ISO 11427:1993 PDF
Determination of silver in silver jewellery alloys — Volumetric (potentiometric) method using potassium bromide
Title (English):
ISO 11427:1993
Determination of silver in silver jewellery alloys — Volumetric (potentiometric) method using potassium bromide
- Document status:
- Withdrawn
- Format:
- Electronic (PDF)
- Number of pages:
- 3
- Publication date:
- May 6, 1993
- Edition:
- ISO IS 11427 edition 1 version 1
- ICS:
- 39.060
Description (English):
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.
Technical details
- Technical committee
- ISO/TC 174 - Jewellery and precious metals
- SKU
- ISO 11427:1993
