Essential oils — Determination of ester value of oils containing difficult-to-saponify esters
NORM herausgegeben am 1.10.1983
Bezeichnung normen: ISO 7660:1983
Ausgabedatum normen: 1.10.1983
Zahl der Seiten: 2
Gewicht ca.: 6 g (0.01 Pfund)
Land: Internationale technische Norm
Kategorie: Technische Normen ISO
Description / Abstract: The method consists in hydrolysis of the esters present in a test portion by heating in the presence of a standard volumetric solution of potassium hydroxide in dimethylsulfoxide, and back-titration of the excess potassium hydroxide with a standard volumetric solution of sulfuric acid or hydrochloric acid.