本文件规定了使用gonio荧光光谱仪测量内部量子的方法 效率、外部量子效率、吸收率、发光辐射系数和相对 白光发光二极管用陶瓷荧光粉的荧光光谱 （LED）并在受到紫外线或蓝光激发时发出可见光。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies a method for use of a gonio-spectrofluorometer to measure internal quantum efficiency, external quantum efficiency, absorptance, luminescent radiance factor and relative fluorescence spectrum of ceramic phosphor powders which are used in white light-emitting diodes (LEDs) and emit visible light when excited by UV or blue light.All current amendments available at time of purchase are included with the purchase of this document.