Reference number
ISO 3694:1977
ISO 3694:1977
© ISO 2024
ISO 3694:1977
Ammonium sulphate for industrial use — Determination of chloride ions content — Potentiometric method
Edition 1
1977-12
1977-12
Retirada
Resumen
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.