Surface active agents — Determination of free alkalinity or free acidity — Titrimetric method
NORM herausgegeben am 1.2.1977
Bezeichnung normen: ISO 4314:1977
Ausgabedatum normen: 1.2.1977
Zahl der Seiten: 2
Gewicht ca.: 6 g (0.01 Pfund)
Land: Internationale technische Norm
Kategorie: Technische Normen ISO
Description / Abstract: The determination is carried out in the following way: Titration of an ethanolic or propanolic solution of the product with a standard volumetric potassium hydroxide or hydrochloric acid or sulphuric acid solution whichever is appropriate, in the presence of phenolphthalein as indicator.