Jewellery. Determination of precious metals in 999 <sup>0</sup>/<sub>00</sub> gold, platinum and palladium jewellery alloys. Difference method using ICP-OES

Jewellery. Determination of precious metals in 999 0/00 gold, platinum and palladium jewellery alloys. Difference method using ICP-OES

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1   Scope

This International Standard specifies an analytical procedure for the determination of either platinum in platinum jewellery alloys, gold in gold jewellery alloys, or palladium in palladium jewellery alloys, with a nominal content of each precious metal of 999 ‰ (parts per thousand) by measuring specific elements. (See Tables A.1, A.2, and A.3.)
This International Standard specifies a method intended to be used as the recommended method for the determination of fineness in 999 ‰ alloys covered by ISO 9202.