International Standard
ISO 8781-2:1990
Pigments and extenders — Methods of assessment of dispersion characteristics — Part 2: Assessment from the change in fineness of grind
Reference number
ISO 8781-2:1990
ISO 8781-2:1990
Edition 1
1990-11
1990-11
© ISO 2024
International Standard
p
ISO 8781-2:1990
16202
Published
(Edition 1, 1990)
This standard was last reviewed and confirmed in 2023.
Therefore this version remains current.
Abstract
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.
General information
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Status: PublishedPublication date: 1990-11Stage: International Standard confirmed [90.93]
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Edition: 1Number of pages: 3
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Technical Committee :ISO/TC 256ICS :87.060.10
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