NEN-EN-ISO 11494
Determination of platinum in platinum jewellery alloys - Method using inductively coupled plasma emission spectrometry on a solution with yttrium as internal standard
inactive
| Organization: | NEN |
| Publication Date: | 1 September 1999 |
| Status: | inactive |
| Page Count: | 11 |
| 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
October 1, 2016
Jewellery - Determination of platinum in platinum jewellery alloys - ICP-OES method using yttrium as internal standard element
NEN-EN-ISO 11494 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...
NEN-EN-ISO 11494
September 1, 1999
Determination of platinum in platinum jewellery alloys - Method using inductively coupled plasma emission spectrometry on a solution with yttrium as internal standard
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...