This part of ISO/IEC 80079 describes the test methods for the identification of combustible dust and combustible dust deposits in order to classify areas in which such substances occur for the purpose of selecting and installing electrical and mechanical equipment intended for use in the presence of combustible dust. The standard atmospheric conditions for determining the properties of combustible dusts are: temperature -20 °C to +60 °C; Pressure 80 kPa (0.8 bar) to 110 kPa (1.1 bar) and; Air with normal oxygen content, typically 21% v/v. The defined test procedures are not applicable to: recognized explosives, fuels (e.g. gunpowder, dynamite) or to substances and mixtures of substances that may behave similarly under certain circumstances or; Dusts from explosives and fuels that do not require atmospheric oxygen for combustion or pyrophoric substances.
EN ISO/IEC 80079-20-2:2016 Referenced Document
2014/34/EU-2014 DIRECTIVE OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL on the harmonisation of the laws of the Member States relating to equipment and protective systems intended for use in potentially explosive atmospheres (recast) ((Text with EEA relevance))
ASTM E1491-06 Standard Test Method for Minimum Autoignition Temperature of Dust Clouds*， 2024-04-20 Update
EN 13821:2002 Potentially explosive atmospheres - Explosion prevention and protection - Determination of minimum ignition energy of dust/air mixtures*， 2024-04-20 Update
EN 14034-1:2004 Determination of explosion characteristics of dust clouds - Part 1: Determination of the maximum explosion pressure Pmax of dust clouds (Incorporates Amendment A1: 2011)
ISO 4225:1994 Air quality; general aspects; vocabulary
ISO/IEC 80079-34:2011 Explosive atmospheres - Part 34: Application of quality systems for equipment manufacture
2017EN ISO/IEC 80079-20-2:2016/AC:2017 Explosive atmospheres - Part 20-2: Material characteristics - Combustible dusts test methods - Technical Corrigendum 1 (ISO/IEC 80079-20-2:2016/Cor 1:2017)
2016EN ISO/IEC 80079-20-2:2016 Explosive atmospheres - Part 20-2: Material characteristics - Combustible dusts test methods
EN ISO/IEC 80079-20-2:2016 Explosive atmospheres - Part 20-2: Material characteristics - Combustible dusts test methods has been changed from EN 61241-2-2:1995 Electrical Apparatus for Use in the Presence of Combustible Dust Part 2: Test Methods Section 2: Method for Determining the Electrical Resistivity of Dust in Layers.