Question- if the 8 hour time weighted average exposure are


Question- If the 8 hour Time Weighted Average exposure are determined by charcoal tube sampling to be 60ppm toluene, 20ppm methylene chloride, and 20 ppm turpentine, using OSHA's personel exposure limits, has there been an over exposure?

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Chemistry: Question- if the 8 hour time weighted average exposure are
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