
Jewellery and precious metals — Fineness of solders used with precious metal jewellery alloys
NORMA vydaná dňa 27.1.2020
Designation standards: ISO 22764:2020
Publication date standards: 27.1.2020
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: International technical standard
Kategória: Technické normy ISO