Definition(s)


Short term exposure limit (STEL)

A 15-minute TWA exposure that should not be exceeded at any time during a workday.

Source: API RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. Global Standards

 

STEL

short-term exposure limit.

Source: API RP 98, Personal Protective Equipment Selection for Oil Spill Responders, First Edition, August 2013. Global Standards

 

STEL

Fifteen-minute TWA exposure limit that shall not be exceeded at any time during a workday unless another time limit is established.

Source: API RP 98, Personal Protective Equipment Selection for Oil Spill Responders, First Edition, August 2013. Global Standards

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