GB/T 19720-2005
Platinum jewellery alloys-Determination of platinum and palladium-Gravimetric method after precipitation of diammonium hexachloroplatinate and dimethylglyoxime (English Version)
- Standard No.
- GB/T 19720-2005
- Language
- Chinese, Available in English version
- Release Date
- 2005
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2024-10
- Replace By
- GB/T 19720-2024
- Latest
- GB/T 19720-2024
- Scope
- This standard specifies the determination of platinum and palladium content in platinum alloy jewelry by gravimetric method. This standard applies to the purity range of platinum jewelry specified in GB 11887 and palladium in platinum alloys from 5‰ to 150‰.
GB/T 19720-2005 history
- 2024 GB/T 19720-2024 Jewelry and precious metals. Determination of platinum and palladium content. Ammonium chloride gravimetric method and diacetyl oxime gravimetric method.
- 2005 GB/T 19720-2005 Platinum jewellery alloys-Determination of platinum and palladium-Gravimetric method after precipitation of diammonium hexachloroplatinate and dimethylglyoxime
