Reference number
ISO 3333:1975
ISO 3333:1975
© ISO 2024
ISO 3333:1975
Ammonium sulphate for industrial use — Determination of copper content — Zinc dibenzyldithiocarbamate photometric method
Edition 1
1975-07
1975-07
Retirada
Resumen
Applicable to products of which the Cu content is more than 0,1 mg/kg. The detection bases on the formation of a coloured complex of copper and of zinc dibenzyldithiocarbamate and photometric measurement at a wavelength of about 435 nm.