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The American Conference of Governmental Industrial Hygienists, Inc.(ACGIH), is an organization open to all practitioners in industrial hygiene, occupational health, environmental health, or safety. Their web site is http://www.acgih.org/.
Industrial hygiene deals with the protection of the health of those involved in industry. This classifies it as a form of preventative medicine.
ACGIH publishes over 400 titles in occupational and environmental health and safety. They are most famous for their Threshold Limit Values publication which lists the TLV's® for over 700 chemical substances and physical agents, as well as 50 Biological Exposure Indices (BEI's®) for selected chemicals.
There was considerable controversy concerning the regulatory implications of TLV's, and the ACGIH was sued by a manufacturer's association in December 2000. See the links below for more information.
You will most commonly see the term ACGIH mentioned with respect to Threshold Limit Values. Such exposure values can provide terrific guidance as to the hazards and risks posed by a particular chemical. Always be sure to read scan the SDS for such information before using that material for the first time...and then take the appropriate steps to keep your exposure as low as reasonably achievable (ALARA).
The ACGIH or any member thereof is a good resource when you have questions or concerns about occupational and environmental health.
See also: AIHA, ASSE, ASTM, Threshold Limit Values (TLV)
Additional definitions from Google and OneLook.
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