This part of IS0 787 specifies a general method of test for
determining the pH value of an aqueous suspension of a sample
of pigment or extender.
NOTE - When this general method is applicable to a given pigment or
extender, only a cross-reference to it should be included in the International
Standard relating to that pigment or extender, with a note of any
detailed modification which may be needed in view of the special properties
of the material in question. Only when this general method is
not applicable to a particular material should a special method for
determination of pH value be specified.
Dieser Teil der ÖNORM ISO 787 legt ein allgemeines Prüfverfahren zur Bestimmung des pH-Wertes einer wäßrigen Suspension einer Pigment- oder Füllstoffprobe fest.