REFERENCES
- U.S. Department of Labor (USDOL), Occupational Safety and Health Administration (OSHA) . 1994 . “ OSHA Instruction CPL 2.103 ” . In Field Inspection Reference Manual (FIRM) , Washington, D.C. : USDOL, OSHA .
- U.S. Department of Labor (USDOL), Occupational Safety and Health Administration (OSHA) . 1993 . “ OSHA Instruction CPL 2-2.20B CH-1 ” . In OSHA Technical Manual , Washington, D.C. : USDOL, OSHA .
- U.S. Department of Labor (USDOL), Occupational Safety and Health Administration (OSHA) . 1991 . “ OSHA Instruction CPL 2-243A ” . In Chemical Information Manual , Washington, D.C. : USDOL, OSHA .
- American Conference of Governmental Industrial Hygienists (ACGIH®) . 2001 . Industrial Ventilation. A Manual of Recommended Practice, , 24th Edition , Cincinnati, Ohio : ACGIH . Figure VS-99-08