BS ISO 5631-1:2015
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Paper and board. Determination of colour by diffuse reflectance Indoor daylight conditions (C/2°)
Hardcopy , PDF
31-08-2022
English
30-11-2015
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Sampling and conditioning
7 Preparation of test pieces
8 Procedure
9 Calculation
10 Expression of results
11 Precision
12 Test report
Annex A (normative) - Spectral characteristics of
reflectometers for determining tristimulus values
Bibliography
Defines a method for measuring the colour of paper and board by the diffuse reflectance method with the elimination of specular gloss.
| Committee |
PAI/11
|
| DevelopmentNote |
Supersedes BS ISO 5631 & 08/30181295 DC. (07/2010) Supersedes 15/30302582 DC. (11/2015)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
This part of ISO5631 specifies a method for measuring the colour of paper and board by the diffuse reflectance method with the elimination of specular gloss. This part of ISO5631 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 ISO2469 with an assigned ISO brightness value (C/2°) provided by an authorized laboratory, as described in ISO2470‑1 .
| Standards | Relationship |
| ISO 5631-1:2015 | Identical |
| ISO 11664-3:2012 | Colorimetry Part 3: CIE tristimulus values |
| ISO 11664-4:2008 | Colorimetry Part 4: CIE 1976 L*a*b* Colour space |
| ISO 187:1990 | Paper, board and pulps — Standard atmosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samples |
| ISO 11664-1:2007 | Colorimetry Part 1: CIE standard colorimetric observers |
| ISO 2470-1:2016 | Paper, board and pulps Measurement of diffuse blue reflectance factor Part 1: Indoor daylight conditions (ISO brightness) |
| ISO 186:2002 | Paper and board — Sampling to determine average quality |
| ISO 2469:2014 | Paper, board and pulps — Measurement of diffuse radiance factor (diffuse reflectance factor) |
| ISO 11664-2:2007 | Colorimetry — Part 2: CIE standard illuminants |
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