SS-EN ISO 11210:2023
Jewellery and precious metals - Determination of platinum - Gravimetry using ammonium chloride (ISO 11210:2023)
- 標準號
- SS-EN ISO 11210:2023
- 發布單位
- SIS
- 當前最新
- SS-EN ISO 11210:2023
- 被代替標準
- SS-EN ISO 11210:2016
- 適用范圍
- 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.