GB/T 41481-2022 Development around the cleanliness of components and systems of road vehicles. The standard defines the definition and scope of cleanliness, covering the relevant components and systems of various types of road vehicles. Detail the cleanliness detection process, including how to select the appropriate sampling location and method, accurately analyze the collected contaminants, such as particle count, component identification, etc., and determine the cleanliness level accordingly. Adhering to this standard will help the automotive industry to accurately control the cleanliness of vehicle components and systems, reduce the risk of failure due to pollution, and improve vehicle Reliability and safety.