Home / Standards / GB/T 35309-2017 GB/T 35309-2017 Active Practice for evaluation of granular polysilicon by melter-zoner and spectroscopies 用区熔法和光谱分析法评价颗粒状多晶硅的规程 Standard Type GBT ICS 77.040 CCS H17 Status 现行 Issue Date 2017-12-29 Implementation 2018-07-01 Responsible Dept 国家标准委 Drafting Unit N/A