REFERENCES
- Occupational Safety and Health Administration (OSHA) . 1994 . “ OSHA instruction CPL 2.103 ” . In The Field Inspection Reference Manual (FIRM) , Washington , D.C. : USDOL OSHA .
- 2002 . “Air Contaminants,” . Code of Federal Regulations , Title 29, Part 1910.1000
- Occupational Safety and Health Administration (OSHA) . 1991 . “ OSHA instruction CPL 2–243A ” . In The Chemical Information Manual , Washington , D.C. : USDOL OSHA .
- National Materials Advisory Board (NMAB) . Classification of Combustible Dusts in Accordance with the National Electrical Code , Washington , D.C. : NMAB . (NMAB 353–3–80)