NEN-EN-ISO 787-26
General methods of tests for pigments and extenders - Part 26: Determination of relative tinting strength and residual colour difference of colorants - Weighted K/S value method
| Organization: | NEN |
| Publication Date: | 1 April 1998 |
| Status: | pending |
| Page Count: | 11 |
| ICS Code (Pigments and extenders): | 87.060.10 |
scope:
Specifies a method for determining the relative tinting strength of colorants and the residual colour difference between the test colorant and a reference colorant when the values of the tinting-strength criterion are the same. The method is suitable for testing of colorants in reduction with a white pigment, in textiles, papers, solution, transparent coating materials or printing inks on a white substrate if relevant theories are used. The calculations in clause 7 are carried out only for systems where the Kubelka-Munk theory is applicable.
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