What is the maximum allowable exposure duration to the TLV/C of a material?
a. 15 minutes at a time, up to 4 times per day.
b. 8 hours per day, up to 40 hours per week.
c. No exposure of any duration is allowable.
d. A total of 8 hours per week.
Answer: c. No exposure of any duration is allowable.
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