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Notices to Readers NIOSH Pocket Guide to Chemical Hazards

CDC's National Institute for Occupational Safety and Health (NIOSH) recently revised the NIOSH Pocket Guide to Chemical Hazards (1).* The Pocket Guide provides general industrial hygiene information for 398 chemicals or substance groupings that are found in the workplace and have existing Occupational Safety and Health Administration (OSHA) regulations. The information in the Pocket Guide is taken from the NIOSH/OSHA Occupational Health Guidelines for Chemical Hazards; NIOSH criteria documents and Current Intelligence Bulletins; and recognized references in the fields of industrial hygiene, occupational medicine, toxicology, and analytical chemistry. Data are presented in tabular form to provide a rapid, convenient source of information about general industrial hygiene and medical monitoring practices. The Pocket Guide includes chemical structures or formulas, identification codes, synonyms, current exposure limits, chemical and physical properties, flammability/combustibility ratings, specific gravities, incompatibilities and reactivities, measurement methods, respirator selections, signs and symptoms of exposure, and procedures for emergency treatment. Reported by: National Institute of Occupational Safety and Health, CDC.


  1. NIOSH. NIOSH pocket guide to chemical hazards. Cincinnati, Ohio: US Department of Health and Human Services, Public Health Service, CDC, 1990; DHHS publication no. (NIOSH)90-117.

*Copies are available from the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402; telephone (202) 783-3238; GPO stock no. 017-033-00448-0; price $7.00 each.

Use of trade names and commercial sources is for identification only and does not imply endorsement by the U.S. Department of Health and Human Services.

References to non-CDC sites on the Internet are provided as a service to MMWR readers and do not constitute or imply endorsement of these organizations or their programs by CDC or the U.S. Department of Health and Human Services. CDC is not responsible for the content of pages found at these sites. URL addresses listed in MMWR were current as of the date of publication.

All MMWR HTML versions of articles are electronic conversions from typeset documents. This conversion might result in character translation or format errors in the HTML version. Users are referred to the electronic PDF version ( and/or the original MMWR paper copy for printable versions of official text, figures, and tables. An original paper copy of this issue can be obtained from the Superintendent of Documents, U.S. Government Printing Office (GPO), Washington, DC 20402-9371; telephone: (202) 512-1800. Contact GPO for current prices.

**Questions or messages regarding errors in formatting should be addressed to The U.S. Government's Official Web PortalDepartment of Health and Human Services
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