International Organization for Standardization (ISO)
Status
2002-05
Latest
ISO 3694:1977
Scope
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.
ISO 3694:1977 history
1977ISO 3694:1977 Ammonium sulphate for industrial use; Determination of chloride ions content; Potentiometric method