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
Determination of certain substances in electrical and electronic products—Part 3-1: Screening lead, mercury, cadmium, total chromium and total bromine by X-ray fluorescence spectrometry