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ISO 11427:1993

May 1993 Withdrawn

Note: Latest version: ISO 11427:2024

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Determination of silver in silver jewellery alloys — Volumetric (potentiometric) method using potassium bromide — Technical Corrigendum 1 Withdrawn ISO 11427:1993/Cor 1:1994 Corrigendum from Publication date: Oct 1994 Language: English, French Services: Online, Online + Pdf

Abstract

The principle of the method specified is dissolving the sample in dilute nitric acid and determining the silver content of the resulting solution by titration with standard potassium bromide solution, using a potentiometric indication of the equivalence point. The alloys, preferably within the range of fineness stated in ISO 9202, 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.

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Standard from ISO
Published: May 6 1993
Withdrawn: October 29 2014
Period for objection until: March 25 1992
Edition: 1
Document type: IS
Pages
ISBN:

Publisher: ISO
Distributor: ISO
ICS: 39.060
International TC: ISO/TC 174

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Revised by: ISO 11427:2014
Adopted by: NF EN 31427:1995
Adopted by: SN EN 31427:1994

ISO 11427:1993

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ISO 11427:2024

ISO 11427:2014

ISO 11427:1993

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Version history Related Corrigenda and Amendments (1)

ISO 11427:1993/Cor 1:1994

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ISO 11427:2024

ISO 11427:2014

ISO 11427:1993

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