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  • AS/NZS 80079.20.1:2019

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    Explosive atmospheres Material characteristics for gas and vapour classification - Test methods and data (ISO/IEC 80079-20-1:2017, (ED. 1.0)/COR1:2018, MOD)

    Available format(s):  Hardcopy, PDF 1 User, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English

    Published date:  20-12-2019

    Publisher:  Standards Australia

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    Abstract - (Show below) - (Hide below)

    The objective of this Standard is to provide guidance on classification of gases and vapours. It describes a test method intended for the measurement of the maximum experimental safe gaps (MESG) for gasair mixtures or vapour-air mixtures under normal conditions of temperature and pressure (20 °C, 101,3kPa) so as to permit the selection of an appropriate group of equipment.

    Scope - (Show below) - (Hide below)

    This part of ISO/IEC 80079 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-air mixtures or vapour-air mixtures under normal conditions of temperature and pressure (20 °C, 101,3 kPa) so as to permit the selection of an appropriate group of equipment. This document also describes a test method intended for use in the determination of the auto-ignition temperature (AIT) of a vapour-air mixture or gas-air mixture at atmospheric pressure, so as to permit the selection of an appropriate temperature class of equipment.
    Values of chemical properties of materials are provided to assist in the selection of equipment to be used in hazardous areas. Further data may be added as the results of validated tests become available.
    The materials and the characteristics included in a table (see Annex B) have been selected with particular reference to the use of equipment in hazardous areas. The data in this document have been taken from a number of references which are given in the bibliography.
    These methods for determining the MESG or the AIT may also be used for gas-air-inert mixtures or vapour-air-inert mixtures. However, data on air-inert mixtures are not tabulated.

    General Product Information - (Show below) - (Hide below)

    Committee EL-014
    Document Type Standard
    Product Note Modifies ISO/IEC 80079-20-1:2017, (ED. 1.0)/COR1:2018.
    Publisher Standards Australia
    Status Current
    Supersedes

    History - (Show below) - (Hide below)

    First published as AS/NZS 80079.20.1:2019.

    Standards Referenced By This Book - (Show below) - (Hide below)

    IEC 60079-14:2013 Explosive atmospheres - Part 14: Electrical installations design, selection and erection
    IEC 60079-11:2011 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
    IEC 60050-426:2008 International Electrotechnical Vocabulary (IEV) - Part 426: Equipment for explosive atmospheres

    Standards Referencing This Book - (Show below) - (Hide below)

    AS 2809.2:2020 Road tank vehicles for dangerous goods Road tank vehicles for flammable liquids
    AS 2809.1:2020 Road tank vehicles for dangerous goods General requirements for all road tank vehicles
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