Home / Standards / GB/T 34612-2017 GB/T 34612-2017 Active Measurement method for X-ray double crystal diffraction rocking curve of sapphire crystals 蓝宝石晶体X射线双晶衍射摇摆曲线测量方法 Standard Type GBT ICS 77.040 CCS H21 Status 现行 Issue Date 2017-10-14 Implementation 2018-05-01 Responsible Dept 国家标准委 Drafting Unit N/A