HG/T 6141-2023
T/SDSCCE 015-2022
T/SDSCCE 003-2021
YS/T 1569.1-2022
GB/T 19720-2005
Platinum jewellery alloys-Determination of platinum and palladium-Gravimetric method after precipitation of diammonium hexachloroplatinate and dimethylglyoxime