Home / Standards / GB/T 30869-2014 GB/T 30869-2014 Active Test method for thickness and total thickness variation of silicon wafers for solar cell 太阳能电池用硅片厚度及总厚度变化测试方法 Standard Type GBT ICS 77.040 CCS H21 Status 现行 Issue Date 2014-07-24 Implementation 2015-02-01 Responsible Dept 国家标准委 Drafting Unit N/A