EN ISO 8781-3:1995

Pigments and extenders - Methods of assessment of dispersion characteristics - Part 3: Assessment from the change in gloss (ISO 8781-3:1990) EN ISO 8781-3:1995

Publication date:   Dec 22, 2003

General information

90.93 Standard confirmed   Dec 7, 2007

CEN

CEN/TC 298 Pigments and extenders

European Norm

87.060.10   Pigments and extenders

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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 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.

Life cycle

NOW

PUBLISHED
EN ISO 8781-3:1995
90.93 Standard confirmed
Dec 7, 2007

Relations

Adopted from ISO 8781-3:1990 IDENTICAL