Reference number
Ïã¸ÛÁùºÏ²Ê¿ª½± 11489:1995
Ïã¸ÛÁùºÏ²Ê¿ª½± 11489:1995
Determination of platinum in platinum jewellery alloys — Gravimetric determination by reduction with mercury(I) chloride
Edition 1
1995-04
Withdrawn
Ïã¸ÛÁùºÏ²Ê¿ª½± 11489:1995
19440
Withdrawn (Edition 1, 1995)

Abstract

Specifies a gravimetric method for the determination of platinum in platinum jewellery alloys, preferably within the range of fineness stated in Ïã¸ÛÁùºÏ²Ê¿ª½± 9202. The procedure applies specifically to platinum alloys incorporating palladium, iridium, rhodium, copper, cobalt, gold, ruthenium, gallium, chromium, indium and less than 5 % tungsten. Some modifications are indicated where palladium, iridium, rhodium, gold or ruthenium are present.

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