Home / Standards / GB/T 21440.1-2008 GB/T 21440.1-2008 Active Instument for dam monitoring settlement gauge - Part 1: Hydraulic overflow settlement gauge 大坝监测仪器 沉降仪 第1部分:水管式沉降仪 Standard Type GBT ICS 07.060 CCS P10 Status 现行 Issue Date 2008-02-15 Implementation 2008-05-01 Responsible Dept 水利部 Drafting Unit N/A