GB/T 45795-2025 Determination of PM10/PM2.5 mass concentration in atmosphere—Light scattering method

GB/T 4883-1985 Statistical interpretation of data—Detection and handling of outlying observations in normal sample GB/T 4883-2008 Statistical interpretation of data—Detection and treatment of outliers in the normal sample GB/T 39193-2020 Ambient air—Determination of particulate matter mass concentration—Gravimetric method HJ/T 93-2003 PM10 sampler technical requirements and testing methods HJ 93-2013 Technical requirements and testing methods for ambient air particulate samplers (PM10 and PM2.5) Airborne particulate matter (PM10 and PM2.5) sampler technical specifications and testing methods HJ 630-2011 Environmental Monitoring Quality Management Technical Guidelines HJ 655-2013 Installation and Acceptance Technical Specification for Continuous Automatic Monitoring System of Environmental Air Particulate Matter (PM10 and PM2.5) JJF 1659-2017 Calibration Specification for PM2.5 Mass Concentration Measurement Instruments JJG(气象)001 JJG(气象)002 JJG(气象)003 QX/T 118-2020 QX/T 118-2020 Meteorological Observation Data Quality Control - Surface QX/T 118-2010 Quality control of surface meteorological observational data QX/T 305-2015 Technical Specifications for Weighing Atmospheric Aerosol Filter Membranes with a Diameter of 47mm QX/T 509-2019 GRIMM 180 particle concentration monitoring instrument calibration specification