Definitions - Short-term and Brief exposure


Super Moderator
OHSA continually refers to 8hr Time Weighted Average for noise other exposure limits are set by NIOSH and other bodies and defined kinda like this...A short-term exposure limit (STEL) is the acceptable average exposure over a short period of time, usually 15 minutes as long as the time-weighted average is not exceeded. STEL is a term used in occupational health, industrial hygiene and toxicology. The STEL may be a legal limit in the United States for exposure of an employee to a chemical substance. (I stole the STEL definition)

Permissible Exposure Limits (PEL) can vary though depending on the material involved.

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