NCCER Painter Practice Questions - NCCER Painter Certification (Industrial & Commercial, Levels 1-3) Exam

OSHA's respirable crystalline silica PEL for construction (29 CFR 1926.1153) is:

25 µg/m³ as an 8-hour TWA 50 µg/m³ as an 8-hour TWA 100 µg/m³ as an 8-hour TWA 250 µg/m³ as an 8-hour TWA

Correct Answer:

50 µg/m³ as an 8-hour TWA

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