ISO 7105-1985 工业用无水液氨 水含量的测定 卡尔·费休法

标准号：ISO 7105-1985
中文标准名称：工业用无水液氨 水含量的测定 卡尔·费休法
英文标准名称：Liquefied anhydrous ammonia for industrial use; Determination of water content; Karl Fischer method
标准类型：G10
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：G10
国际标准分类号：71.060.40
适用范围：A test portion is evaporated in the presence of ethanediol and the water content of the residue is determined by the Karl Fischer method with direct electrometric measurement. The method is applicable to products having water contents equal to or greater than 50 mg/kg. For water contents greater than 1000 mg/kg it is preferable to dilute the evaporation residue with anhydrous methanol in accordance with ISO 4276 and titrate an aliquot portion of the diluted solution.