ISO 11494:2008 Jewellery - Determination of platinum in platinum jewellery alloys - Inductively coupled plasma (ICP) solution-spectrometric method using yttrium as internal standard element
This International Standard 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 %o (parts per thousand) and 950 %~ platinum.
NOTE This method can be used to analyse other contents of 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.
ISO 11494:2008 history
2019ISO 11494:2019 Jewellery and precious metals — Determination of platinum in platinum alloys — ICP-OES method using an internal standard element
2014ISO 11494:2014 Jewellery - Determination of platinum in platinum jewellery alloys - ICP-OES method using yttrium as internal standard element
2008ISO 11494:2008 Jewellery - Determination of platinum in platinum jewellery alloys - Inductively coupled plasma (ICP) solution-spectrometric method using yttrium as internal standard element