标准号:ISO 6490-1-1985
中文标准名称:动物饲料 钙含量的测定 第1部分:滴定法
英文标准名称:Animal feeding stuffs; Determination of calcium content; Part 1 : Titrimetric method
标准类型:B46
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:B46
国际标准分类号:65.120
适用范围:The method is applicable to products having contents greater than 1 g/kg. It consists in ashing of a test portion, treatment of the ash with hydrochloric acid and precipitation of the calcium as calcium oxalate, dissolution of the precipitation in sulfuric acid and titration with standard volumetric potassium permanganate solution of the oxalic acid formed.