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

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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, 2008 Edition     Item#: 49708   List: $39.50   Member: $35.55 Choose Format

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Revision Cycle: Fall 2011
Revised Edition Date: 2012

Report on Proposals (ROP)

Proposal Closing Date: 5/28/2010
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ROP Posting Date: 12/22/2010

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Comment Closing Date: 3/4/2011
ROC Posting Date: 8/26/2011

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NITMAM Closing Date: 10/21/2011
NITMAM Posting Date: 11/18/2011