GSO ISO 23345:2022

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


 

 

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标准号
GSO ISO 23345:2022
发布
2022年
发布单位
GSO
当前最新
GSO ISO 23345:2022
 
 
适用范围
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 (energy dispersive X-ray fluorescence), including alloys according to ISO 9202. This document is not suitable for any coated items. WD-XRF (wavelength dispersive X-ray fluorescence) equipment cannot be used.

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