• There are no items in your cart

NFPA 497M : 1991

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

CLASSIFICATION OF GASES, VAPORS AND DUSTS FOR ELECTRICAL EQUIPMENT IN HAZARDOUS (CLASSIFIED) LOCATIONS
Superseded date

07-23-2013

Published date

01-12-2013

Chapter 1 General
1.1 Scope
1.2 Purpose
1.3 Definitions
Chapter 2 Class I materials - gases and vapors
Chapter 3 Class II materials - dusts
Chapter 4 Referenced publications
Appendix A
Appendix B Bibliography
Appendix C Referenced publications
Index

Specifies group classifications for selected gases, vapors, and dusts, as described in Article 500 of NFPA 70, to aid engineers in specifying the proper electrical equipment for hazardous (classified) locations. Also gives definitions and appendices.

DevelopmentNote
497M is also now included within NFPA 497 & NFPA 499
DocumentType
Standard
PublisherName
National Fire Protection Association
Status
Superseded
SupersededBy

API 500B : 88 ERRATA RECOMMENDED PRACTICE FOR CLASSIFICATION OF LOCATIONS FOR ELECTRICAL INSTALLATIONS AT DRILLING RIGS & PRODUCTION FACILITIES ON LAND & ON MARINE FIXED & MOBILE PLATFORMS
NFPA 49 : 1994 HAZARDOUS CHEMICALS DATA
ISA 12.10 : 1988 AREA CLASSIFICATION IN HAZARDOUS (CLASSIFIED) DUST LOCATIONS
NFPA 497B : 1991 RECOMMENDED PRACTICE FOR THE CLASSIFICATION OF CLASS II HAZARDOUS (CLASSIFIED) LOCATIONS FOR ELECTRICAL INSTALLATIONS IN CHEMICAL PROCESS AREAS

NFPA 321 : 1991 BASIC CLASSIFICATION OF FLAMMABLE AND COMBUSTIBLE LIQUIDS
NFPA 70 : 2017 NATIONAL ELECTRICAL CODE
ASTM D 93 : 2016-07 TEST METHODS FOR FLASH POINT BY PENSKY-MARTENS CLOSED CUP TESTER
NFPA 30 : 2018 FLAMMABLE AND COMBUSTIBLE LIQUIDS CODE
NFPA 325M : 1991 FIRE HAZARD PROPERTIES OF FLAMMABLE LIQUIDS, GASES, AND VOLATILE SOLIDS
ASTM E 659 : 2015 : REDLINE Standard Test Method for Autoignition Temperature of Chemicals
ASHRAE 15 : 2013 SAFETY STANDARD FOR REFRIGERATION SYSTEMS

View more information
Sorry this product is not available in your region.

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.