References
- 1997 . Code of Federal Regulations: U.S. Department of Labor Part 29 CFR 1910.1000 , Washington, DC : U.S. Government Printing Office .
- American Conference of Governmental Industrial Hygienists . 1998 TLVs and BEIs; Threshold Limit Values for Chemical Substances and Physical Agents Biological Exposure Indices . Cincinnati, OH : ACGIH .
- U.S. Department of Labor, Occupational Safety and Health Administration . 1993 . OSHA Instruction CPL 2–2.20B CH-1. In: The OSHA Technical Manual , Washington, DC : USDOL OSHA .
- U.S. Department of Labor, Occupational Safety and Health Administration . 1991 . “ OSHA Instruction CPL 2–2.43A ” . In The Chemical Information Manual , Washington, DC : USDOL OSHA .