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ISO 11427:2024

Jewellery and precious metals - Determination of silver - Potentiometry using potassium bromide

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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