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EVS-EN ISO 787-24:2000

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

General information

Withdrawn from 02.11.2026
Base Documents
ISO 787-24:1985; EN ISO 787-24:1995
Directives or regulations
None

Standard history

Status
Date
Type
Name
02.11.2026
Main
01.01.2000
Main
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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