CSA Group Pigments and extenders - Methods of assessment of dispersion characteristics - Part 2: Assessment from the change in fineness of grind ISO 8781-2:1990

Description
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.
  • Pigments and extenders - Methods of assessment of dispersion characteristics - Part 2: Assessment from the change in fineness of grind - ISO 8781-2:1990 - CSA Group
    CSA Group
Description
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.

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Pigments and extenders - Methods of assessment of dispersion characteristics - Part 2: Assessment from the change in fineness of grind - ISO 8781-2:1990 - CSA Group
CSA Group
Toronto, Ontario, Canada
Pigments and extenders - Methods of assessment of dispersion characteristics - Part 2: Assessment from the change in fineness of grind
ISO 8781-2:1990
Pigments and extenders - Methods of assessment of dispersion characteristics - Part 2: Assessment from the change in fineness of grind ISO 8781-2:1990
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.

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.

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Technical Specifications

  CSA Group
Product Category Standards and Technical Documents
Product Number ISO 8781-2:1990
Product Name Pigments and extenders - Methods of assessment of dispersion characteristics - Part 2: Assessment from the change in fineness of grind
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