NA 078

DIN Standards Committee Pigments and Extenders

Project

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

Abstract

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.

Begin

2023-10-28

WI

00298159

Planned document number

prEN ISO 787-24 rev

Responsible national committee

NA 078-00-03 AA - General test methods for colorants and extenders  

Responsible european committee

CEN/TC 298 - Pigments and extenders  

previous edition(s)

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 787-24:1985)
1995-08

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Contact

Dr.

Florian Korinth

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10787 Berlin

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Fax: +49 30 2601-42833

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