HJ 716-2014 Water quality determination of nitrobenzene compounds by gas chromatography-mass spectrometry

HJ/T 91-2002 Surface Water and Wastewater Monitoring Technical Specification HJ 91.1-2019 Sewage monitoring technical specifications HJ 91.2-2022 Surface Water Environmental Quality Monitoring Technical Specification GB 17378.1-1998 The specification for marine monitoring Part 1:General rules GB 17378.1-2007 The specification for marine monitoring—Part 1:General rules GB 17378.2-1998 The specification for marine monitoring Part 2:Data processing and quality control of analysis GB 17378.2-2007 The specification for marine monitoring—Part 2:Data processing and quality control of analysis GB 17378.3-1998 The specification for marine monitoring Part 3:Sample collection、storage and transportation GB 17378.3-2007 The specification for marine monitoring—Part 3:Sample collection, storage and transportation GB 17378.4-1998 The specification for marine monitoring Part 4:Seawater analysis GB 17378.4-2007 The specification for marine monitoring—Part 4:Seawater analysis GB 17378.5-1998 The specification for marine monitoring Part 5:Sediment analysis GB 17378.5-2007 The specification for marine monitoring—Part 5:Sediment analysis GB 17378.6-1998 The specification for marine monitoring Part 6:Organisim analysis GB 17378.6-2007 The specification for marine monitoring—Part 6:Organism analysis GB 17378.7-1998 The specification for marine monitoring Part 7:Ecological survey of offshore pollution and biological monitoring GB 17378.7-2007 The specification for marine monitoring—Part 7:Ecological survey for offshore pollution and biological monitoring HJ 164-2020 Groundwater environmental monitoring technical specifications HJ/T 164-2004 Groundwater environmental monitoring technical specifications