# ISO 5631-1:2009 — Withdrawn and superseded ISO standards

For ISO 5631-1:2009, item title is Paper and board — Determination of colour by diffuse reflectance — Part 1: Indoor daylight conditions (C/2 degrees); status code is 9599; successor is ISO 5631-1:2015; withdrawn / published date is 2009-10-13, recorded from its source on 2026-08-05.

- **Identifier:** ISO 5631-1:2009 _(verified: appears in the quote below)_
- **Item title:** Paper and board — Determination of colour by diffuse reflectance — Part 1: Indoor daylight conditions (C/2 degrees) _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 5631-1:2015
- **Withdrawn / published date:** 2009-10-13 _(verified: appears in the quote below)_

## What the source says

> 44135,IS,,ISO 5631-1:2009,Paper and board — Determination of colour by diffuse reflectance — Part 1: Indoor daylight conditions (C/2 degrees),Papier et carton — Détermination de la couleur par réflectance diffuse — Partie 1: Conditions d'éclairage intérieur de jour (C/2 degrés),2009-10-13,1,['85.060'],ISO/TC 6,9599,[11713],[66538],"['en','fr']",10,"<p>ISO 5631-1:2009 specifies a method for measuring the colour of paper and board by the diffuse reflectance method with the elimination of specular gloss.</p><p>ISO 5631-1:2009 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 flu

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).