Chemical names, synonyms, trade names, conversion factors, CAS, RTECS, and DOT numbers -- NIOSH Recommended Exposure Limits (NIOSH RELs) -- Occupational Safety and Health Administration (OSHA) Permissible Exposure Limits (PELs) -- NIOSH Immediate Dangerous to Life and Health values (NIOSH IDLHs) -- A physical description of the agent with chemical and physical properties -- Measurement methods -- Personal protection and sanitation recommendations -- Respirator recommendations -- Information on health hazards including route, symptoms, first aid and target organ information. "The NIOSH Pocket Guide to Chemical Hazards (NPG) is intended as a source of general industrial hygiene information on several hundred chemicals/classes for workers, employers, and occupational health professionals. [The guide] ... presents key information and data in abbreviated or tabular form for chemicals or substance groupings (e.g. cyanides, fluorides, manganese compounds) that are found in the work environment"--Intro. of online version.