DIN CWA 14088-4-2001 医院采购用欧洲电子商务(ECHOP).第4部分:因产品名称标准化导致需要标准化的业务

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【英文标准名称】:TraceC4-C9SaturatesinHighPurityAromaticsbyGC
【原文标准名称】:用气相色谱分析法测定高纯度芳族化合物中痕量C4-C9饱和物
【标准号】:ASTMUOP976-2002
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:
【标准类型】:(UOP)
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Thisgaschromatographicmethodisfordeterminingindividualandcompositetracenon-aromatichydro-carbonimpuritiesinolefin-freearomaticmixtures.C8andlowerboilingparaffinsandnaphthenesarede-terminedindividuallyandthensummedbycarbonnumberandcarbontype.C9non-aromaticsarereportedasacomposite.ThemethodisnotquantitativeforC3andlowermolecularweighthydrocarbonsduetotheirvolatility.Therangeofquantitationforeachcomponentis1to2000mass-ppm.Therangeofquanti-tationforeachcompositedependsuponthenumberofcomponentsinthecomposite.AnalternativemethodprovidingsimilarinformationisUOPMethod868,TraceSaturatesinHighPurityAromaticsbyGC.Itusesatwo-columnsystemtoreportparaffinsandnaphthenesbycarbonnumberthroughC10.
【中国标准分类号】:
【国际标准分类号】:
【页数】:11P.;A4
【正文语种】:英语


【英文标准名称】:Stationarysourceemissions-Determinationofthewatervapourinducts
【原文标准名称】:固定源排放.管道中水蒸汽的测定
【标准号】:BSEN14790-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2006-01-16
【实施或试行日期】:2006-01-16
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:空气污染;空气净化;空气质量;烟囱;浓度;定义;管道;排放;排气管路;现场试验;废气管;废气出口;废气;焚烧(废弃物);测量;测量技术;潮气;监测;额定值;参考方法;垃圾焚化;固定的;蒸汽;监督(认可);温度;含水量
【英文主题词】:
【摘要】:ThisEuropeanStandarddescribesthecondensation/adsorptiontechnique,includingthesamplingsystem,todeterminethewatervapourconcentrationinthefluegasesemittingtoatmospherefromductsandstacks.ThistechniqueisusuallyusedalloverEuropeforwatervapourmonitoring.HowevertobeimplementedastheStandardReferenceMethod(SRM),theuserhastodemonstratethattheperformancecharacteristicsofthemethodarebetterthantheperformancecriteriadefinedinthisEuropeanStandardandthattheoveralluncertaintyofthemethodislessthan±20%ofthemeasuredvalue.ThisEuropeanStandardastheStandardReferenceMethod(SRM)isusedforperiodicmonitoringandforcalibrationorcontrolofAutomaticMeasuringSystems(AMS)permanentlyinstalledonastack,forregulatorypurposesorotherpurposes.AnAlternativeMethodtothisSRMmaybeusedprovidedthattheusercandemonstrateequivalenceaccordingtotheTechnicalSpecificationCEN/TS14793,tothesatisfactionofhisnationalaccreditationbodyorlaw.Thedeterminationofwatervapourismainlynecessaryfor:?regulatorypurposes,toexpresstheconcentrationatstandardconditions(ondrygas);?adjusttheflowrateforisokineticsampling,whenadrygasflowratemeteringdeviceisused.Forbothapplications,thequantitytobemeasuredistheamountofwaterpresentinthegasphase(vapour),whichdoesnotincludewaterdroplets.ThisEuropeanStandardisapplicableintherangefrom4%to40%relativehumidityandforwatervapourconcentrationfrom29g/m3to250g/m3asawetgas,althoughforagiventemperaturetheupperlimitofthemethodisrelatedtothemaximumpressureofwaterinairorinthegas.ThisEuropeanStandardhasbeenevaluatedduringfieldtestsonwasteincineration,co-incinerationandlargecombustioninstallations.Ithasbeenvalidatedforsamplingperiodsof30minintheconcentrationrangeof7%to26%volume.InthisEuropeanStandardalltheconcentrationsareexpressedinnormalconditions(273Kand101,3kPa).NOTEForsaturatedconditionsthecondensation/adsorptionmethodisnotapplicable.SomeguidanceisgiveninthisEuropeanStandardtodealwithfluegaswhendropletsarepresent.
【中国标准分类号】:Z60
【国际标准分类号】:13_040_40
【页数】:46P.;A4
【正文语种】:英语