Jewellery and precious metals - Non destructive precious metal fineness confirmation by ED-XRF
NORM herausgegeben am 1.8.2022
Designation standards: ČSN ISO 23345
Classification mark: 421672
Catalog number: 514603
Note: UNGÜLTIG
Publication date standards: 1.8.2022
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Czech technical standard
Kategorie: Technische Normen ČSN