ISO/DIS 5631-2

Paper and board — Determination of colour by diffuse reflectance — Part 2: Outdoor daylight conditions (D65/10 degrees)

Publication date: Jul 19, 2022

General information

Current stage: 40.99 Effective date: Jul 6, 2021

Originator: ISO

Owner: ISO/TC 6

Type: International Standard

ICS: 85.060

Languages: English French

Buying

Status: Published

PDF - EC$183.61

Paper - EC$183.61

PDF and Paper - EC$367.22

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Scope

ISO 5631-2:2015 specifies a method for measuring the colour of paper and board by the diffuse reflectance method with the elimination of specular gloss.
It 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 previously adjusted to give the calibrated colourimetric value corresponding to CIE standard illuminant D65, using a fluorescent reference standard with an assigned CIE whiteness (D65/10°) value provided by an authorized laboratory, as described in ISO 11475.
ISO 5631-2:2015 is not applicable to coloured papers or boards that incorporate fluorescent dyes or pigments.

Life cycle

PREVIOUSLY

Revises
ISO 5631-2:2015

NOW

IN_DEVELOPMENT
ISO/DIS 5631-2
40.99 Full report circulated: DIS approved for registration as FDIS
Jul 6, 2021

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