1. 1992-1993, Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices;ACGIH,1992
2. AIHA Engineering Field Reference Manual,1982
3. AIHA Manual of Recommended Practice for Combustible Gas indicators and Portable, Direct-reading Hydrocarbon Detectors,1993
4. Performance Requirements, Combustible Gas Detectors;ANSI,1986
5. Worker Inhalation Exposure Monitoring During Removal of Hazardous Waste From a Superftind Site;Costello,1983