Jewellery and precious metals - Determination of gold - Cupellation method (fire assay) (ISO 11426:2021)
NORMA vydána dne 30.6.2021
Designation standards: UNE-EN ISO 11426:2021
Publication date standards: 30.6.2021
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Spanish technical standard
Kategorie: Technické normy UNE