Standard

NEN-EN-ISO 11494:2016 en

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

  • This norm is withdrawn since 01-09-2019

53,43 64,65 Incl BTW

About norm

Status Withdrawn
Number of pages 9
Published on 01-10-2016
Language English
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 plasma optical emission spectrometry (ICP-OES). 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. This method is intended to be used as the recommended method for the determination of fineness in alloys covered by ISO 9202 up to 990 ‰.

Details

ICS-code 39.060
Dutch title Sieraden - Bepaling van het platinagehalte in platinalegeringen voor sieraden - ICP-OES methode met yttrium als intern standaardelement
English title Jewellery - Determination of platinum in platinum jewellery alloys - ICP-OES method using yttrium as internal standard element
Replaces
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