Jewellery - Colours of gold alloys - Definition, range of colours and designation
STANDARD published on 1.9.2018
Designation standards: ČSN EN ISO 8654
Classification mark: 421602
Catalog number: 505177
Publication date standards: 1.9.2018
The number of pages: 24
Approximate weight : 72 g (0.16 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
This document specifies a limited number of colours of gold alloy and the method to measure colours.
It applies to objects made of gold alloys or coated by gold alloys