Determination of silver in silver jewellery alloys. Volumetric (potentiometric) method using potassium bromide
€165.00
Method for measuring and designating the size of rings used in jewellery
Specification for colours of gold alloys
€95.00
Jewellery and precious metals — Fineness of precious metal alloys
This product is not for sale, please contact us for more information
Jewellery — Consumer confidence in the diamond industry
€77.00
