NEN-ISO 11494
Determination of platinum in platinum jewellery alloys - ICP-solution-spectrometric method using yttrium as internal standard element
inactive, Most Current
| Organization: | NEN |
| Publication Date: | 1 January 1994 |
| Status: | inactive |
| ICS Code (Jewellery): | 39.060 |
scope:
This standard method describes a procedure for the determination of platinum in jewellery platinum alloys preferably within the range of fineness as stated in ISO 9202 using inductively coupled plasma emission spectrometry. Preferentially the platinum content of the alloys lies between 850 per thousand mass and 970 per thousand mass platinum. Platinum jewellery alloys may contain iridium, palladium, gold, rhodium, copper, cobalt, ruthenium, gallium, chromium, indium and tungsten less than 5%. Interferences with the determination procedure by the presence of these alloying elements have not been observed.
Document History
NEN-ISO 11494
January 1, 1994
Determination of platinum in platinum jewellery alloys - ICP-solution-spectrometric method using yttrium as internal standard element
This standard method describes a procedure for the determination of platinum in jewellery platinum alloys preferably within the range of fineness as stated in ISO 9202 using inductively coupled...