ISO 1388-2-1981 工业用乙醇 试验方法 第2部分:以酚酞为指示剂检验碱度或测定酸度

标准号：ISO 1388-2-1981
中文标准名称：工业用乙醇 试验方法 第2部分:以酚酞为指示剂检验碱度或测定酸度
英文标准名称：Ethanol for industrial use; Methods of test; Part 2 : Detection of alkalinity or determination of acidity to phenolphthalein
标准类型：G15
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：G15
国际标准分类号：71.080.60
适用范围：The method is applicable to products having acidities equal to or greater than 0.0008 % (m/m). The principle consists in the dilution of a test portion with carbon dioxide-free water, checking whether the test solution is alkaline or acid to phenolphthalein, and, if appropriate, determination of the acidity by titration with standard volumetric sodium hydroxide solution. The acidity is expressed as a percentage by mass of acetic acid. - International Standards ISO 1388/1 to 1388/12 cancel and replace ISO Recommendation R 1388-1970 of which they constitute a technical revision.