GB/T 41368-2022 Technical specification for hydrological data auto-acquisition and transmission system

GB/T 15966-2017 Primary parameters and general technical conditions for hydrologic instruments GB/T 35138-2017 Measurement of fluid flow in closed conduits—Ultrasonic transit-time meters for liquid CJ/T 364-2011 Online calibration requirement for piping electromagnetic flowmeter JJG(气象) 005 SL 537 GB/T 11828.2-2005 Instruments for stage measurement—Part 2:Pressure-type stage guage GB/T 11828.2-2022 Instruments for stage measurement—Part 2:Pressure-type stage gauge GB/T 11828.4-2011 Instruments for stage measurement—Part 4:Ultrasonic stage gauge GB/T 21327-2007 Evaporator of water surface GB/T 21327-2019 Evaporator of water surface GB/T 21978.2-2014 Instrument for precipitation observation—Part 2:Tipping bucket rainfall sensor GB/T 21978.6-2008 Instrument for precipitation observation—Part 6:Melted snow type rain and snow recorder GB/T 30950-2014 Gate opening meter NY/T 1782-2009 Soil moisture monitoring techniques for farmland standards NY/T 3180-2018 Soil moisture monitoring data collection specifications SL/T 21-2015 SL/T 21-2015 Standard for Observing Precipitation Amount SL 21-2006 Rainfall Observation Standards SL/T 364-2015 Soil moisture monitoring specifications SL 364-2006 Soil moisture monitoring specifications SL 588-2013 SL 588-2013 Water Resources Information Technology Project Acceptance Standards SL 630-2013 Water Surface Evaporation Observation Specification SL/T 651-2014 SL/T 651-2014 refers to the Hydrological Monitoring Data Communication Protocol SL 21-1990 Rainfall Observation Standards (SL 21-1990) GB 50179-2015 Code for liquid flow measurment in open channels GB/T 11828.4-2025 Instruments for stage measurement—Part 4:Ultrasonic stage recorder GB/T 50095-2014 Water-related basic terminology and symbols standard (with article explanations) GB/T 50138-2010 Standard for stage observation NY/T 1782-2025 Soil moisture monitoring techniques for farmland standards