prSSH EN ISO 19403-4:2024

Bojëra dhe llaqe - Lagështia - Pjesa 4: Përcaktimi i fraksioneve polare dhe shpërndarëse të tensionit sipërfaqësor të lëngjeve nga një tension ndërfaqësor (ISO 19403-4:2024)

Paints and varnishes - Wettability - Part 4: Determination of the polar and dispersive fractions of the surface tension of liquids from an interfacial tension (ISO 19403-4:2024)

Scope

This document specifies a test method to determine the polar and dispersive fractions of the surface tension of liquids from an interfacial tension with optical methods. The method can be applied for the characterization of liquid coating materials, especially if drying effects occur during alternative measurement. If applied to liquids with non-Newtonian flow behaviour (see ISO 3219-1:2021, 3.22), restrictions can apply.