ISO 4321-1977 洗衣粉 活性氧含量的测定 滴定法

标准号：ISO 4321-1977
中文标准名称：洗衣粉 活性氧含量的测定 滴定法
英文标准名称：Washing powders; Determination of active oxygen content; Titrimetric method
标准类型：Y40;Y43
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：Y40;Y43
国际标准分类号：71.100.40
适用范围：The determination consists in co-reduction, with liberation of oxygen, of the peroxyhydrate and potassium permanganate in an acid solution. Because of the specifity of washing powders and the relative stability of peroxyhydrates, the dissolution of washing powders is likely to be incomplete and may result in a loss of oxygen; these disadvantages have been avoited by adoption of a particular method of dissolution appropriate to the determination of active oxygen content. This method may be used for determing peroxyhydrates, for example sodium perborate.