General methods of test for pigments and extenders - Part 24: Determination of relative tinting strength of coloured pigments and relative scattering power of white pigments - Photometric methods
This part of EN 20787 describes photometric methods of test for comparing in the visible spectrum - the tinting strength of two similar (see note 1) coloured pigments dispersed in an alkyd resin without a drier; - the scattering power of two white pigments of the same type dispersed in an alkyd resin without a drier.