Explain Me What Is Stel 0 For 15 Minutes Continuous Exposure?

1.	Explain Me What Is Stel 0 For 15 Minutes Continuous Exposure?
Answer» It is considered as maximum allowable CONCENTRATION not to be EXCEEDED at any time during 15 MINUTES continuous expose period. It is a maximum on concentration to which WORKS or can be exposed to a period of to15 minutes continuously without SUFFERING from irritation.

Answer»

It is considered as maximum allowable CONCENTRATION not to be EXCEEDED at any time during 15 MINUTES continuous expose period.
It is a maximum on concentration to which WORKS or can be exposed to a period of to15 minutes continuously without SUFFERING from irritation.

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