Determination of certain substances in electrotechnical products - Part 7-2: Hexavalent chromium - Determination of hexavalent chromium (Cr(VI)) in polymers and electronics by the colorimetric method (IEC 62321-7-2:2017); German version EN 62321-7-2:2017
电工产品中某些物质的测定.第7-2部分:六价铬.用比色法测定聚合物和电子产品中的六价铬(Cr(VI))(IEC 62321-7-2-2017);德文版EN 62321-7-2:2017