Standards
Current Category: CN-HJ - Environmental protection
HJ 1228-2021 National Technical Guidelines for Emission Standards of Atmospheric Pollutants from Mobile Sources
This standard specifies the basic principles and technical approach for formulating air pollutant emission standards for mobile sources, the determination of the main technical content, the feasibility analysis of standard implementation, the structure of the standard text, and the main contents of the standard preparation notes, etc. This standard applies to the formulation of national air pollutant emission standards for mobile sources.
HJ 1240-2021 HJ 1240-2021 Determination of gaseous pollutants (SO2, NO, NO2, CO, CO2) from stationary sources of pollution by portable Fourier transform infrared spectroscopy
This standard specifies the portable Fourier transform infrared spectrometry method for measuring gaseous pollutants (SO2, NO, NO2, CO, CO2) in waste gas from fixed pollution sources. This standard is applicable to the measurement of gaseous pollutants (SO2, NO, NO2, CO, CO2) in waste gas from fixed pollution sources. The detection limits of SO2, NO, and CO are all 1 mg/m3, and the measurement lower limits are all 4 mg/m3; the detection limit of NO2 is 3 mg/m3, and the measurement lower limit is 12 mg/m3; the detection limit of CO2 is 1 g/m3, and the measurement lower limit is 4 g/m3.
HJ 653-2021 Technical requirements and testing methods for continuous automatic monitoring system of ambient air particulate matter (PM10 and PM2.5)
This standard specifies the technical requirements, performance indicators, and testing methods for continuous automatic monitoring systems of ambient air particulate matter (PM10 and PM2.5). This standard applies to the design, production, and testing of continuous automatic monitoring systems of ambient air particulate matter (PM10 and PM2.5).
HJ 1239.3-2021 Heavy-duty vehicle emission remote monitoring technical specification Part 3: Communication protocol and data format
This standard specifies the protocol structure, communication connection, packet structure and definition, and data unit format and definition for the remote monitoring and data transmission of heavy-duty vehicle emissions. This standard is applicable to the transmission of heavy-duty vehicle emission remote monitoring data.
HJ 1239.2-2021 Heavy-duty vehicle emission remote monitoring technical specification Part 2: Enterprise platform
This standard specifies the general requirements for enterprise platforms of heavy-duty vehicle emission remote monitoring, including platform registration, data flow, and functional requirements. This standard applies to the construction and operation of enterprise platforms for heavy-duty vehicle emission remote monitoring.
HJ 1239.1-2021 Heavy-duty vehicle emission remote monitoring technical specification Part 1: Vehicle-mounted terminal
This standard specifies the technical requirements for the on-board terminals of heavy-duty vehicle emission remote monitoring systems, including functional and performance requirements, testing methods, etc. This standard applies to devices installed on heavy-duty vehicles for collecting, storing, and transmitting vehicle OBD information and engine emission data.
HJ 1238-2021 Vehicle emission regular inspection information collection and transmission technical specifications
This standard specifies the framework for information collection and transmission during regular vehicle emission inspections and registration inspections, as well as the software functions and data collection and transmission requirements. This standard applies to the information collection and transmission during regular vehicle emission inspections and registration inspections.
HJ 1237-2021 Motor vehicle emission regular inspection specifications
This standard specifies the composition and technical requirements of the inspection system for motor vehicle emission inspection institutions, the requirements for daily operation and maintenance, standard materials, inspection technical requirements, data recording and modification, quality assurance, etc. This standard applies to motor vehicle emission inspection institutions conducting regular vehicle emission inspections and registration inspection. This standard applies to ecological and environmental authorities at the county level and above conducting supervision and management of motor vehicle emission inspection institutions in accordance with the law. This standard does not apply to motor vehicle environmental noise inspection and testing.
HJ 1236-2021 Remote sensing survey technical specification for risk sources of centralized surface water drinking water sources
This standard specifies the workflow, data preparation, remote sensing interpretation, on-site verification, quality control, and submission of results for remote sensing surveys of risk sources at centralized surface water drinking water sources using remote sensing technologies such as satellites and drones. This standard is applicable to remote sensing surveys of risk sources at centralized surface water drinking water sources and the establishment of electronic archives of all risk sources in centralized surface water drinking water source protection areas.
HJ 1235-2021 HJ 1235-2021 Inflow and outlet discharge port naming and coding rules for rivers (seas)
This standard specifies the naming and coding rules for discharge outlets into rivers (seas). This standard is applicable to the investigation and remediation of discharge outlets into rivers (seas).
HJ 1234-2021 Drone remote sensing interpretation technical specifications for the investigation and rectification of in-river (sea) discharge outlets
This standard specifies the workflow for the remote sensing interpretation of drones for the investigation and remediation of discharge outlets into rivers (seas), including interpretation preparation, interpretation objects and marking databases, remote sensing interpretation, quality control, and result submission. This standard is applicable to the first-level investigation of discharge outlets into rivers (seas) using drone images.