OS GSO ISO 13756:2025
ISO 13756:2024
Omani Standard
Current Edition
·
Approved on
14 October 2025
Jewellery and precious metals — Determination of silver — Potentiometry using sodium chloride or potassium chloride
OS GSO ISO 13756:2025 Files
English
5 Pages
Current Edition
Reference Language
OMR
20.31
OS 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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