Chemistry, 13.09.2019 23:30 miyahhh123
The national institute for occupational safety and health (niosh) sets standards for ccl4 in air at 12.6 mg/m^3 of air (a time average over 40 hr). the ccl4 found in a sample is 4800 ppb. does the sample meet the niosh standard?
Answers: 2
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