ISO 787-24:1985

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

Publication date: Dec 19, 1985

General information

Current stage: 90.92 Effective date: Oct 27, 2023

Originator: ISO

Owner: ISO/TC 256

Type: International Standard

ICS: 87.060.10

Languages: French English

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Status: Published

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Scope

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.

Life cycle

PREVIOUSLY

Revises
ISO 787-24:1982

NOW

PUBLISHED
ISO 787-24:1985
90.92 Standard to be revised
Oct 27, 2023

REVISED BY

IN_DEVELOPMENT
ISO/AWI 787-24

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