Jewellery and precious metals - Determination of platinum - Gravimetry using ammonium chloride
STANDARD published on 1.9.2023
Designation standards: ČSN EN ISO 11210
Classification mark: 420661
Catalog number: 517422
Publication date standards: 1.9.2023
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
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