BSI BS EN ISO 105-J03:2009

Current Revision
Textiles. Tests for colour fastness -- Calculation of colour differences

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BSI BS EN ISO 105-J03:2009

Textiles. Tests for colour fastness -- Calculation of colour differences

PUBLISH DATE 2009
PAGES 18
BSI BS EN ISO 105-J03:2009

This part of ISO 105 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 ΔEcmc(l:c) for the total colour difference quantifies the extent to which the two specimens do not match.

It permits the specification of a maximum value (tolerance) 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.

The method also provides a means for establishing the ratio of differences in lightness to chroma and to hue.

NOTE Annex A gives guidance on the interpretation of results. Annex B provides sample test data for use in checking computer programs. Annex C contains a sample computer program for calculating colour difference.

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