OSHA IMIS Code Number: W101

Chemical Abstracts Service (CAS) Registry Number: 13983-17-0

OSHA Permissible Exposure Limit (PEL):

General Industry: See Dust (Respirable Nuisance) or Dust, Total

Carcinogenic Classification:

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

Primary Laboratory Sampling/Analytical Method (SLC1):

For Total Dust or Respirable Fraction -- See Particulates not otherwise regulated (Total Dust) AND Particulates not otherwise regulated (Respirable Fraction) For Fiber Count -- See Asbestos

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