ISO 935-1988 动植物油脂 脂肪酸凝固点的测定

标准号：ISO 935-1988
中文标准名称：动植物油脂 脂肪酸凝固点的测定
英文标准名称：Animal and vegetable fats and oils; determination of titre
标准类型：X14
发布日期：1999/12/31 12:00:00
实施日期：1988/1/15 12:00:00
中国标准分类号：X14
国际标准分类号：67.200.10
适用范围：Specifies a method for the preparation of the water-insoluble fatty acide and determination of their solidification temperature. The method is not applicable to titres below 30 degrees centigrade. The principle is saponification of a test portion with potassium hydroxide solution in glycerol, dissolution of the soap in water and neutralization. Washing of the separated insoluble fatty acids with hot sodium chloride solution, drying and filtering. Melting of the prepared fatty acids, cooling them, with continuous stirring, and observation of the solidification temperature.