Description of NFPA 497 2008

Trust the 2008 NFPA 497 to help you perform accurate hazardous (classified) area classification in Class I hazardous (classified) locations.

NFPA 497: Classification of Flammable Liquids, Gases, or Vapors and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas has a close relationship to the electrical installation requirements for hazardous (classified) locations contained in NFPA 70™: National Electrical Code®. To ensure correlation with revisions made to the 2008 NEC®, the 2008 NFPA 497 now includes:

• Changes to the scope to specify that explosives, pyrotechnics, and blasting agents have unique hazards that are not addressed by the recommendations of the document
• Recognition of areas as being unclassified where the gas or vapor concentration is insufficient to reach 25% of the lower flammable limit (LFL)
• Additions and revisions to Table 4.4.2 on physical properties of selected chemicals in order to provide information on commonly used materials not previously covered and to resolve differences that existed between this table and similar information contained in other documents
• Revision to the Annex B example on determining the maximum experimental safe gap and NEC group classification for mixtures

Make sure you have the up-to-date knowledge you need to properly select and install electrical equipment so it will not be an ignition source in environments where flammable or combustible liquids, gases, or vapors are processed or handled. Order the 2008 NFPA 497 today.

Customers who bought this book also bought...

Format	Year	Publisher	Type	Title				Annual Price
	2008	NFPA	Model Standard	NFPA 30: Flammable and Combustible Liquids Code				$197.13	Buy
	2008	NFPA	Model Standard	NFPA 70: National Electrical Code				$197.13	Buy
	1997	NFPA	Model Standard	NFPA 497: Classification of Flammable Liquids, Gases, or Vapors and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas				$197.13	Buy
	2008	NFPA	Model Standard	NFPA 499: Recommended Practice for the Classification of Combustible Dusts and of Hazardous Locations for Electrical Installatio				$197.13	Buy

The following editions for this book are also available...

Format	Year	Publisher	Type	Title				Annual Price
	1997	NFPA	Model Standard	NFPA 497: Classification of Flammable Liquids, Gases, or Vapors and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas				$197.13	Buy
	2012	NFPA	Model Standard	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				$197.13	Buy
	2017	NFPA	Model Standard	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				$197.13	Buy
	2021	NFPA	Model Standard	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				$197.13	Buy
	2024	NFPA	Model Standard	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				$197.13	Buy

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2007	NFPA	NFPA 13R: Standard for the Installation of Sprinkler Systems in Residential Occupancies up to and Including Four Stories in Height
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1998	NFPA	NFPA 11: Standard for Low-Expansion Foam
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1999	NFPA	NFPA 11A: Standard for Medium- and High-Expansion Foam Systems
2000	NFPA	NFPA 12: Standard on Carbon Dioxide Extinguishing Systems
2008	NFPA	NFPA 12: Standard on Carbon Dioxide Extinguishing Systems
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1998	NFPA	NFPA 11: Standard for Low-Expansion Foam
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1999	NFPA	NFPA 11A: Standard for Medium- and High-Expansion Foam Systems
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About NFPA

The mission of the international nonprofit NFPA, established in 1896, is to reduce the worldwide burden of fire and other hazards on the quality of life by providing and advocating consensus codes and standards, research, training, and education.

The world's leading advocate of fire prevention and an authoritative source on public safety, NFPA develops, publishes, and disseminates more than 300 consensus codes and standards intended to minimize the possibility and effects of fire and other risks.

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