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IEC 60079-20-1 Ed. 1.0 Edition 01/2010
Explosive atmospheres - Part 20-1: Material characteristics for gas and vapour classification - Test methods and data
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Abstract

IEC 60079-20-1:2010 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 temperature and pressure so as to permit the selection of an appropriate group of equipment. The tabulated values of chemical and engineering properties of substances are provided to assist engineers in their selection of equipment to be used in hazardous areas. This first edition of IEC 60079-20-1 cancels and replaces the first edition of IEC 60079-1-1(2002), the second edition of IEC 60079-4 (1975), its amendment 1(1995) and its complement: IEC 60079-4A (1970), the first edition of IEC/TR 60079-12 (1978) and the first edition of IEC 60079-20 (1996). It constitutes a technical revision. The contents of the corrigendum of July 2012 have been included in this copy.

Status

Standard - Active

Origin

Technical Committee :
31M : Non-electrical equipment and protective systems for explosive atmospheres

Implementation

start of the vote on the project      date of ratification (dor)   
end of the vote on the project      date of anouncement (doa)   
start of the vote on the final project      date of publication (dop)   
end of the vote on the final project      date of withdrawal (dow)   


Publication Official Journal
of the Grand-Duchy of Luxembourg
Reference

Relations

Evolutions
IEC 60951-3 Ed.3.0 RLV
ISO/IEC 80079-20-1 Ed.1.0

Relations to older standards
IEC/TR 60079-20 Ed. 1.0
IEC 60079-4 am1 Ed. 2.0
IEC 60079-4 Ed. 2.0
IEC 60079-1-1 Ed. 1.0
IEC/TR 60079-12 Ed. 1.0

International Classification for Standards (ICS codes) :

29.260.20 : Electrical apparatus for explosive atmospheres

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