ISO-787-24 › 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

ISO-787-24 - 2ND EDITION - CURRENT


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The method specified provide an instrumental alternative to those described in ISO 787/16 and ISO 787/17. Equal masses of a coloured material are separately dispersed in the same mass of the same white pigment paste. The reflectivity of each dispersion is measured photometrically. From the corresponding values of K/S the relative tinting strength is given. For measurement of the relative scattering power equal masses of a white test material and an agreed reference pigment are separately dispersed in the same mass of the same black pigment paste. The reflectivity of each dispersion is measured photometrically at 550 nm. From the corresponding values of K/S the relative scattering power is given.

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Document Number

ISO 787-24:1985

Revision Level

2ND EDITION

Status

Current

Publication Date

Dec. 15, 1985

Committee Number

ISO TC 35/SC 2/WG 7