介绍了部分欧洲国家铁路内燃机车和内燃动车的保有量和年龄结构。给出了几种排放标准规定的内燃机车废气排放极限值。说明了制定一种新排放标准需要以统一的测量循环为基础 ,而欧洲铁路排放标准测量循环有可能成为未来铁路柴油机的标准。正在制定的新的铁路排放标准将有可能成为一项ISO标准 ,因而将在全世界范围内实施 The ownership and age structure of diesel locomotives and diesel vehicles in some European countries are introduced. Several emission standards are given for diesel engine exhaust emission limits. Shows that the development of a new emission standard needs to be based on a uniform measurement cycle and the European railway emission standard measurement cycle is likely to become the standard for future railway diesel engines. The new railway emission standards being developed will likely become an ISO standard and will therefore be implemented around the world