ČSN EN ISO 787-14

Podrobné informace

Označení: ČSN EN ISO 787-14

Datum vydání: 01.10.2019

Stran: 16

Země: Česká technická norma

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Anotace

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