本国际标准规定了在道路车辆用照明装置、光信号装置和逆反射装置上进行可复现光度测量和色度测量的要求，还提供了数据报告建议，并列出了按相应联合国法规要求记录已批准照明装置特性的主要设备、仪器和程序。
This International Standard provides requirements to perform reproducible photometric and colorimetric measurements on road illumination devices, light-signalling devices and retroreflective devices to be used in road vehicles. It also provides advice for reporting the data and lists major equipment, instrumentation and procedures to record properties of approved lighting devices according to requirements specified in corresponding UN regulations.