ISO 6382-1981 测定硅含量的一般方法 还原硅钼酸盐分光光度法

标准号：ISO 6382-1981
中文标准名称：测定硅含量的一般方法 还原硅钼酸盐分光光度法
英文标准名称：General method for determination of silicon content; Reduced molybdosilicate spectrophotometric method
标准类型：H33;G04
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：H33;G04
国际标准分类号：71.060.10
适用范围：Specifies a method based on the depolymerization of any polymerized silica by treatment with sodium fluoride in the presence of hydrochloride acid resulting in the formation of the oxidized molycdosilicate, followed by the selective reduction of this complex in the presence of oxalic acid and in a sulphuric acid medium, and spectrophotometric measurement of the blue-coloured complex at the wavelength corresponding to maximum absorption (about 800 nm).