Home / Standards / GB/T 30654-2014 GB/T 30654-2014 Active Test method for lattice constant of III-nitride epitaxial layers Ⅲ族氮化物外延片晶格常数测试方法 Standard Type GBT ICS 77.040.20 CCS H21 Status 现行 Issue Date 2014-12-31 Implementation 2015-09-01 Responsible Dept 国家标准委 Drafting Unit N/A