ISO 11427:1993
Determination of silver in silver jewellery alloys — Volumetric (potentiometric) method using potassium bromide
Reference number
ISO 11427:1993
Edición 1
1993-05
Retirada
ISO 11427:1993
19367
Retirada (Edición 1, 1993)

Resumen

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.

Informaciones generales

  •  : Retirada
     : 1993-05
    : Retirada de la Norma Internacional [95.99]
  •  : 1
     : 3
  • ISO/TC 174
    39.060 
  • RSS actualizaciones

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