EN ISO 11210:2023
测定铂金合金首饰中的铂.沉淀氯亚铑酸铵后,使用重量法

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


 

 

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标准号
EN ISO 11210:2023
发布
2023年
发布单位
欧洲标准化委员会
当前最新
EN ISO 11210:2023
 
 
适用范围
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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