标准编号：ISO 17211:2015
中文名称：固定源排放 烟气中硒化合物的取样和测定
英文名称：Stationary source emissions — Sampling and determination of selenium compounds in flue gas
发布日期：2015-08
标准范围
This International Standard describes the method for the sampling and determination of seleniumcompounds in both vapour phase and solid phase that are entrained in flue gases carried in stacks orducts. The selenium content in flue gas is expressed as a mass concentration of elemental selenium inthe stack gas.Particulate and gaseous selenium compounds are captured by a filter and an absorber solution,respectively. The total concentration of selenium compounds in flue gas is expressed as the sum of bothconcentrations.The concentrations of selenium in both samples are determined using inductively coupled plasmaoptical emission spectrometry (ICP-OES), inductively coupled plasma mass spectrometry (ICP-MS)or graphite furnace atomic absorption spectrometry (GFAAS). Hydride generation (HG) techniquescoupled to atomic spectrometry can also be used such as HG-AAS, HG-AFS (atomic fluorescencespectrometry), HG-ICP-OES and HG-ICP-MS.The detection limit for gaseous selenium compounds is 0,3 μg/m3 using HG-ICP-MS at a samplingvolume of 0,12 m3. The detection limit for particulate selenium compounds is 0,001 2 μg/m3 using thistechnique at a sampling volume of 2,0 m3.
标准预览图
立即下载标准文件