What does TLV-STEL stand for?

TLV-STEL stands for Short-Term Exposure Limit. This term is associated with occupational health and safety, specifically regarding the concentration of a substance in the air. It defines the maximum allowable concentration of a chemical substance that a worker can be exposed to for a short period, typically not exceeding 15 minutes, without experiencing adverse health effects.

The significance of TLV-STEL is that it provides guidelines to help ensure workplace safety by minimizing exposure to harmful substances. It recognizes that short bursts of exposure to higher concentrations can be permissible for short durations, provided that the average exposure does not exceed stipulated levels over a longer period.

In this context, the other options do not accurately reflect the meaning of TLV-STEL. Standard Time Exposure Limit and Threshold Long Value Exposure Limit are not recognized terms in occupational health, while Short-Term Environmental Limit does not specifically refer to workplace exposure criteria. Thus, the correct identification of TLV-STEL ensures proper understanding of safe exposure levels in occupational settings.