DIN Standards Committee Optics and Precision Mechanics
Jewellery and precious metals – Determination of silver – Potentiometry using potassium bromide (ISO 11427:2024); German version EN ISO 11427:2024
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
Order from DIN Media