Test method for solvent extractables in petroleum waxes 石油蜡含油量测定法丁酮-甲苯法
2.
Platinum jewellery alloys - determination of platinum and palladium - gravimetric method after precipitation of diammonium hexachloroplatinate and dimethylglyoxime 铂合金首饰铂钯含量的测定氯铂酸铵重量法丁二酮肟重量法