ISO 3390-1976 主要用于铝生产的氧化铝 锰含量的测定 火焰原子吸收法

标准号：ISO 3390-1976
中文标准名称：主要用于铝生产的氧化铝 锰含量的测定 火焰原子吸收法
英文标准名称：Aluminium oxide primarily used for the production of aluminium; Determination of manganese content; Flame atomic absorption 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：71.100.10
适用范围：Applicable to products having a Mn content between 0.0002 % (m/m) and 0.005 % (m/m). Preliminary extraction by the method specified in the annex if the apparatus available does not have a sufficient sensitivity. Describes the dissolution of a test sample by heating in a sealed borosilicate glass tube with hydrochloric acid at a controlled temperature of 250 鳦. Aspiration of the solution in an air-acetylene flame and spectrophotometric measurement of the absorption of the 279.5-nm line emitted by a manganese hollow cathode lamp.