ISO 9202:2019
ISO 9202:2019
Jewellery and precious metals - Fineness of precious metal alloysstandard by International Organization for Standardization, 05/01/2019
standard by International Organization for Standardization, 05/01/2019
ISO 9202:2019 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.