This standard applies to the production, processing, finishing, handling, recycling, storage, and use of all metals and alloys that are in a form that is capable of combustion or explosion, as well as to operations where metal or metal alloys are subjected to processing or finishing operations that produce combustible powder or dust.
Please note: This Standard is no longer under revision or accepting Public Input due to the Combustible Dust Document Consolidation Plan (consolidation plan) as approved by the NFPA Standards Council. As part of the consolidation plan, this Standard is slipping cycle and being combined into a new consolidated draft, NFPA 660. To submit a public input on this consolidated draft by the January 5, 2023 deadline, go to NFPA 660.