Rhodium

RTECS #
VI9069000
CAS #
7440-16-6
See: NMAM or OSHA Methods
Updated
April 2015
Molecular Weight
102.91
Molecular Formula
Rh
Synonyms
RH
Rhodium, metal (ACGIH:OSHA)

Reviews

OrganizationStandardReference
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-time-weighted average 1 mg/m3DTLVS* TLV/BEI,2013
American Conference of Governmental Industrial Hygienists (ACGIH)Threshold Limit Value-Not classifiable as a human carcinogenDTLVS* TLV/BEI,2013
TOXICOLOGY REVIEWENTOX* -,698,2005
TOXICOLOGY REVIEWMUREAV 762,76,2014

Standards and Regulations

OrganizationStandardReference
Occupational Exposure Limit IN ARGENTINA, BULGARIA, COLOMBIA, JORDAN check ACGIH TLV;
Occupational Exposure Limit IN SINGAPORE, VIETNAM check ACGIH TLV
Occupational Exposure Limit-AUSTRALIAtime-weighted average 1 mg/m3, JUL2008
Occupational Exposure Limit-BELGIUMtime-weighted average 0.01 mg(Rh)/m3, MAR2002
Occupational Exposure Limit-BELGIUMtime-weighted average 1 mg/m3 (dust), MAR2002
Occupational Exposure Limit-DENMARKtime-weighted average 0.1 mg(Rh)/m3 (dust, fume), MAY2011
Occupational Exposure Limit-FINLANDtime-weighted average 0.1 mg/m3, NOV2011
Occupational Exposure Limit-FRANCEVME 1 mg/m3, FEB2006
Occupational Exposure Limit-ICELANDtime-weighted average 0.1 mg/m3 (dust, fume), NOV2011
Occupational Exposure Limit-KOREAtime-weighted average 0.1 mg/m3, 2006
Occupational Exposure Limit-NEW ZEALANDtime-weighted average 1 mg/m3, JAN2002
Occupational Exposure Limit-NORWAYtime-weighted average 0.1 mg/m3, JAN1999
Occupational Exposure Limit-SWITZERLANDMAK-week 0.1 mg/m3, inhal, JAN2011
Occupational Exposure Limit-SWITZERLANDMAK-week 0.1 mg/m3, resp dust, JAN2011
Occupational Exposure Limit-THE NETHERLANDSMAC-TGG 0.1 mg/m3, 2003
Occupational Exposure Limit-THE PHILIPPINEStime-weighted average 0.1 mg/m3, JAN1993
Occupational Exposure Limit-UNITED KINGDOMtime-weighted average 0.1 mg/m3;short term exposure limit 0.3 mg/m3, OCT2007
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Construction)8H time-weighted average 0.1 mg(Rh)/m3 (fume)CFRGBR 29,1926.55,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Federal Contractors)8H time-weighted average 0.1 mg(Rh)/m3,fume and dustCFRGBR 41,50-204.50,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (General Industry)8H time-weighted average 0.1 mg(Rh)/m3CFRGBR 29,1910.1000,1994
Occupational Safety and Health Administration (OSHA) Permissible Exposure Limit (Shipyards)8H time-weighted average 0.1 mg(Rh)/m3,CFRGBR 29,1915.1000,1993

NIOSH Documentation and Surveillance

OrganizationStandardReference
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Level TO RHODIUM (as Rh), soluble compds-air10H time-weighted average 0.001 mg/m3NIOSH* DHHS #92-100,1992
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Level TO RHODIUM (as Rh)-air10H time-weighted average 0.1 mg/m3NIOSH* DHHS #92-100,1992
National Occupational Exposure Survey 1983Hazard Code 67405; Number of Industries 17; Total Number of Facilities 1612; Number of Occupations 27; Total Number of Employees Exposed 12004; Total Number of Female Employees Exposed 2078
National Occupational Hazard Survey 1974Hazard Code 67405; Number of Industries 5; Total Number of Facilities 201; Number of Occupations 7; Total Number of Employees Exposed 3399

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
Page last reviewed: November 16, 2018