ISO 5631-1:2022 ✓ Most Recent

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

standard by International Organization for Standardization , 07/31/2022

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Full Description

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.

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Document History

  1. ISO 5631-1:2022

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

    • Most Recent

  2. ISO 5631-1:2015


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

    • Historical Version

  3. ISO 5631-1:2009


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

    • Historical Version

  4. ISO 5631:2000


    Paper and board - Determination of colour (C/2 degrees) - Diffuse reflectance method

    • Historical Version

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Published:

07/31/2022

File Size:

1 file

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This product is restricted and cannot be purchased in the following countries Ukraine, Russia, Belarus