Standard

DS/EN ISO 11427:2016

Smykker – Bestemmelse af sølv i sølvlegerede smykker – Volumetrisk (potentiometrisk) metode ved brug af kaliumbromid

Status
Gældende Checkmark
Type
Standard
Varenummer
M316151
Udgivelsesdato
2017-05-05
Komite

CEN/SS M21

Internationale relationer
Tooltip
ISO 11427:2014 IDT, EN ISO 11427:2016 IDT
Dansk udvalg
ICS grupper
Antal sider
18
Under revision

Scope

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.