GSO ISO 13756:2025

ISO 13756:2024
Gulf Standard   Current Edition · Approved on 14 October 2025

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

GSO ISO 13756:2025 Files

English 5 Pages
Current Edition Reference Language
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GSO ISO 13756:2025 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.

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