NFPA 497 PDF

Stay on Top of Safety in Chemical Process, Storage, and Handling Areas

The release of flammable and combustible substances in areas with electrical systems or equipment can result in a potentially destructive incident. NFPA 497, Recommended Practice for the Classification of Flammable Liquids, Gases, or Vapors and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas, delivers broad-based requirements for better safeguarding locations that handle these substances.

This vital safety document offers criteria for assessing ignitability hazards in chemical process areas, provisions for selecting the appropriate electrical systems and equipment for optimal safety, and parameters used to classify the extent of a hazardous location.