BS ISO 6145-11-2005 气体分析.用动态容量法预备标定用混合气体.电化学产生

作者:标准资料网 时间:2024-05-17 12:27:02  浏览:8093   来源:标准资料网

【英文标准名称】:Gasanalysis-Preparationofcalibrationgasmixturesusingdynamicvolumetricmethods-Electrochemicalgeneration
【原文标准名称】:气体分析.用动态容量法预备标定用混合气体.电化学产生
【标准号】:BSISO6145-11-2005
【标准状态】:作废
【国别】:英国
【发布日期】:2006-01-30
【实施或试行日期】:2006-01-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:校正;标定用气体;化学成分;控制样品;电化学方法;电解的;气体分析;混合气体;气体;发电
【英文主题词】:Calibration;Calibrationgases;Chemicalcomposition;Controlsamples;Electrochemicalmethods;Electrolytic;Gasanalysis;Gasmixtures;Gases;Generation
【摘要】:ThispartofISO6145specifiesamethodforthepreparationofcalibrationgasmixturesbyusingelectrochemicalgenerationofacalibrationcomponentandintroductionintoacomplementarygasflow.Byalterationofthegasfloworthechargepassedthroughthecellelectrolyte,itispossibletochangethecompositionofthegasmixture.Therelativeexpandeduncertaintyofthecalibrationgascontent,U,obtainedbymultiplyingtherelativecombinedstandarduncertaintiesbyacoveragefactor,k=2,isnotgreaterthanb%ThemethoddescribedinthispartofISO6145isintendedtobeappliedtothepreparationofcalibrationgesmixturesinthevolumefractionranges(0,1to250)×10.NOTE1Gasesthatcanbeproducedbyelectrochemicalgenerationareoxygen(O2),hydrogen(H2),hydrogencyanide(HCN),hydrogensulfide(H2S),chlorine(Cl2),bromine(Br2),chlorinedioxide(CIO2),ammonia(NH3),nitricoxide(NO),nitrogen(N2),carbondioxide(CO2),phosphine(PH3),arsine(AsH3)ando/one(O3).NOTE2Themeritsofthemethodarethatastablecalibrationgasmixturecanbequicklypreparedwithinminutes.NOTE3Gasblendingsystemsbasedonelectrochemicalgenerationandthermalmassflowcontrollers,withthefacilityofcomputerizationandautomaticcontrol,arecommerciallyavailable.AnexampleisgiveninAnnexA.
【中国标准分类号】:G04
【国际标准分类号】:71_040_40
【页数】:24P.;A4
【正文语种】:英语