Home / Standards / GB/T 34301-2017 GB/T 34301-2017 Active Technical specifications for tornado damage investigation 龙卷灾害调查技术规范 Standard Type GBT ICS 07.060 CCS A47 Status 现行 Issue Date 2017-09-07 Implementation 2018-04-01 Responsible Dept 中国气象局 Drafting Unit N/A