ISO 10313-1993 环境空气 臭氧质量浓度的测定 化学发光法
The method specified is based on drawing continuously, at a constant flow rate, an air sample through a particle filter before it enters the chemiluminescence analyser. It then flows into a reaction chamber where it is mixed with an excess flow of ethylene. Ozone and ethylene react instantaneously to produce light in the visible region (maximum at about 400 nm). The emitted light intensity is proportional to the concentration of ozone in the air sample and is measured by a photomultiplier tube. Applies to determination of the mass concentration of ozone between 2 鎔/m<(hoch)3> and 10 mg/m<(hoch)3> at the reference conditions.
ISO 10313-1993 环境空气 臭氧质量浓度的测定 化学发光法
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标准类别 | 国际标准 |
---|---|
标准状态 | 现行有效 (标准状态仅供参考) |
颁发部门 | IX-ISO |
发布日期 | 1993-04 |
实施日期 | |
废止日期 |