References
- U.S. Department of Labor, Occupational Safety and Health Administration . 1989 . “ OSHA Instruction CPL 2.45B ” . In The Field Operations Manual (FOM) , Washington, DC : USDOL OSHA .
- U.S. Department of Labor, Occupational Safety and Health Administration . 1992 . Title 29, Code of Federal Regulations, Part 1910 , Washington, DC : U.S. Government Printing Office, Office of the Federal Register .
- 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 .
- 1994–1995 Threshold Limit Values for Chemical Substances and Physical Agents and Biological exposure Indices . American Conference of Governmental Industrial Hygienists . Cincinnati, OH : ACGIH .