Time weighted averages

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Time weighted averages

Meaning of term time weighted averages

The amount of hazardous material collected per cubic meter of air in a measured amount of time averaged over an eight hour day. This takes into account the fact that most hazardous substance exposure is uneven and the TWA gives a figure for total exposure

Category : physical attribute attributes and properties

Source:

http://web.simmons.edu/~boyd3/lis419/thesaurus/thesaurus.xls

Maddy, D. L., Krueger, B. E., &, Hoover, R. L. (1992). Reference and technical manual: A comprehensive guide to stained glass (2nd ed.), 738-764. Lee's Summit, MO: Stained Glass Association of America.

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