NF EN ISO 11210

NF EN ISO 11210

March 2023
Standard Current

Jewellery and precious metals - Determination of platinum - Gravimetry using ammonium chloride

This document specifies a gravimetric method for the determination of platinum on a material considered homogeneous. The platinum content of the sample lies preferably between 50 and 999 parts per thousand (‰) by mass. Fineness above 999 ‰ can be determined using a spectroscopy method by difference (e.g. ISO 15093).This method is also intended to be used as one of the recommended methods for the determination of fineness in jewellery alloys covered by ISO 9202.

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National standards and national normative documents

Publication date

March 2023

Number of pages

14 p.

Reference

NF EN ISO 11210

ICS Codes

39.060   Jewellery

Classification index

A06-205

Print number

1

International kinship

ISO 11210:2023

European kinship

EN ISO 11210:2023
Sumary
Jewellery and precious metals - Determination of platinum - Gravimetry using ammonium chloride

This document specifies a gravimetric method for the determination of platinum on a material considered homogeneous. The platinum content of the sample lies preferably between 50 and 999 parts per thousand (‰) by mass. Fineness above 999 ‰ can be determined using a spectroscopy method by difference (e.g. ISO 15093).

This method is also intended to be used as one of the recommended methods for the determination of fineness in jewellery alloys covered by ISO 9202.

Replaced standards (1)
NF EN ISO 11210
January 2017
Standard Cancelled
Jewellery - Determination of platinum in platinum jewellery alloys - Gravimetric method after precipitation of diammonium hexachloroplatinate

ISO 11210:2014 specifies a gravimetric method for the determination of platinum in platinum jewellery alloys, preferably within the range of fineness stated in ISO 9202. These alloys can contain 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.

Table of contents
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Principe
  • 5 Réactifs
  • 6 Appareillage
  • 7 Échantillonnage
  • 8 Mode opératoire
  • 9 Calcul et expression des résultats
  • 10 Rapport d'essai
  • Annexe A (informative) Exemple de dispositif de réduction
  • Bibliographie
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