DS/EN 31427:1994
Determination of silver in silver jewellery alloys-Volumetric(potentiometric)method using potassium bromide

Standard No.

DS/EN 31427:1994

Release Date

1994

Published By

Danish Standards Foundation

Status

Be replaced 2001-11

Replace By

DS/EN 31427/AC:2002

Latest

DS/EN 31427/AC:2002

Scope

This International Standard specifies a volumetric method for the determination of silver in silver jewel-lery 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 pre-cipitated before commencing titration, these el-ements do not interfere with this method of determination. NOTE 1 This method is intended to be used as the ref-eree method for the determination of fineness in the alloys covered by ISO 9202.

DS/EN 31427:1994 history

• 2002 DS/EN 31427/AC:2002 Determination of silver in silver jewellery alloys - Volumetric (potentiometric) method using potassium bromide
• 1994 DS/EN 31427:1994 Determination of silver in silver jewellery alloys-Volumetric(potentiometric)method using potassium bromide