General methods of test for pigments and extenders - Part 14: Determination of resistivity of aqueous extract
NORM herausgegeben am 1.10.2019
Bezeichnung normen: ČSN EN ISO 787-14
Zeichen: 670520
Katalog-Nummer: 507897
Ausgabedatum normen: 1.10.2019
Zahl der Seiten: 16
Gewicht ca.: 48 g (0.11 Pfund)
Land: Tschechische technische Norm
Kategorie: Technische Normen ČSN
This document specifies a general method of test for determining the electric resistivity (specific electric resistance) or the specific electric conductivity, respectively, of the aqueous extract of a pigment. The method is applicable to all pigments and extenders, except pigments that are soluble in water. The resistivity of the aqueous extract of a pigment is considered as a property independent of the amount of water-soluble matter. If agreed, a cold extraction method can be used