ISO 3694:1977
Withdrawn
Date published:
Ammonium sulphate for industrial use — Determination of chloride ions content — Potentiometric method
Applicable to products having chloride ion contents of equal to or more than 0.0005 % (m/m). Potentiometric titration of the ions with silver nitrate solution in a nitric acid-acetone-water medium, using a silver measurement electrode and a calomel referende electrode.
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ISO 3694:1977
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