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国际电工委员会发布了两项电子电器中有害物质的测试标准IEC 62321-7-2:2017和IEC 62321-8:2017,主要涉及六价铬和邻苯二甲酸酯。IEC 62321-7-2:2017部分取代IEC 62321:2008,规定了采用比色法定量测量聚合物和电子产品中六价铬含量的检测程序。该方法采用有机溶剂溶解,然后经过碱性消解过程提取样品中的六价铬。研究表明,该方法提
The International Electrotechnical Commission has released two test standards IEC 62321-7-2: 2017 and IEC 62321-8: 2017 for hazardous substances in electrical and electronic equipment, mainly involving hexavalent chromium and phthalates. Part of IEC 62321-7-2: 2017 replaces IEC 62321: 2008, which specifies the procedure for the quantitative determination of hexavalent chromium in polymers and electronic products by colorimetric methods. The method uses an organic solvent to dissolve, and then the hexavalent chromium in the sample is extracted through an alkaline digestion process. Research shows that the method is mentioned