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Homepage>ISO 7660:1983-Essential oils — Determination of ester value of oils containing difficult-to-saponify esters
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sklademVydáno: 1983
ISO 7660:1983-Essential oils — Determination of ester value of oils containing difficult-to-saponify esters

ISO 7660:1983

ISO 7660:1983-Essential oils — Determination of ester value of oils containing difficult-to-saponify esters

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Označení normy:ISO 7660:1983
Počet stran:2
Vydání:1
Vydáno: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.
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