ISO 13756:2024Published

Jewellery and precious metals — Determination of silver — Potentiometry using sodium chloride or potassium chloride

Joaillerie, bijouterie et métaux précieux — Dosage de l'argent — Méthode potentiométrique utilisant le chlorure de sodium ou le chlorure de potassium

Abstract / scope

This document specifies a volumetric method for the determination of silver on a material considered homogeneous. The silver content of the sample lies preferably between (100 and 999,0) parts per thousand (‰) by mass. Fineness above 999,0 ‰ can be determined using a spectroscopy method by difference (e.g. ISO 15096).

This method is intended to be used as the reference method for the determination of fineness in alloys covered by ISO 9202.

Life cycle

Replaces

ISO 13756:2015WithdrawnJewellery — Determination of silver in silver jewellery alloys — Volumetric (potentiometric) method using sodium chloride or potassium chlorideInternational Standard · Published 20 Jan 2015 · ISO/TC 174