Reference number
ISO 8781-1:1990
International Standard
ISO 8781-1:1990
Pigments and extenders — Methods of assessment of dispersion characteristics — Part 1: Assessment from the change in tinting strength of coloured pigments
Edition 1
1990-11
Read sample
ISO 8781-1:1990
16201
Published (Edition 1, 1990)
This publication was last reviewed and confirmed in 2023. Therefore this version remains current.

ISO 8781-1:1990

ISO 8781-1:1990
16201
Language
Format
CHF 42
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Abstract

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.

General information

  •  : Published
     : 1990-11
    : International Standard confirmed [90.93]
  •  : 1
     : 5
  • ISO/TC 256
    87.060.10 
  • RSS updates

Life cycle

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