PDF Standards ANSI/NEMA 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
standard by American National Standards Institute / National Electrical Manufacturers Association, 2023