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ISO 8781-3:1990

Pigments and extenders — Methods of assessment of dispersion characteristics — Part 3: Assessment from the change in gloss

Standard Details

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 made into a composition that is applied to a substrate and dried or stoved. The specular gloss of each dried film is determined as described in ISO 2813. The gloss values are plotted graphically as a function of the dispersion stage (expressed for example as time, number of revolutions of a muller). From the graph, the dispersion work necessary to obtain an agreed specular reflection value is determined.

General Information

Status : Published
Standard Type: Main
Document No: ISO 8781-3:1990
Document Year: 1990
Pages: 4
Edition: 1
  • Section Volume:
  • ISO/TC 256. Pigments, dyestuffs and extenders

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ISO 8781-3:1990
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