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Paint and Coatings Industry Standards
ISO 8781-2:1990 ISO 8781-2:1990 Pigments and extenders -- Methods of assessment of dispersion characteristics -- Part 2: Assessment from the change in fineness of grind
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.
