Ссылочный номер
ISO 11427:1993
ISO 11427:1993
Determination of silver in silver jewellery alloys — Volumetric (potentiometric) method using potassium bromide
Версия 1
1993-05
В время отменен
ISO 11427:1993
19367
Отозвано (Версия 1, 1993)

Тезис

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.

Общая информация

  •  : Отозвано
     : 1993-05
    : Отмена международного стандарта [95.99]
  •  : 1
  • ISO/TC 174
    39.060 
  • RSS обновления

Жизненный цикл

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