The 8-hour Time Weighted Average (TWA) PEL set by OSHA is 0.001 f/cc.

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Prepare for the Air Monitoring Technician Test with flashcards and multiple choice questions. Each question includes hints and explanations to help you ace the exam!

Multiple Choice

The 8-hour Time Weighted Average (TWA) PEL set by OSHA is 0.001 f/cc.

Explanation:
The 8-hour Time Weighted Average PEL for asbestos is 0.1 f/cc, not 0.001 f/cc. The TWA represents the average concentration over an 8-hour work shift, and for asbestos the OSHA limit is 0.1 fibers per cubic centimeter. So the statement is false because 0.001 f/cc is far below the actual PEL. Remember that f/cc means fibers per cubic centimeter, and the 8-hour TWA averages exposure across the full shift, with separate short-term limits applying to shorter durations.

The 8-hour Time Weighted Average PEL for asbestos is 0.1 f/cc, not 0.001 f/cc. The TWA represents the average concentration over an 8-hour work shift, and for asbestos the OSHA limit is 0.1 fibers per cubic centimeter. So the statement is false because 0.001 f/cc is far below the actual PEL. Remember that f/cc means fibers per cubic centimeter, and the 8-hour TWA averages exposure across the full shift, with separate short-term limits applying to shorter durations.

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