电子电气产品中某些物质的测定 第7-1部分:六价铬比色法测定金属上无色和有色防腐镀层中的六价铬[Cr(VI)]  (GB/T 39560.701-2020/1EC 62321-7-1:2015)

Determination of certain substances in electrical and electronic products-Part 7-1;Hexavalent chromium-Presence of hexavalent chromium [Cr(VI)]in colourless and coloured corrosion-protected coatings on metals by the colorimetric methodpolybrominated diphe

发布时间： 2020-12-14

实施时间： 2021-07-01

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