Science Fair Project Encyclopedia
Permissible Exposure Limit
The Permissible Exposure Limit (PEL or OSHA PEL) is a legal limit in the United States for personal exposure to a substance, usually expressed in parts per million (ppm). Workers may not be exposed to greater than this concentration during any eight-hour workshift. Permissible Exposure Limits are defined by the Occupational Safety and Health Administration (OSHA).
10-26-2009 08:16:03
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details