Table of Contents

INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General
5 Area classification methodology
6 Release of flammable substance
7 Type of zone
8 Extent of zone
9 Documentation
Annex A (informative) - Suggested presentation of
        hazardous areas
Annex B (informative) - Estimation of sources of
        release
Annex C (informative) - Ventilation guidance
Annex D (informative) - Estimation of hazardous
        zones
Annex E (informative) - Examples of hazardous
        area classification
Annex F (informative) - Schematic approach to
        classification of hazardous areas
Annex G (informative) - Flammable mists
Annex H (informative) - Hydrogen
Annex I (informative) - Hybrid mixtures
Annex J (informative) - Useful equations in
        support to hazardous area classification
Annex K (informative) - Industry codes and
        national standards
Bibliography

Abstract

Specifies with the classification of areas where flammable gas or vapour hazards may arise and may then be used as a basis to support the proper selection and installation of equipment for use in hazardous areas.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 31