ISO 11494:2019

July 2019

International standard Current

Jewellery and precious metals - Determination of platinum in platinum alloys - ICP-OES method using an internal standard element

This document describes an analytical procedure for the determination of platinum in platinum alloys with a nominal content up to 990 ‰ (parts per thousand), including alloys according to ISO 9202.

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Main informations

Collections

International ISO standards

Publication date

July 2019

Number of pages

6 p.

Reference

ISO 11494:2019

ICS Codes

39.060 Jewellery

Print number

Sumary

Jewellery and precious metals - Determination of platinum in platinum alloys - ICP-OES method using an internal standard element

This document describes an analytical procedure for the determination of platinum in platinum alloys with a nominal content up to 990 ‰ (parts per thousand), including alloys according to ISO 9202.

Replaced standards (1)

ISO 11494:2014

December 2014

International standard Cancelled

Jewellery - Determination of platinum in platinum jewellery alloys - ICP-OES method using yttrium as internal standard element

<p>ISO 11494:2014 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).</p> <p>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.</p>

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