ISA 12.10.05 : 2004

Foreword
1 Scope
2 References
3 Definitions
4 Area classification for combustible dusts
  4.1 General
  4.2 Area classification objectives for explosive dust
      atmospheres
  4.3 Area classification procedure for explosive dust
      atmospheres
5 Sources of release for explosive dust atmospheres
  5.1 General
  5.2 Identification of sources of release
6 Zones for explosive dust atmospheres
  6.1 General
  6.2 Zones for Dusts
  6.3 Examples of zones for explosive dust atmospheres
  6.4 Extent of zones for explosive dust atmospheres
7 Dust layer hazard
8 Documentation
  8.1 General
  8.2 Drawings, data sheets and tables
Annex B (informative) - Risk of Fire from Hot Surface Ignition
                        of Dust Layer
Annex C (informative) - Housekeeping
Annex D (informative) - United States Major Deviations

This document is concerned with the classification of areas where explosive dust/air mixtures atmospheres and combustible dust layers are present, in order to permit the proper selection of equipment for use in such areas.