Investigation of 11 Chemicals with Respect to Explosion-Proof Electrical Equipment.
UNDERWRITERS' LABS INC NORTHBROOK IL
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This report describes an investigation of eleven flammable chemicals to determine the Group Classification of each chemical with respect to explosion-proof electrical equipment in Class I hazardous locations. The Groups of Class I hazardous locations are defined in the 1971 Edition of the National Electrical Code NFPA No. 70-1971 ANSI CL-1971. Author
- Safety Engineering