The maximum value/concentration of a compound that a worker is allowed to be exposed for a short period of time, usually 15 minutes.

Short-Term Exposure Limit. A term used by ACGIH to indicate the maximum average concentration allowed for a continuous 15 minute exposure period.

a kind of PEL averaged over short periods of exposure, such as 10 or 15 minutes, instead of a full workday.

Short-Term Exposure Levels (15 minutes)

Short Term Exposure Limit (see TLV-STEL)

Short term exposure limit 1/2 Half-life

NIOSH short-term exposure limit

See Short Term Exposure Limit

Short term exposure limit. Maximum concentration of a toxic substance to which an unprotected worker may be exposed calculated as a 15 minute time weighted average.

Short-term exposure limit. The maximum average concentration allowed for a continuous 15-minute exposure period. (See TLV)

Short-Term Exposure Limit. The maximum allowable concentration, or ceiling, not to be exceeded at any time during a 15-minute exposure period up to four times per day. The level to which persons may be exposed continuously for 15 minutes without adverse effects.

Short-Term Exposure Limit (ACGIH terminology). See TLV.

the maximum permissible concentration of a material, generally expressed in ppm in air, for a defined short period of time (typically 5 minutes). These values, which may differ from country to country, are often backed up by regulation and therefore may be legally enforceable.

short term exposure limit. As used by US NIOSH, unless noted otherwise, the 15 minute time weighted average exposure that should not be exceeded at any time during a work day.

The short-term exposure limit or maximum concentration for a continuous 15 minute exposure (four periods allowed per day, with at least an hour between exposure periods and provided the daily TLV-TWA is not exceeded).

Short-Term Exposure Limit. A maximum concentration of an airborne toxic material in the workplace that should not be exceeded in any fifteen-minute period.

SHORT TERM EXPOSURE LIMIT. A 15-minute time-weighted average exposure which should not be exceeded at any time during a workday even if the 8-hour time-weighted average (TWA) is within the threshold limit value (TLV.) Exposures at the STEL should not be repeated more than four times a day and there should be at least 60 minutes between successive exposures at the STEL.

Refers to an exposure that may be tolerated for a brief time.

The employeeâ€(tm)s 15-minute time weighted average exposure which cannot be exceeded at any time. STEL is set by OSHA for each pollutant and expressed in terms of ppm or mg/m.