ISO 7660:1983
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Essential oils — Determination of ester value of oils containing difficult-to-saponify esters
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English, French
10-01-1983
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, and back-titration of the excess potassium hydroxide with a standard volumetric solution of sulfuric acid or hydrochloric acid.
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