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Printing Instructions | Text Version
Title: Maximum Use Concentration Example
Type: Text Slide
What is the MUC for an employee wearing a half-mask air purifying respirator (APF=10) in an atmosphere of sulfur dioxide gas (PEL=5 ppm)?
MUC = APF x OSHA Exposure Limit
MUC = 10 x 5 ppm = 50 ppm
Note that this calculated value does not exceed the IDLH level for sulfur dioxide (100 ppm), so that the MUC for this example would be 50 ppm.