20 1 July 91Where was the National Sixth implemented?
Article 6 The national motor vehicle pollutant emission standards refer to the standards formulated for the implementation of the Environmental Protection Law of People's Republic of China (PRC) and the Air Pollution Prevention and Control Law of People's Republic of China (PRC), to prevent and control the environmental pollution caused by the exhaust of compression-ignition and gas-fuel ignition engines, to protect the ecological environment and to safeguard human health.
It includes two parts, namely, the pollutant emission limits and measurement methods for light vehicles (the sixth stage in China) and the pollutant emission limits and measurement methods for heavy diesel vehicles (the sixth stage in China).
Extended data:
Content interpretation
The two departments issued "Emission Limits and Measurement Methods of Light Vehicle Pollutants (China Phase VI)".
Recently, the Ministry of Environmental Protection and the General Administration of Quality Supervision, Inspection and Quarantine jointly issued the Emission Limits and Measurement Methods of Light Vehicles (China Phase VI) (hereinafter referred to as the National Six Standards for Light Vehicles), which announced the emission requirements and implementation time of light vehicles in the sixth phase.
In recent years, China's motor vehicle emission standards have been gradually improved. 200 1, the first phase of national emission standards for motor vehicles began to be implemented. After 15 years of development, the fourth-stage national emission standard has been implemented nationwide, and the fifth-stage emission standard has been implemented in key areas. The emission of pollutants from bicycles has been reduced by more than 90%, which has effectively promoted the technological upgrading of the automobile industry.
In order to further strengthen the prevention and control of motor vehicle pollution, reduce emissions from the source, and implement the requirements of the Outline of the Thirteenth Five-Year Plan for National Economic and Social Development, the Ministry of Environmental Protection and the General Administration of Quality Supervision, Inspection and Quarantine issued the national VI standard for light vehicles.
The national ⅵ emission standard for light vehicles has changed the way of equivalent conversion into European emission standards in the past, and invited the automobile industry to participate in the whole process of compilation, fully absorbing the opinions and suggestions of experts, scholars and business circles. The compilation team has carried out a lot of investigation and research work, * * * analyzed and summarized the emission data of 8,600 national five vehicles, investigated the mileage of 500,000 light vehicles, and designed and conducted verification tests.
There are six breakthroughs in the technical content of national standards for light vehicles. First, the globally unified light vehicle test procedure was adopted, which tightened the test requirements in an all-round way, effectively narrowed the gap between laboratory certified emissions and actual use emissions, and laid the foundation for coordinated control of fuel consumption and emissions;
Secondly, the introduction of RDE improves the emission control level of vehicles in actual use, which is beneficial to supervision and can effectively prevent cheating in actual emission exceeding the standard;
Third, the principle of fuel neutrality is adopted, and no loose limits are set for nitrogen oxides in diesel vehicles and particulate matter in gasoline vehicles;
Fourth, strengthen the control of VOCs emission in an all-round way, introduce 48-hour evaporative emission test and VOCs emission test during refueling, and raise the control level of evaporative emission to over 90%.
The fifth is to improve the requirements of vehicle diagnosis system, increase the storage requirements of permanent fault codes and tamper-proof measures, and effectively prevent vehicles from exceeding the standard emission during use.
The sixth is to simplify the rules and judgment methods of the competent department for supervision and inspection of environmental compliance and in-use compliance, so as to make the operation more feasible.
In order to ensure that the automobile industry has enough preparation period to carry out the changes and upgrades of related models and power systems, as well as the opening and production preparation of models, the national six standards for light vehicles are implemented step by step, and two emission limit schemes, National Six A and National Six B, are established, which will be implemented in 2020 and 2023 respectively.
At the same time, key areas with special needs for atmospheric environmental management can implement the national six emission limits in advance. At present, the industrial production and oil consumption conditions for implementing this standard have also been preliminarily met. A number of light vehicle manufacturers have basically completed the development of prototype vehicles that meet the national standards for light vehicles. The General Administration of Quality Supervision, Inspection and Quarantine and the National Standards Committee have also approved the release of the sixth phase national standards for motor gasoline and diesel.
In the next step, the Ministry of Environmental Protection will actively coordinate relevant departments, effectively guarantee the implementation of the national six standards for light vehicles, further strengthen the supervision and inspection of environmental protection standards for motor vehicles, promote the upgrading of vehicle oil products, and effectively improve urban air quality.
Baidu Encyclopedia-National Sixth Stage Vehicle Pollutant Emission Standard
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