GSO ISO 23345:2022

Jewellery and precious metals — Non destructive precious metal fineness confirmation by ED-XRF

标准号

GSO ISO 23345:2022

发布

2022年

发布单位

GSO

当前最新

GSO ISO 23345:2022

 

 

This document describes a non-destructive method to verify (confirm) the precious metal fineness of finished and semifinished jewellery item(s) considered homogeneous by ED-XRF (en...

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