ISO/IEC 62321-7-1 ：2015 英文原版标准

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IEC 62321-7-1-2015 Determination of certain substances in electrotechnical products - Part 7-1 : Hexavalent chromium - Presence of hexavalent chromium (Cr(VI)) in colourless and coloured corrosion-protected coatings on metals by the colorimetric method
BS EN 62321-7-1-2015 Determination of certain substances in electrotechnical products Part 7-1: Determination of the presence of hexavalent chromium (Cr(VI)) in colorless and colored corrosion-protected coatings on metals by the colorimetric method