本标准规定了对LED灯、LED模块和LED灯具（LED设备）进行可再现光度和色度测量的要求。它还为数据报告提供建议。为LED设备提供可靠、准确的光度数据是设计良好照明系统和评估产品性能的基本要求。通过在特定的标准化测量条件下进行测量来获得这些数据，应确保不同实验室之间数据的一致性（在声明的测量不确定度范围内），并且可以在相同的基础上对不同的产品进行比较。本标准规定了LED灯、LED模块和LED灯具的电气、光度和色度测量要求，适用于交流或直流电源电压下的操作，可能适用于相关的LED控制装置。 LED灯引擎被同化为LED模块，并进行相应处理。本标准涵盖的光度和色度量包括总光通量、光效、部分光通量、光强分布、中心光束强度、亮度和亮度分布、色度坐标、相关色温（CCT）、显色指数（CRI）和角度颜色均匀性。本标准不包括基于OLED（有机LED）的LED封装和产品。本标准尤其旨在涵盖测试LED设备是否符合IEC TC 34“灯具和相关设备”发布的LED性能标准的光度和色度要求的测量方法。由于LED设备在几何形状和/或颜色方面提供了多种配置，因此每个配置都会单独考虑光度和色度性能。 国际标准草案已发送至CIE国家委员会征求意见，并出售给相关方。该标准仍有变化，可能尚未被称为CIE国际标准。经CIE NCs批准后，将作为CIE国际标准发布。

This standard provides requirements to perform reproducible photometric and colorimetric measurements on LED lamps, LED modules, and LED luminaires (LED devices). It also provides advice for the reporting of the data. The availability of reliable and accurate photometric data for LED devices is a basic requirement for designing good lighting systems and evaluating performance of products. By obtaining these data through measurements in specific normalized measuring conditions, the consistency of the data should be ensured between different laboratories (within the limits of the declared measurement uncertainty) and comparison of different products on the same basis is possible.The standard specifies the requirements for measurement of electrical, photometric, and colorimetric quantities of LED lamps, LED modules and LED luminaires, for operation with AC or DC supply voltages, possibly with associated LED control gear. LED light engines are assimilated to LED modules and handled accordingly. Photometric and colorimetric quantities covered in this standard include total luminous flux, luminous efficacy, partial luminous flux, luminous intensity distribution, centre-beam intensity, luminance and luminance distribution, chromaticity coordinates, correlated colour temperature (CCT), colour rendering index (CRI), and angular colour uniformity. This standard does not cover LED packages and products based on OLEDs (organic LEDs).The standard aims in particular to cover measurement methods for testing the compliance of LED devices with the photometric and colorimetric requirements of LED performance standards issued by IEC TC 34 "Lamps and related equipment".As LED devices offer a large variety of configurations in respect to geometry and/or colour, the photometric and colorimetric performances are considered individually for each configuration.The Draft International Standard has been sent to CIE National Committees for comments and sales to interested parties. It is still subject to changes and may not yet be referred to as a CIE International Standard. When approved by the CIE NCs, it will be published as a CIE International Standard.