Home / Standards / GB/T 34003-2017 GB/T 34003-2017 Active Detection method of impurity elements in boron nitride 氮化硼中杂质元素测定方法 Standard Type GBT ICS 49.025.99 CCS Q69 Status 现行 Issue Date 2017-07-12 Implementation 2018-02-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A