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EVS-EN ISO 11427:2016

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

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Kehtetu alates 02.05.2024
Alusdokumendid
ISO 11427:2014; EN ISO 11427:2016
Tegevusala (ICS grupid)
39.060 Juveelitooted
Direktiivid või määrused
puuduvad

Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
02.05.2024
Põhitekst
01.11.2016
Põhitekst
01.01.2000
Põhitekst
EVS-EN 31427:2004
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.

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