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ISO 5631-1:2022

Current Revision

Paper and board - Determination of colour by diffuse reflectance - Part 1: Indoor daylight conditions (C/2°)

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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.


SDO ISO: International Organization for Standardization
Document Number ISO 5631
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 6
Publish Date Document Id Type View
Not Available ISO 5631-1:2022 Revision