Surface active agents — Measurement of foaming power — Modified Ross-Miles method
NORM herausgegeben am 1.7.1975
Bezeichnung normen: ISO 696:1975
Ausgabedatum normen: 1.7.1975
Zahl der Seiten: 5
Gewicht ca.: 15 g (0.03 Pfund)
Land: Internationale technische Norm
Kategorie: Technische Normen ISO
Description / Abstract: After 500 ml of a solution of the substance to be tested have flowed down from a height of 450 mm onto the surface of the same solution, the volume of foam formed is measured, This method is applicable to all surface active agents, but solutions of easy-hydrolizable substances do not give reliable results because the hydrolysis products accumulate in the liquid films and affect the steadiness of the foam.