2022-02-23Ainstru
HJ 915-2017 Technical Specification for Surface Water Automatic Monitoring
2022-02-23Ainstru
HJ164-2020 instead of HJ/T 164-2004 Technical specification for groundwater environmental monitoring
2022-02-23Ainstru
GJW-03-SSG-002 National Surface Water Environmental Quality Monitoring Network Monitoring Task Instructions
2022-02-23Ainstru
HJ 660-2013 Technical regulations for environmental monitoring information transmission
2022-02-23Ainstru
HJ/T 175-2005 Technical Requirements and Testing Methods for Automatic Rainfall Monitor
2022-02-23Ainstru
HJ 731-2014 Coastal Water Quality Automatic Monitoring Technical Specification
2022-02-23Ainstru
HJ 1147-2020 Determination of pH Value of Water Quality by Electrode Method
2022-02-23Ainstru
HJ 535-2009 Replaces GB 7479-87 Water Quality-Determination of Ammonia Nitrogen-Nessleler Reagent Spectrophotometry
2022-02-23Ainstru
HJ/T 195-2005 Water quality-Determination of ammonia-nitrogen-Gas molecular absorption spectrometry
2022-02-23Ainstru