ISO 5631-3:2022 纸和纸板 漫反射法测定颜色 第3部分：室内照明条件下（D50/2°）

标准编号：ISO 5631-3:2022

中文名称：纸和纸板 漫反射法测定颜色 第3部分：室内照明条件下（D50/2°）

英文名称：Paper and board — Determination of colour by diffuse reflectance — Part 3: Indoor illumination conditions (D50/2°)

发布日期：2022-07

标准范围

本文件规定了一种通过消除镜面光泽的漫反射法测量纸张和纸板颜色的方法。本文件主要用于测量图形艺术行业中使用的纸张和纸板的颜色，该行业根据ISO13655.此方法不同于ISO13655，因为照明的UV含量调整到不同的水平。该方法可用于测定含有荧光增白剂的纸张或纸板的颜色，前提是已使用符合ISO2469，由授权实验室提供指定的ISO亮度值，如ISO2470？1.本文件不适用于含有荧光染料或颜料的彩色纸或纸板。

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 primarily intended for measuring the colour of paper and board to be used in the graphic arts industry, where that industry specifies the measurement of colour under D50/2° conditions in accordance with ISO 13655. This method differs from ISO 13655, in that the UV content of the illumination is adjusted to a different level.The method can be used to determine the colour of papers or boards that 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.This document is not applicable to coloured papers or boards that incorporate fluorescent dyes or pigments.

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