>ISO Standards>ISO 3333:1975-Ammonium sulphate for industrial use-Determination of copper content-Zinc dibenzyldithiocarbamate photometric method
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immediate downloadReleased: 1975
ISO 3333:1975
Ammonium sulphate for industrial use
CURRENCY
Standard´s number:
ISO 3333:1975
Pages:
3
Edition:
1
Released:
1975
Language:
English
DESCRIPTION
ISO 3333:1975
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.