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FLINN
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PAVO
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Address P.O. Box 219 Batavia, IL 60510
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Chemical Exposure

firewatch

DCAT003

Price: FREE

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When are vapors harmful to you and your students? Threshold Limit Values (TLV) and Permissible Exposure Limits (PEL) refer to the levels of a chemical above which a person should avoid repeated and prolonged exposure.