BS 6923:1988
Current
The latest, up-to-date edition.
Method for calculation of small colour differences
Hardcopy , PDF
English
31-08-1988
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Foreword
Committees responsible
Method
1. Scope
2. Principle
3. Calculation
4. Interpretation of results
5. Test report
Appendices
A. Test data
B. Computer program
Tables
1. Tristimulus values for four daylight combinations
2. Test data for the CMC (1:1) formula
Figures
1. Derivation of chroma and hue difference descriptors
2. Computer program for colour differences
Describes a method using a modification of the internationally recognized CIELAB colour difference formula.
| Committee |
TCI/81
|
| DevelopmentNote |
Supersedes 86/43526 DC (09/2005) Reviewed and confirmed by BSI, February 2011. (01/2011)
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This British Standard provides a method of calculating the colour difference between two specimens of the same material, measured under the same conditions, such that the numerical value DE, the total colour difference, quantifies the perceptibility of the colour difference or the accept ability of the colour match. The latter permits the specification of a maximum value which depends only on the closeness of match required for a given end-use and not on the colour involved nor on the nature of the colour difference.
NOTE 1 Appendix A gives test data for use in checking computer programs, and Appendix B contains a computer program for determining colour difference.
NOTE 2 The titles of the publications referred to in this standard are listed on the inside back cover.
| Standards | Relationship |
| AS/NZS 1580.601.5:1994 | Identical |
| 93/314591 DC : DRAFT FEB 1994 | METHOD FOR INSTRUMENTAL COLOUR MEASUREMENT OF TEXTILES AND LEATHER |
| BS 3900-D10:1986 | Methods of test for paints Determination of colour and colour difference: calculation |
| BS 1006(1978) : AMD 6043 | METHODS OF TEST FOR COLOUR FASTNESS OF TEXTILES AND LEATHER |
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