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Asked by kimminski - 2 years ago
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Sparky5458 Level 63 / Retired
Answered 2 years ago
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Too long to print but take a look here.

http://www.weegy.com/home.aspx?Conversat...
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Richard Level 73 / Retired Dentist
Answered 2 years ago
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In the US they are set out by OSHA.
See
http://osha.gov/

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