ISO 3363-1976 工业用氟氯化烃 酸度的测定 滴定法

标准号：ISO 3363-1976
中文标准名称：工业用氟氯化烃 酸度的测定 滴定法
英文标准名称：Fluorochlorinated hydrocarbons for industrial use; Determination of acidity; Titrimetric method
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：71.080.20
适用范围：Applicable to products the acidity of which is between 2 mol and 200 mol of univalent acid per kg. Two procedures are given: one is applicable to liquid products (R11, R113, etc.) and the other one to gaseous (R12, R22, etc.). The principle consists in extraction of the acids by water. Titration of the acids in the aqueous phase with standard volumetric sodium hydroxide solution in the presence of bromocresol green as indicator. A figure shows an apparatus for absorption of acids for products which are gaseous at ordinary temperatures.