Abstract

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 weight. 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.

Begin

2021-10-25

WI

CSM21016

Planned document number

DIN EN ISO 11427

Project number

02703303

Responsible national committee

NA 027-04-04 AA - Methods of analysis for determination of fineness of precious metals  

Responsible european committee

CEN/TC 410 - Jewellery and precious metals  

Responsible international committee

ISO/TC 174/WG 1 - Methods for determining fineness  

draft standard

Jewellery and precious metals - Determination of silver in silver alloys - Potentiometry using potassium bromide (ISO/DIS 11427:2023); German and English version prEN ISO 11427:2023
2023-03
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previous edition(s)

Jewellery - Determination of silver in silver jewellery alloys - Volumetric (potentiometric) method using potassium bromide (ISO 11427:2014); German version EN ISO 11427:2016
2016-12

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