標準號：ISO 1388-4-1981
中文標準名稱：工業用乙醇 試驗方法 第4部分:中等量的羰基化合物含量的測定 滴定法
英文標準名稱：Ethanol for industrial use; Methods of test; Part 4 : Estimation of content of carbonyl compounds present in moderate amounts; Titrimetric method
標準類型：G15
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：G15
國際標準分類號：71.080.60
適用范圍：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.