BS 4140-12-1986 氧化铝试验方法.第12部分:钒含量测定

标准号：BS 4140-12-1986
中文标准名称：氧化铝试验方法.第12部分:钒含量测定
英文标准名称：Methods of test for aluminium oxide - Determination of vanadium content
标准类型：G13
发布日期：1986/1/31 12:00:00
实施日期：1986/1/31 12:00:00
中国标准分类号：G13
国际标准分类号：71.100.10
适用范围：This International Standard specifies an N-benzoyl-N-phenyl-hydroxylamine photometric method for the determination of the vanadium content of aluminium oxide primarily used for the production of aluminium. The method is applicable to products having a vanadium content, expressed as V2O5, between 0,000 3 and 0,016% (mlm), provided that the Cr2O3 and the TiO2 contents do not exceed 0,002 and 0,006 % (m/m) respectively. 1 Special cases (under study) Cr2O3 contents greater than 0,002 % (m/m) and TiO2 contents greater than 0,006 % (m/m).