ISO 5631-3:2014
Paper and board — Determination of colour by diffuse reflectance — Part 3: Indoor illumination conditions (D50/2 degrees)
ISO 5631-3:2014 specifies a method for measuring the colour of paper and board by the diffuse reflectance method with the elimination of specular gloss.
ISO 5631-3:2014 is primarily intended for measuring the colour of paper and board to be used in the graphic arts industry, where that industry specifies the measurement of colour under D50/2° conditions in accordance with ISO 13655. This method differs from ISO 13655, in that, the UV content of the illumination is adjusted to a different level.
The method 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 adjusted to conform to that in the CIE illuminant C, using a fluorescent reference standard provided by an authorized laboratory, as described in ISO 2470-1.
ISO 5631-3:2014 is not applicable to coloured papers or boards that incorporate fluorescent dyes or pigments.
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Section sec_1
Section sec_2
Section sec_3
Section sec_3.1
Section sec_3.2
Section sec_3.3
Section sec_3.4
Section sec_3.5
Section sec_3.6
Section sec_4
Section sec_5
Section sec_5.1
Section sec_5.1.2
Section sec_5.1.3
Section sec_5.2
Section sec_5.2.1
Section sec_5.2.2
Section sec_5.3
Section sec_5.3.1
Section sec_5.3.2
Section sec_5.4
Section sec_6
Section sec_7
Section sec_8
Section sec_8.1
Section sec_8.2
Section sec_8.3
Section sec_9
Section sec_9.1
Section sec_9.2
Section sec_9.3
Section sec_10
Section sec_11
Section sec_12
Annex sec_A
Table tab_A.1
Table tab_A.2
Reference ref_1
Reference ref_2
Reference ref_3
Reference ref_4
Reference ref_5
Reference ref_6
Reference ref_7
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
9.1 CIE tristimulus values
9.2 CIELAB coordinates
9.3 Dispersion of the results
10 Expression of results
11 Precision
12 Test report
Annex A (normative) Calculation of tristimulus values
Bibliography
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Section sec_1
Section sec_2
Section sec_3
Section sec_3.1
Section sec_3.2
Section sec_3.3
Section sec_3.4
Section sec_3.5
Section sec_3.6
Section sec_4
Section sec_5
Section sec_5.1
Section sec_5.1.2
Section sec_5.1.3
Section sec_5.2
Section sec_5.2.1
Section sec_5.2.2
Section sec_5.3
Section sec_5.3.1
Section sec_5.3.2
Section sec_5.4
Section sec_6
Section sec_7
Section sec_8
Section sec_8.1
Section sec_8.2
Section sec_8.3
Section sec_9
Section sec_9.1
Section sec_9.2
Section sec_9.3
Section sec_10
Section sec_11
Section sec_12
Annex sec_A
Table tab_A.1
Table tab_A.2
Reference ref_1
Reference ref_2
Reference ref_3
Reference ref_4
Reference ref_5
Reference ref_6
Reference ref_7
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
9.1 CIE tristimulus values
9.2 CIELAB coordinates
9.3 Dispersion of the results
10 Expression of results
11 Precision
12 Test report
Annex A (normative) Calculation of tristimulus values
Bibliography