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OSHA Technical Manual (OTM) - Section III: Chapter 6 | Occupational Safety and Health Administration
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![OSHA Technical Manual (OTM) - Section III: Chapter 6 | Occupational Safety and Health Administration OSHA Technical Manual (OTM) - Section III: Chapter 6 | Occupational Safety and Health Administration](https://www.osha.gov/sites/default/files/otm_iii_6fig05.gif)