Home / Standards / GB/T 37049-2018 GB/T 37049-2018 Active Test method for the content of metal impurity in electronic grade polysilicon—Inductively coupled-plasma mass spectrometry method 电子级多晶硅中基体金属杂质含量的测定 电感耦合等离子体质谱法 Standard Type GBT ICS 77.040.30 CCS H17 Status 现行 Issue Date 2018-12-28 Implementation 2019-04-01 Responsible Dept 国家标准委 Drafting Unit N/A