Home / Standards / GB/T 20167-2012 GB/T 20167-2012 Active Physical test method of rare earth polishing powder - Determination of burnishing mass and scratch - Gravimetry 稀土抛光粉物理性能测试方法 抛蚀量和划痕的测定 重量法 Standard Type GBT ICS 77.120.99 CCS H65 Status 现行 Issue Date 2012-11-05 Implementation 2013-05-01 Responsible Dept 国家标准委 Drafting Unit N/A