SS-ISO-5631-2 › Paper and board - Determination of colour by diffuse reflectance - Part 2: Outdoor daylight conditions (D65/10°) (ISO 5631-2:2022, IDT)
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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. 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 colorimetric 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. This document is not applicable to coloured papers or boards that incorporate fluorescent dyes or pigments.
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Designation Name
SS-ISO 5631-2:2022
Revision Level
2022 EDITION
Status
Current
Publication Date
Aug. 29, 2022
Language(s)
English
Page Count
20
International Equivalent
ISO 5631-2:2022(IDT)