Historical

NFPA 499-1997

NFPA 499: Classification of Combustible Dusts and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas, 1997 Edition

Applies to those locations where combustible dusts are produced, processed, or handled and where dust released into the atmosphere or accumulated on surfaces may be ignited by electrical systems or equipment.

CONTENT PROVIDER
National Fire Protection Association [nfpa]

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