标准摘要
[中文适用范围]: 该方法适用于羰基化合物含量等于或大于0.01%(m/m)的产品。 该方法仅允许测定在特定条件下发生反应的那些羰基化合物。 其原理是基于氯化羟铵与测试部分中的羰基化合物反应,并在溴酚蓝作为指示剂存在下,用标准容量的氢氧化钠溶液滴定形成的盐酸。 - 国际标准 ISO 1388/1 至 ISO 1377/12 取消并取代了 ISO 建议 R 1388-1970,它们构成了技术修订版。 [外文原描述]: The method is applicable to products having carbonyl compounds contents equal to or greater than 0.01 % (m/m). The method only allows determination of those carbonyl compounds which react under the specified conditions. The principle is based on the reaction of hydroxylammonium chloride with the carbonyl compounds in a test portion and titration of the hydrochloric acid formed with standard volumetric sodium hydroxide solution, in the presence of bromophenol blue as indicator. - International Standards ISO 1388/1 to ISO 1377/12 cancel and replace ISO Recommendation R 1388-1970 of which they constitute a technical revision.
英文名称Ethanol for industrial use — Methods of test — Part 4: Estimation of content of carbonyl compounds present in moderate amounts — Titrimetric method