Jewellery and precious metals - Fineness of solders used with precious metal jewellery alloys (ISO 22764:2020) (Endorsed by Asociación Espanola de Normalización in May of 2026.)
NORMA vydaná dňa 1.5.2026
Designation standards: UNE-EN ISO 22764:2026
Publication date standards: 1.5.2026
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE