ISO 2992-1974 工业用硫酸铵 铁含量的测定 2,2'-联吡啶光度法

标准号：ISO 2992-1974
中文标准名称：工业用硫酸铵 铁含量的测定 2,2'-联吡啶光度法
英文标准名称：Ammonium sulphate for industrial use; Determination of iron content; 2,2'- Bipyridyl photometric 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：71.060.50
适用范围：Applicable to Fe contents of equal to or more than 0.0001 % (m/m). The reaction bases on the reduction of iron(III) by hydroxylammonium chloride. Formation of the complex between iron(II) and 2,2'-dipyridyl in a buffered medium (pH value between 4.5 and 6). Photometric measurement of the coloured complex at a wavelength of about 522 nm. Has also been approved by the IUPAC.