ISO 8781-2:1990

Pigments and extenders — Methods of assessment of dispersion characteristics — Part 2: Assessment from the change in fineness of grind

Publication date: 15 nën 1990

General information

Current stage: 90.93 Effective date: 6 mar 2023

Originator: ISO

Owner: ISO/TC 256

Type: International Standard

ICS: 87.060.10

Gjuha: frëngjisht anglisht

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Statusi: Publikuar

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Scope

The method is of general use for comparing similar pigments, for example a test pigment against an agreed reference pigment. The pigment is dispersed in stages under specified conditions in an agreed binder system. After each stage, a portion of the mill base is taken and its fineness of grind is determined as described in ISO 1524. The fineness-of-grind values are plotted graphically as a function of the dispersion work done (expressed as time, number of revolutions, etc.). From the graph, the work necessary to obtain an agreed fineness of grind is determined.

Life cycle

NOW

PUBLISHED
ISO 8781-2:1990
90.93 Standard confirmed
6 mar 2023