In-use vehicle pollutant emission limit standards,GB 18285-2018 and GB 3847-2018,were offi-cially implemented on May 1,2019.Compared with the old version of the standard,the types of pollutants have in-creased,the emission limit has been reduced,and the requirements for gas reference materials for testing have been significantly improved after the standard revision.In view of the revised content of the above two standards,this ar-ticle interprets and discusses the gas reference materials required by the standards in combination with the current status of the gas reference materials used for the detection of pollutants from in-use vehicles in China,and makes contributions for ensuring the accuracy and traceability of the mobile source pollutant emission detection value.
关键词
污染物/排放限值/国家标准/标准物质
Key words
pollutant/emission limit/standard/reference material
维普
万方数据