YS/T 957-2014
Ammonium chloride rhodium
DB53/T 841-2017
YS/T 1396.2-2020
YS/T 1395.2-2020
GB/T 19720-2005
Platinum jewellery alloys-Determination of platinum and palladium-Gravimetric method after precipitation of diammonium hexachloroplatinate and dimethylglyoxime