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Registry of Toxic Effects of Chemical Substances (RTECS)

Helium

RTECS #

MH6520000

CAS #

7440-59-7

Updated

September 201

Molecular Weight

4.00

Molecular Formula

He

Synonyms

Helium (ACGIH:OSHA)

Reviews

OrganizationStandardReference
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-Simple asphyxiantDTLVS* TLV/BEI,2013
TOXICOLOGY REVIEWENTOX* -,494,2005
TOXICOLOGY REVIEWNBREV* 5,1,1981

Standards and Regulations

OrganizationStandardReference
Mine Safety and Health Administration (MSHA) STANDARDASPHYXIANTS/GASESDTLWS* 3,20,1973
Occupational Exposure Limit IN ARGENTINA, BULGARIA, COLOMBIA, JORDAN check ACGIH TLV;
Occupational Exposure Limit IN SINGAPORE, VIETNAM check ACGIH TLV
Occupational Exposure Limit-MEXICOSimple asphyxiant, 2004
Occupational Exposure Limit-NEW ZEALANDSimple asphyxiant, JAN2002
Occupational Exposure Limit-SWITZERLANDasphyxiant, 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 asphyxiants - inert gas and vaporCFRGBR 29,1915.1000,1993

NIOSH Documentation and Surveillance

OrganizationStandardReference
National Occupational Exposure Survey 1983Hazard Code 35925; Number of Industries 56; Total Number of Facilities 4400; Number of Occupations 51; Total Number of Employees Exposed 75526; Total Number of Female Employees Exposed 17064
National Occupational Hazard Survey 1974Hazard Code 35925; Number of Industries 93; Total Number of Facilities 5335; Number of Occupations 59; Total Number of Employees Exposed 43459

Status in Federal Agencies

OrganizationReference
EPA TSCA Section 8(b) CHEMICAL INVENTORY
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