NIOSH (redirected from NIOSH Recommendations for Safety & Health Standards)

NIOSH,

abbreviation for National Institute for Occupational Safety and Health.

---

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