EN ISO 11494:2016 Jewellery - Determination of platinum in platinum jewellery alloys - ICP-OES method using yttrium as internal standard element (ISO 11494:2014)
This International Standard describes a method for the determination of platinum in platinum jewelry alloys, preferably in the range of fineness as specified in ISO 9202. The determination is carried out using optical emission spectrometry with inductively coupled plasma (ICP-OES, en: inductive coupled plasma-optical emission spectrometer). This process is applicable to platinum jewelry alloys, which may contain silver, indium, iridium, gallium, copper, cobalt, nickel, tin and ruthenium. However, this list is not exhaustive and potential interference effects must be examined with caution. This method is intended as a recommended method for determining fineness in alloys up to 990 covered in ISO 9202.
EN ISO 11494:2016 Referenced Document
ISO 11596:2008 Jewellery - Sampling of precious metal alloys for and in jewellery and associated products
ISO 9202:2014 Jewellery - Fineness of precious metal alloys
EN ISO 11494:2016 history
2019EN ISO 11494:2019 Jewellery and precious metals - Determination of platinum in platinum alloys - ICP-OES method using an internal standard element (ISO 11494:2019)
2016EN ISO 11494:2016 Jewellery - Determination of platinum in platinum jewellery alloys - ICP-OES method using yttrium as internal standard element (ISO 11494:2014)