NA 027
DIN Standards Committee Optics and Precision Mechanics
Standards
[Withdrawn]
ISO 9202
ISO 9202
Jewellery - Fineness of precious metal alloys
Title (German)
Schmuck - Feingehalt von Edelmetall-Legierungen
Responsible national committee
NA 027-04-04 AA - Methods of analysis for determination of fineness of precious metals