Klenoty a drahé kovy - Ryzosti slitin ušlechtilých kovů (Norma k přímému použití jako ČSN).
NORMA vydána dne 1.12.2019
Designation standards: ČSN EN ISO 9202
Classification mark: 421601
Catalog number: 508405
Publication date standards: 1.12.2019
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN
This document specifies a range of fineness of precious metal alloys (excluding solders) recommended for use in the field of jewellery. NOTE There is a possibility that national legal requirements for the designation, marking, and stamping of finished articles exist in the respective countries