ISO 7660:1983

Current Revision
Essential oils -- Determination of ester value of oils containing difficult-to-saponify esters

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ISO 7660:1983

Essential oils -- Determination of ester value of oils containing difficult-to-saponify esters

PUBLISH DATE 1983
ISO 7660:1983

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.

Back-titration of the excess potassium hydroxide is then performed with a standard volumetric solution of sulfuric acid or hydrochloric acid.

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