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File:Combinations of noise exposure levels and durations that no worker exposure shall equal or exceed.jpg

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English: Combinations of noise exposure levels and durations that no worker exposure shall equal or exceed
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Source National Institute for Occupational Safety and Health
Author National Institute for Occupational Safety and Health

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This image is a work of the National Institute for Occupational Safety and Health, part of the Centers for Disease Control and Prevention in the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain.

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current14:34, 9 July 2018Thumbnail for version as of 14:34, 9 July 2018881 × 800 (79 KB)Chuck Kardous (NIOSH) (talk | contribs)User created page with UploadWizard

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