fatigued & can NOT be relied upon to warn of the continuous presence of H 2 S. Shipped as a liquefied compressed gas.]

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. In addition to exposure to hydrogen sulfide in the air, exposure to liquid hydrogen sulfide can cause "blue skin" or ...

Learn more about Hydrogen Sulfide (H2S). Understand it’s harmful effects, worker exposure limits, and how OSHA regulates PELs, or permissible exposure limits, based on ppm (parts per million) exposure levels for Hydrogen Sulfide.

Hydrogen sulfide (H2S) is most commonly encountered occupationally as an environmental contaminant (see Uses and Occurrences). However, it is also available commercially in grades of 99-99.99 mole% minimum H2S (liquid phase). Most H2S is made and used captively (i.e. at the site of production) or transported over several kilometres by pipeline.

2021年2月7日 · H2S exposure chart help us identifying the hazard level of H2S. Understand this chart well so you know how act quickly to minimize the risks

Chart corrected 1/12/2002, due to e-mail from a victim of H2S poisoning 0.03 ppm: Can smell. Safe for 8 hours exposure 4 ppm: May cause eye irritation. Mask must be used as it damages metabolism. 10 ppm : Maximum exposure 10 minutes. Kills smell in 3 to 15 minutes. Causes GAS EYE and throat injury. Reacts violently with dental mercury amalgam ...