标准摘要
[中文适用范围]： ISO/IEC 80079 的这一部分描述了识别可燃粉尘和可燃粉尘沉积物的测试方法，以便对存在此类物质的区域进行分类，以便选择和安装用于存在可燃物的电气和机械设备。 灰尘可能允许。 测定可燃粉尘性质的大气标准条件为：温度-20℃至+60℃；压力 80 kPa (0.8 bar) 至 110 kPa (1.1 bar)；含氧量正常的空气，通常为 21% v/v。 规定的测试方法不适用于： 批准的爆炸物、推进剂（例如火药、炸药）或可能具有类似行为的物质和物质混合物；来自不需要大气氧气即可燃烧的爆炸物和燃料的粉尘或自燃物质。 [外文原描述]： ISO/IEC 80079-20-2:2016 is published as a dual logo standard and describes the test methods for the identification of combustible dust and combustible dust layers in order to permit classification of areas where such materials exist for the purpose of the proper selection and installation of electrical and mechanical equipment for use in the presence of combustible dust. The standard atmospheric conditions for determination of characteristics 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 test methods defined do not apply to: - recognized explosives, propellants (e.g. gunpowder, dynamite), or substances or mixtures of substances which may, under some circumstances, behave in a similar manner or - dusts of explosives and propellants that do not require atmospheric oxygen for combustion, or to pyrophoric substances. This first edition cancels and replaces the first edition of IEC 61241-2-1 published in 1994, the first edition of IEC 61241-2-2 published in 1993 and the first edition of IEC 61241-2-3 published in 1994, combining the requirements into a single document, and is considered to constitute a technical revision. Significant changes with respect to IEC 61241-2-1:1994, IEC 61241-2-2:1993 and IEC 61241-2-3:1994 can be found in the foreword of the document. The contents of the corrigendum of March 2017 have been included in this copy. Keywords: combustible dust
英文名称Explosive atmospheres - Part 20-2: Material characteristics - Combustible dusts test methods