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About This Item

 

Full Description

This Standard provides guidance on classification of gases and vapours. It describes a test method intended for the measurement of the maximum experimental safe gaps (MESG) for gas- or vapour-air mixtures under normal conditions of temperature1 and pressure so as to permit the selection of an appropriate group of equipment. This standard describes also a test method intended for use in the determination of the auto-ignition temperature of a chemically pure vapour or gas in air at atmospheric pressure.
 

Document History

  1. AS/NZS 60079.20.1:2012

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    Explosive atmospheres, Part 20.1: Material characteristics for gas and vapour classification - Test methods and data

    • Most Recent
  2. AS/NZS 60079.20:2000 AMDT 1


    Electrical apparatus for explosive gas atmospheres, Part 20: Data for flammable gases and vapours, relating to the use of electrical apparatus

    • Historical Version
  3. AS/NZS 60079.1.1:2002


    Electrical apparatus for explosive gas atmospheres, Part 1.1: Flameproof enclosures 'd' - Method of test for ascertainment of maximum experimental safe gap

    • Historical Version
  4. AS/NZS 60079.20:2000


    Electrical apparatus for explosive gas atmospheres, Part 20: Data for flammable gases and vapours, relating to the use of electrical apparatus

    • Historical Version
  5. AS/NZS 60079.12:2000


    Electrical apparatus for explosive gas atmospheres, Part 12: Classification of mixtures of gases or vapours with air according to their maximum experimental safe gaps and minimum igniting currents

    • Historical Version
  6. AS/NZS 60079.4:2000


    Electrical apparatus for explosive gas atmospheres, Part 4: Method of test for ignition temperature

    • Historical Version
  7. AS 1896-1976


    Method of test for ignition temperature of gases and vapours

    • Historical Version