标准摘要
[中文适用范围]： 本标准规定了消除镜面光泽度的漫反射法测量纸和纸板颜色的方法。 本文件不适用于含有荧光染料或颜料的彩色纸或纸板。 它可用于测定含有荧光增白剂的纸张或纸板的颜色，前提是测试件上的照明的紫外线含量已调整为符合 CIE 光源 C 中的紫外线含量，并使用满足要求的荧光参考标准符合 3 级国际荧光参考标准 (IR3) 的规定 [外文原描述]： This document specifies a method for measuring the colour of paper and board by the diffuse reflectance method with the elimination of specular gloss. This document is not applicable to coloured papers or boards which incorporate fluorescent dyes or pigments. It may be used to determine the colour of papers or boards which contain fluorescent whitening agents provided the UV content of the illumination on the test piece has been adjusted to conform to that in the CIE illuminant C, using a fluorescent reference standard that fulfils the requirements for international fluorescent reference standards of level 3 (IR3) as prescribed by ISO 2469 with an assigned ISO brightness value provided by an authorized laboratory, as described in ISO 2470‑1.
英文名称Paper and board — Determination of colour by diffuse reflectance — Part 1: Indoor daylight conditions (C/2°)