BS EN ISO 8780-6:1995 Pigments and extenders - Methods of dispersion for assessment of dispersion characteristics. Part 6: Dispersion using a triple-roll mill

This part of ISO 8780 specifies a method for the dispersion of pigments and extenders using a triple-roll mill. The results permit conclusions to be
drawn as to the behaviour of the products tested when dispersed using corresponding production machinery. This part of ISO 8780 is for use in conjunction with the methods of assessment described in ISO 8781, using an agreed binder system of high viscosity free from volatile materials. It should be read in conjuction with ISO 8780-1.
This method is restricted to high-viscosity mill bases. To improve the precision of the method, it is recommended that the dispersion procedures for the test pigment and agreed reference pigment are carried out at the same temperature.
The results obtained are not suitable for making comparisons with dispersibility results obtained using other methods of dispersion.