Question

7. 'स्टेल' क्या होते हैं ?
What are 'Stel' ?​

Answer 1

Answer:

A short-term exposure limit 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. 

Answer 2

Explanation:

Short-term exposure limit (STEL) is an allowable average exposure over a short period of time, typically 15 minutes, and should not be exceeded more than four times in a day as long as the time weighted average is not exceeded.