
Jewellery and precious metals - Fineness of solders used with precious metal jewellery alloys
STANDARD published on 1.8.2026
Designation standards: ČSN EN ISO 22764
Classification mark: 421669
Catalog number: 523887
Publication date standards: 1.8.2026
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
This document specifies the precious metal content in solders suitable for use in the production of jewellery made of precious metal alloys