表面化学分析. 采用辉光放电光发射光谱法分析锌和/或铝基金属涂层

[中文适用范围]： 本文件规定了一种辉光放电光学发射光谱法，用于测定由锌和/或铝基材料组成的金属表面涂层的厚度、单位面积质量（涂覆面积质量）和化学成分。考虑的合金元素为镍、铁、硅、铅和锑。该方法适用于锌含量在 0.01% 至 100% 之间；铝含量在 0.01% 至 100% 之间；镍含量在 0.01% 至 20% 之间；铁含量在 0.01% 至 20% 之间；硅含量在 0.01% 至 15% 之间；镁含量在 0.01% 至 20% 之间；铅含量在 0.005% 至 2% 之间；锑含量在 0.005% 至 2% 之间。注：由于环境和健康风险，铅和锑目前在产品中被避免使用，但本文件也适用于包含这些元素的较老产品。 [外文原描述]： ISO 16962:2017 specifies a glow-discharge optical-emission spectrometric method for the determination of the thickness, mass per unit area and chemical composition of metallic surface coatings consisting of zinc- and/or aluminium-based materials. The alloying elements considered are nickel, iron, silicon, lead and antimony. This method is applicable to zinc contents between 0,01 mass % and 100 mass %; aluminium contents between 0,01 mass % and 100 mass %; nickel contents between 0,01 mass % and 20 mass %; iron contents between 0,01 mass % and 20 mass %; silicon contents between 0,01 mass % and 15 mass %; magnesium contents between 0,01 mass% and 20 mass%; lead contents between 0,005 mass % and 2 mass %, antimony contents between 0,005 mass % and 2 mass %. NOTE Due to environmental and health risks, lead and antimony are avoided nowadays, but this document is also applicable to older products including these elements.