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NIOSH
NIOSHAbbr. for “National Institute of Occupational Safety and Health.”NIOSH
National Institute for Occupational Safety and Health (NIOSH) an organizational component of the centers for disease control and prevention, charged with ensuring safety and health for all people in the workplace through research and prevention.NIOSH National Institute for Occupational Safety & Health, see there. NIOSH Recommendations for Safety & Health Standards Agent NIOSH REL*/OSHA PEL† Health effects Acetylene ≤2500 ppm/2500 ppm Asphyxia Alkanes-octane 75 ppm (≤385 15 min)/500 ppm Skin, CNS Ammonia 50 ppm/50 ppm Respiratory and ocular irritant Benzene 0.1 ppm, TWA†† (< 1 ppm 15 min)/ 1 ppm, TWA (<5 ppm 15 min) Leukemia Carbon tetrachloride 2 ppm ceiling/20 ppm (100 ppm 30 min) Liver cancer Chlorine 0.5 ppm (15 min)/1 ppm (15 min) Respiratory and ocular irritant Ethylene oxide 0.1 TWA (5 ppm 10 min)/1 ppm TWA Mutations, leukemia, mesothelioma Formaldehyde 0.16 ppm (1 ppm 15 min)/ 1 ppm, TWA (2 ppm 15 min) Nasal cancer Hydrogen cyanide 4.7 ppm (10 min ceiling)/10 ppm Blood, thyroid, respiratory effects Hydrogen sulfide 10 ppm/20 ppm (50 ppm 10min) Irritation-CNS, respiratory effects Methylene chloride As low as possible/500 ppm Cancer
(2000 ppm 5 min) Nitric oxide 2 ppm/2ppm Dental erosion, nasal, lung irritation Nitroglycerin 0.1 mg/m3 (20 min)/2 mg/m3 Circulatory effects Phenol 5.2 ppm (15.6 15 min)/5 ppm Skin, eye, CNS, liver, kidney effects Sulfuric acid 1 mg/m3/ 1 mg/m3 avoid skin & eye contact Pulmonary irritation Toluene 100 ppm (200 ppm 10 min)/ 200 ppm (500 ppm 10 min) CNS depression Xylene 100 ppm (200 ppm 10 min)/100 ppm CNS depression, lung irritation *Relative exposure limit †Permissible exposure limit ††8 hr-time weighted average; all time values refer to 'ceiling' levels Complete NIOSH table is available from Pubs Dissemination, Div Standards Development & Tech Transfer, NIOSH, 4676 Colombia Pkwy, 45226 ☎ 1.513.533.8287 NIOSH (nī'osh) Acronym for U.S. National Institute for Occupational Safety and HealthNIOSH Abbreviation for National Institute for Occupational Safety and Health. NIOSH
| Acronym | Definition |
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| NIOSH➣National Institute for Occupational Safety and Health (US CDC) | | NIOSH➣National Institute of Safety and Health (US CDC) |
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