EN ISO 11427:2016

Name: EN ISO 11427:2016
Brand: CEN

Withdrawn

Jewellery - Determination of silver in silver jewellery alloys - Volumetric (potentiometric) method using potassium bromide (ISO 11427:2014)

Withdrawn date

04-30-2017

Published date

10-12-2016

Publisher

Comite Europeen de Normalisation

European foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Sampling
7 Procedure
8 Calculation and expression of results
9 Test report
Bibliography

The method of ISO 11427:2014 describes a volumetric method for the determination of silver in jewellery alloys, preferably within the range of fineness stated in ISO 9202.These alloys may contain copper, zinc, cadmium, and palladium. Apart from palladium, which must be precipitated before commencing titration, these elements do not interfere with this method of determination.This method is intended to be used as the referee method for the determination of fineness in alloys covered by ISO 9202.

Committee	CEN/BT
DevelopmentNote	Supersedes EN 31427. (10/2016)
DocumentType	Standard
PublisherName	Comite Europeen de Normalisation
Status	Withdrawn
Supersedes	EN 31427:1994/AC:1994

Standards	Relationship
NEN EN ISO 11427 : 2016	Identical
NS EN ISO 11427 : 2016	Identical
UNI EN ISO 11427 : 2016	Identical
SS-EN ISO 11427 : 2016	Identical
DIN EN ISO 11427 E : 2016	Identical
DIN EN ISO 11427:2016-12	Identical
PN EN ISO 11427 : 2016	Identical
ISO 11427:2014	Identical
I.S. EN ISO 11427:2016	Identical
BS EN ISO 11427:2016	Identical
NF EN ISO 11427 : 2017	Identical
SN EN ISO 11427 : 2018	Identical
UNE-EN ISO 11427:2017	Identical
DS EN ISO 11427 : 2016	Identical

ISO 9202:2014	Jewellery Fineness of precious metal alloys
ISO 11596:2008	Jewellery Sampling of precious metal alloys for and in jewellery and associated products