Pigments and extenders -- Methods of assessment of dispersion characteristics -- Part 1: Assessment from the change in tinting strength of coloured pigments
This standard was last reviewed* in 2012.
Relates to coloured pigments which have been dispersed by one of the methods described in ISO 8780. The method is of general use for comparing similar pigments, for example a test pigment against an agreed reference pigment. The principle consists in dispersing the pigment in stages under specified conditions in an agreed binder system. After each dispersion stage, a portion of the mill base is taken and mixed separately with a white pigment to form a reduced paste. The tinting strength of each reduced paste is determined as described in ISO 787-24. The percentage increase in tinting strength between two dispersion stages is calculated in order to assess the ease of dispersibility of the pigment.
Document published on: 1990-11-15 Edition: 1 (Monolingual) ICS: 87.060.10 Status: Published Stage: 90.93 (2012-04-03) TC/SC: ISO/TC 256 Number of Pages: 5
No revision information available
No corrigenda or amendments available