EN ISO 11210:2023现行
Jewellery and precious metals - Determination of platinum - Gravimetry using ammonium chloride (ISO 11210:2023)
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基本信息
标准编号： EN ISO 11210:2023
标准类别：Standard
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标准页数：0
标准简介
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. ISO15093).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.
