Jewellery - Determination of platinum in platinum jewellery alloys - ICP-OES method using yttrium as internal standard element
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Number of Standard:
CSN EN ISO 11494
Category:
420663
Pages:
24
Released:
01.04.2017
Catalog number:
501589
DESCRIPTION
CSN EN ISO 11494
CSN EN ISO 11494 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 optical emission spectrometry (ICP-OES). This method applies to platinum jewellery alloys that might contain silver, indium, iridium, gallium, copper, cobalt, nickel, tin, and ruthenium. However, this list is not exhaustive and care is always to be taken to investigate potential interference effects. This method is intended to be used as the recommended method for the determination of fineness in alloys covered by ISO 9202 up to 990 %. Original English text of CSN EN Standard. The price of the Standard included all amendments and correcturs.