标准号:ISO 4221-1980
中文标准名称:空气质量 环境空气中二氧化硫质量浓度的测定 钍试剂分光光度法
英文标准名称:Air quality; Determination of mass concentration of sulphur dioxide in ambient air; Thorin spectrophotometric method
标准类型:C51
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:C51
国际标准分类号:13.040.20
适用范围:Applies to the range of 3,5 to 150 g/m3, assuming an air sample volume of 2 m3 and a sample solution volume of 50 ml. For higher concentrations, dilution of the sample may be necessary.