Numéro de référence
ISO 5374:1978
ISO 5374:1978
© ISO 2024
ISO 5374:1978
Phosphates condensés à usage industriel (y compris les industries alimentaires) — Dosage des chlorures — Méthode potentiométrique
Edition 1
1978-12
1978-12
Annulée
Résumé
Applicable to products having contents expressed in chlorine equal to or more than 30 mg/kg. Potentiometric titration of the chloride ions with standard volumetric silver nitrate solution in a nitric acid-acetone-water medium, at a temperature below 20 0C, using a silver measurement electrode and a colomel reference electrode or a pair of silver-mercury(I) sulphate electrodes. Has also been approved by the IUPAC.