Home / Standards / GB/T 4060-2018 GB/T 4060-2018 Active Test method for boron content in polycrystalline silicon by vacuum zone-melting method 硅多晶真空区熔基硼检验方法 Standard Type GBT ICS 77.040 CCS H17 Status 现行 Issue Date 2018-09-17 Implementation 2019-06-01 Responsible Dept 国家标准委 Drafting Unit N/A