short-term exposure limit


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short-·term ex·po·sure lim·'it (STEL),

the maximum concentration of a chemical to which workers may be exposed continuously for up to 15 minutes without danger to health or work efficiency and safety.

short-term exposure limit

The maximum concentration of a chemical to which workers can be exposed by law for 15 continuous minutes.

short-term ex·po·sure limit

(short-tĕrm eks-pō'zhŭr lim'it)
The maximum concentration of a chemical to which workers may be exposed continuously for up to 15 minutes without danger to health or work efficiency and safety.
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References in periodicals archive ?
The final standard, which is expected to prevent at least 79 cancer deaths over a 45-year working lifetime, also includes a 15-minute short-term exposure limit (STEL) of 5 ppm and an action level of 0.5 ppm.
* Exposure limits - eight-hour time-weighted average (TWA) permissible exposure limit (PEL of 1 part BD per million parts air [ppm]); short-term exposure limit (STEL) of 5 ppm over a 15-minute period; and an action level of 0.5 ppm.
For compounds for which ACGIH finds the toxicology data insufficient to calculate a short-term exposure limit (STEL), excursion limits from the TLV are based on practical application of a log-normal concentration distribution.
The rule reduces the permissible exposure limit (PEL) of beryllium to 0.2 micrograms per cubic meter of air over the course of an eight-hour shift, as well as a new short-term exposure limit of 2 micrograms per cubic meter of air over a 15-minute period.
The American Conference of Governmental Industrial Hygienists has established a threshold limit value of 100 ppm and a 15-min short-term exposure limit of 150 ppm for DPGME (5).
A statement signed by the presidents of both groups further stated that short-term exposure limits (STELs) are appropriate for selected lab operations involving hazardous chemicals.

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