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download between 0-24 hoursReleased: 1983
ISO 7660:1983
ISO 7660:1983-Essential oils — Determination of ester value of oils containing difficult-to-saponify esters
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| Standard´s number: | ISO 7660:1983 |
| Pages: | 2 |
| Edition: | 1 |
| Released: | 1983 |
DESCRIPTION
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, and back-titration of the excess potassium hydroxide with a standard volumetric solution of sulfuric acid or hydrochloric acid.