NS-EN ISO 11494:2019现行
Jewellery and precious metals - Determination of platinum in platinum alloys - ICP-OES method using an internal standard element (ISO 11494:2019)
出版：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
基本信息
标准编号： NS-EN ISO 11494:2019
发布时间：2019/11/1 0:00:00
标准类别：Standard
出版单位：Norwegian Standards (Norges Standardiseringsforbund)
标准页数：0
标准简介
This document describes an analytical procedure for the determination of platinum in platinum alloys with a nominal content up to 990 ‰ (parts per thousand), including alloys according to ISO 9202.
本标准替代的旧标准
