American Conference of Governmental Industrial Hygienists (ACGIH®), your industrial hygiene, environmental, occupational health and safety resource that advances worker health and safety and offers books, conferences, and education and training courses.

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Technical Questions

Our Science Group responds to technical questions as time permits, with priority given to ACGIH® members. We will make every effort to respond to all questions within 15 business days. As this is a complimentary service, the tasks related to our primary mission of development of the TLVs® and BEIs® are our highest priority.

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Last update on 05/01/2006. Questions or problems? Please contact us. © 2012 American Conference of Governmental Industrial Hygienists, 1330 Kemper Meadow Drive, Cincinnati, Ohio 45240, 513-742-2020. ACGIH® and related marks are marks of the American Conference of Governmental Industrial Hygienists. All Rights Reserved. Terms of Access. ACGIH® Privacy Policy. Site Map.