What does China IV mean?
2 Answers
China IV is the China 4 standard, represented by Roman numerals where I, II, III, IV, V, VI correspond to 1, 2, 3, 4, 5, 6 respectively. The China IV emission standard refers to the national fourth-stage motor vehicle pollutant emission standard. The main pollutants emitted by vehicles include HC, NOx, CO, PM, etc. The implementation of the China 4 standard aims to control and reduce vehicle pollutant emissions, keeping them below specified limits to protect the country's atmospheric environment and minimize harm to human health. After the implementation of the China IV emission standard, it requires a reduction of vehicle pollutant emissions by approximately 50% compared to the China III standard, with heavy-duty vehicle pollutant emissions reduced by about 30% and particulate matter emissions lowered by around 80%.
China IV is actually an abbreviation for the National Phase IV Motor Vehicle Emission Standards, which means that China has stricter control requirements for vehicle exhaust emissions, with the aim of reducing pollutant levels. I usually enjoy studying cars, and the China IV standards set certain limits, such as the emissions of carbon monoxide and nitrogen oxides not exceeding specific values, which makes vehicle engines operate more cleanly. I remember that around 2010, the China IV standards began to be implemented, and many new vehicles had to comply with this standard to be registered. If your car is an older China III or lower standard, the exhaust might produce more black smoke, but upgrading to China IV can save some fuel, potentially reducing the average fuel consumption per 100 kilometers slightly. Additionally, the environmental label will indicate China IV, which is crucial to note when buying a car. Choosing a China IV-compliant vehicle is not only environmentally friendly but also increases the likelihood of passing annual inspections and avoids penalties on the road. Overall, China IV is an important step in promoting green transportation. Although the initial investment is higher, the overall maintenance is simpler.
