Home / Standards / GB/T 19720-2024 GB/T 19720-2024 Active Jewellery and precious metals—Determination of platinum and palladium—Gravimetry using ammonium chloride and dimethylglyoxime 首饰和贵金属 铂、钯含量的测定 氯化铵重量法和丁二酮肟重量法 Standard Type GBT ICS 39.060 CCS Y 88 Status 现行 Issue Date 2024-03-15 Implementation 2024-10-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A