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现行 ISO 7660:1983
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Essential oils — Determination of ester value of oils containing difficult-to-saponify esters 精油——含难皂化酯油酯值的测定
发布日期: 1983-10-01
该方法包括在二甲基亚砜中氢氧化钾的标准体积溶液中加热,水解试验部分中存在的酯,并用硫酸或盐酸的标准体积溶液反滴定过量的氢氧化钾。
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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归口单位: ISO/TC 54
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