ISO 3699-1976 工业用无水氟化氢 水含量的测定 卡尔·费休法

标准号：ISO 3699-1976
中文标准名称：工业用无水氟化氢 水含量的测定 卡尔·费休法
英文标准名称：Anhydrous hydrogen fluoride for industrial use; Determination of water content; Karl Fischer method
标准类型：G11
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：G11
国际标准分类号：71.060.30
适用范围：Applicable to products having a water content between 0.01 % (m/m) and 0.5 % (m/m). Is supplemented by ISO 3700 and intended for reference purposes. Bases on addition of a cooled test portion to cooled dry pyridine containing 5 % of anhydous hydrogen fluoride. The apparatus for measuring the test portion and titration and the measuring vessel are shon in figures. Subsequent electrometric titration of the water with the Karl Fischer reagent.