Home / Standards / GB/T 14321-2008 GB/T 14321-2008 Abolished Testing method for quantities of α-Al2O3 phase in alumina with an X-ray diffractometer 刚玉磨料中α-Al2O3相X射线定量测定方法 Standard Type GBT ICS 25.100.70 CCS J43 Status 废止 Issue Date 2008-06-03 Implementation 2009-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会