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Chemical Sampling Information (CSI)
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General Description

Synonyms: Chrome

OSHA IMIS Code Number: C121

Chemical Abstracts Service (CAS) Registry Number: 7440-47-3

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: GB4200000; 25915

Chemical Description and Physical Properties:

molecular weight: 52.00
molecular formula: Cr

Exposure Limits

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 0.5 mg/m3 TWA

Health Factors

International Agency for Research on Cancer (IARC): Chromium and Chromium Compounds - Group 3, not classifiable as to its carcinogenicity to humans

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • See IMIS 0690, Chromium Sol. Chromic, Chromous Salts (as Cr)

  • See IMIS 0685, Chromium Metal and Insoluble Salts

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