What are the defining standard requirements for China V vehicles?
2 Answers
China V vehicles are defined by the following standard requirements: 1. The carbon monoxide emissions per kilometer driven must not exceed 1000 milligrams; 2. The non-methane hydrocarbon emissions per kilometer driven must not exceed 68 milligrams; 3. The nitrogen oxide emissions per kilometer driven must not exceed 60 milligrams; 4. The particulate matter emissions per kilometer driven must not exceed 4.5 milligrams. The China V standard is the fifth-stage national standard for motor vehicle pollutant emissions. It imposes stricter limits on nitrogen oxides, hydrocarbons, carbon monoxide, and particulate matter emissions from motor vehicles. The purpose is to reduce and prevent environmental pollution caused by vehicle exhaust, protect the ecological environment, and ensure human health.
The definition criteria for China National V vehicles primarily target vehicle exhaust emissions, referring to the National Fifth Stage Motor Vehicle Emission Standards. From my observation, the standards impose stringent requirements on both gasoline and diesel vehicles. For example, for gasoline vehicles, the limits include carbon monoxide (CO) not exceeding 1.0 gram per kilometer, hydrocarbons (HC) plus nitrogen oxides (NOx) not exceeding 0.1 gram, and very low particulate matter (PM) emissions. For diesel vehicles, the nitrogen oxide limits are even stricter, typically around 0.4 gram per kilometer. These standards are enforced through specific testing methods, such as laboratory cycle tests during new vehicle certification, ensuring the engine meets performance standards under simulated driving conditions. The China National V standards were gradually implemented in some cities starting in 2013 and became mandatory nationwide in 2017, requiring upgrades to the engine management systems of both new and used vehicles to reduce air pollution and improve fuel efficiency. I believe the underlying purpose is to promote a greener automotive industry while enhancing overall vehicle performance. Of course, these standards also influence vehicle owners' choices when purchasing and maintaining vehicles. It is advisable to check the vehicle's environmental label to confirm compliance with China National V standards when selecting a car.
