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ISO 11427:1993

Determination of silver in silver jewellery alloys — Volumetric (potentiometric) method using potassium bromide

Standard Details

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.

General Information

Status : WITHDRAWN
Standard Type: Main
Document No: ISO 11427:1993
Document Year: 1993
Pages: 3
Edition: 1

Life Cycle

WITHDRAWN

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WITHDRAWN
ISO 11427:1993
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