BS ISO 11564-1998 固定源辐射.氮氧化合物质量浓度的测定.萘二胺光度测定法

标准号：BS ISO 11564-1998
中文标准名称：固定源辐射.氮氧化合物质量浓度的测定.萘二胺光度测定法
英文标准名称：Stationary source emissions - Determination of the mass concentration of nitrogen oxides - Naphthylethylenediamine photometric method
标准类型：G04
发布日期：1998/6/15 12:00:00
实施日期：1998/6/15 12:00:00
中国标准分类号：G04
国际标准分类号：13.040.40
适用范围：This International Standard specifies a photometric method for the determination of the mass concentration of nitrogen oxides in exhaust gases from ducts or chimneys. NOTE —Nitrogen oxides (NOx) are practically defined as the sum of NO and NO2. The mass concentration of NOx is expressed as the equivalent NO2 concentration in milligrams per cubic metre. The method is applicable to the determination of the mass concentration of nitrogen oxides in exhaust gases from combustion processes, processes for surface treatment of metals and from organic chemical reactions, if necessary after removal by washing, in-furnace reduction and/or catalytic denitration, prior to their dispersion into the atmosphere. This International Standard is applicable to the concentration range 5 mg/m