Home / Standards / GB/T 1423-1996 GB/T 1423-1996 Active Method of measurement of density for precious metals and their alloys 贵金属及其合金密度的测试方法 Standard Type GBT ICS 77.040.99 CCS H21 Status 现行 Issue Date 1996-11-04 Implementation 1997-04-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A