Associate Safety Professional Exam

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A safety professional needs to calculate the dilution ventilation required to control a solvent with an evaporation rate of 1 pint/hour. The solvent has a specific gravity of 0.88 and a molecular weight of 92. The TLV is 100 ppm. Using the standard dilution ventilation formula, approximately how many cubic feet per minute (CFM) of fresh air are needed (using K=10)?

Approximately 11,300 CFM Approximately 1,130 CFM Approximately 5,650 CFM Approximately 22,600 CFM

Correct Answer:

Approximately 11,300 CFM

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