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Registry of Toxic Effects of Chemical Substances (RTECS)

Nitrogen

RTECS #

QW9700000

CAS #

7727-37-9

Updated

September 201

Molecular Weight

28.02

Molecular Formula

N2

Synonyms

Nitrogen (ACGIH:OSHA)
Nitrogen gas
Nitrogen liquid

Reviews

OrganizationStandardReference
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-Simple asphyxiantDTLVS* TLV/BEI,2013

Standards and Regulations

OrganizationStandardReference
Environmental Protection Agency (EPA) Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) 1998 STATUS OF PESTICIDESActive registrationRBREV* -,379,1998
Mine Safety and Health Administration (MSHA) STANDARDASPHYXIANTS/GASESDTLWS* 3,24,1973
Occupational Exposure Limit IN ARGENTINA, BULGARIA, COLOMBIA, JORDAN check ACGIH TLV;
Occupational Exposure Limit IN SINGAPORE, VIETNAM check ACGIH TLV
Occupational Exposure Limit-BELGIUMAsphyxiant, MAR2002
Occupational Exposure Limit-NEW ZEALANDSimple asphyxiant, JAN2002
Occupational Exposure Limit-SWITZERLANDasphyxiant, JAN2011
Occupational Exposure Limit-SWITZERLANDMAK-week 0.2 mg/m3, inhal, skin, JAN2011
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction)simple asphyxiant-inert gases and vaporsCFRGBR 29,1926.55,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards)Simple asphyxiant - inert gas and vaporCFRGBR 29,1915.1000,1993

NIOSH Documentation and Surveillance

OrganizationStandardReference
National Occupational Exposure Survey 1983Hazard Code X3142; Number of Industries 33; Total Number of Facilities 1658; Number of Occupations 37; Total Number of Employees Exposed 30050; Total Number of Female Employees Exposed 6624
National Occupational Exposure Survey 1983Hazard Code 50865; Number of Industries 159; Total Number of Facilities 19784; Number of Occupations 155; Total Number of Employees Exposed 622276; Total Number of Female Employees Exposed 316139
National Occupational Hazard Survey 1974Hazard Code 50865; Number of Industries 119; Total Number of Facilities 8908; Number of Occupations 106; Total Number of Employees Exposed 147122

Status in Federal Agencies

OrganizationReference
EPA TSCA Section 8(b) CHEMICAL INVENTORY
EPA TSCA Section 8(d) unpublished health/safety studies
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JANUARY 2001
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