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 method
NORMA vydaná dňa 14.12.2020
Designation standards: GB/T 39560.701-2020
Publication date standards: 14.12.2020
Country: Chinese technical standard
Kategória: Technické normy GB