Home / Standards / GB/T 40296-2021 GB/T 40296-2021 Active Practical superconducting wires—Twist pitch measurement method of Nb-Ti and Nb3Sn composite superconductors 实用超导线 铌-钛(Nb-Ti)与铌三锡(Nb3Sn)复合超导体的扭距测量方法 Standard Type GBT ICS 77.040.99 CCS H21 Status 现行 Issue Date 2021-08-20 Implementation 2022-03-01 Responsible Dept 中国科学院 Drafting Unit N/A