Home / Standards / GB/T 21303-2017 GB/T 21303-2017 Active Specifications for water measurement of irrigation canal system 灌溉渠道系统量水规范 Standard Type GBT ICS 93.160 CCS P57 Status 现行 Issue Date 2017-11-01 Implementation 2018-05-01 Responsible Dept 水利部 Drafting Unit N/A