ISO 11494:2008 PDF
Jewellery — Determination of platinum in platinum jewellery alloys — Inductively coupled plasma (ICP) solution-spectrometric method using yttrium as internal standard element
Jewellery — Determination of platinum in platinum jewellery alloys — Inductively coupled plasma (ICP) solution-spectrometric method using yttrium as internal standard element
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 6
- Дата публикации:
- 7 августа 2008 г.
- Издание:
- ISO IS 11494 edition 1 version 1
- ICS:
- 39.060
ISO 11494:2008 describes a method for the determination of platinum in platinum jewellery alloys, preferably within the range of fineness specified in ISO 9202, by means of inductively coupled plasma (ICP) emission spectrometry. The preferred platinum content of the alloys lies between 850 ‰ (parts per thousand) and 950 ‰ platinum. Platinum jewellery alloys can contain silver, indium, gallium, copper, cobalt, nickel, tin and ruthenium. The presence of these alloying elements has not been observed to interfere with the determination method. If other elements are alloyed, a check is made as to whether any interference occurs.
Технические детали
- Технический комитет
- ISO/TC 174 - Jewellery and precious metals
- SKU
- ISO 11494:2008