Home / Standards / GB/T 26944.1-2011 GB/T 26944.1-2011 Active Tunnel environment detection equipment - Part 1: General rule 隧道环境检测设备 第1部分：通则 Standard Type GBT ICS 93.080.30;03.220.20 CCS R80 Status 现行 Issue Date 2011-07-19 Implementation 2012-05-01 Responsible Dept 国家标准委 Drafting Unit N/A