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BS EN 1948-1-2006 固定源排放.PCDDs/PCDFs和类戴奥辛PCBs的质量浓度测定.PCDDs/PCDFs抽样

作者:标准资料网 时间:2024-05-12 13:20:26  浏览:9569   来源:标准资料网
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【英文标准名称】:Stationarysourceemissions-DeterminationofthemassconcentrationofPCDDs/PCDFsanddioxin-likePCBs-SamplingofPCDDs/PCDFs
【原文标准名称】:固定源排放.PCDDs/PCDFs和类戴奥辛PCBs的质量浓度测定.PCDDs/PCDFs抽样
【标准号】:BSEN1948-1-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-03-31
【实施或试行日期】:2006-03-31
【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】:空气净化;空气质量;化学分析和试验;清洁处理;浓缩;冷却;定义;测定;含量测定;稀释法;戴奥辛;排放测量;辐射;发射器;萃取;滤出液;质量浓度;测量;测量技术;方法;最低要求;PCB;多氯联苯;PCDD;PCDF;空气污染;聚氯化双苯唑呋喃;多氯二联苯戴奥辛;抽样方法;规范(验收);固定的;吸出
【英文主题词】:Airpurification;Airquality;Chemicalanalysisandtesting;Cleaning;Concentration;Cooling;Definition;Definitions;Determination;Determinationofcontent;Dilutionmethods;Dioxine;Emission;Emissionmeasurement;Emitter;Extraction;Filtrate;Massconcentration;Measurement;Measuringtechniques;Methods;Minimumrequirements;PCB;PCDD;PCDF;Pollutionoftheair;Polychlorinateddibenzodioxines;Polychlorinateddibenzofuran;Samplingmethods;Specification(approval);Stationary;Suckingoff
【摘要】:ThisEuropeanStandardspecifiesthesamplingofPCDDs/PCDFs.Itisanintegralpartofthecompletemeasurementprocedure.TheuseoftheothertwopartsEN1948-2andEN1948-3describingextractionandclean-upandidentificationandquantification,respectively,isnecessaryforthedeterminationofthePCDDs/PCDFs.ThisEuropeanStandardhasbeendevelopedtomeasurePCDD/PCDFconcentrationsatabout0,1ngI-TEQ/m3instationarysourceemissions.ThisEuropeanStandardspecifiesbothmethodvalidationandaframeworkofqualitycontrolrequirementswhichshallbefulfilledbyanyPCDD/PCDFsampling.Theuserhasthepossibilitytochoosebetweenthreedifferentmethods:-"filter/condensermethod"-"dilutionmethod"-"cooledprobemethod"EachsamplingmethodisillustratedbysomesamplingsystemsdescribedindetailinAnnexBasexamplesofprovenprocedures.Duringcomparisonmeasurementsofthethreesamplingmethodsonmunicipalwasteincineratorsatthelevelofabout0,1ngI-TEQ/m3thesemethodshavebeendeemedcomparablewithintheexpectedrangeofuncertainty.Validationtrialswereperformedonthefluegasofmunicipalwasteincineratorsatthelevelofabout0,1ngI-TEQ/m3andadustloadingoffrom1mg/m3to15mg/m3.AlthoughthisEuropeanStandardisprimarilydevelopedandvalidatedforgaseousstreamsemittedbywasteincinerators,thepracticalexperienceshowsthatitcanbeappliedforwideconcentrationrangesandvariousemissionsources.TheproceduredescribedinthethreepartsofEN1948specifiesrequirementswhichshallbemetinordertomeasurethe17congenersnecessarytocalculatethetotalI-TEQ(seeTableA.1).BesidesthedeterminationofPCDDs/PCDFsthedescribedmeasurementmethodsaresuitablefordeterminationofotherlow-volatilesubstances,e.g.ofdioxin-likePCBs(detailsforsamplingandanalysesseeCEN/TS1948-4),althoughnovalidatedperformancecharacteristicsareavailableyet.
【中国标准分类号】:Z60
【国际标准分类号】:13_040_40
【页数】:68P.;A4
【正文语种】:英语


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【英文标准名称】:StandardPracticeforRubberfromNaturalSources-SamplingandSortingBalesBasedonPredictedProcessingProperties
【原文标准名称】:天然橡胶的标准实施规程-基于预测加工性能的取样和分类
【标准号】:ASTMD7050-2004(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【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】:D11.22
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:hardrubber;naturalrubber;processability;processingproperties;sampling;softrubber;sortingbalesRubber(natural)
【摘要】:InaccordancewithSpecificationD2227,shipmentsofTSR10andTSR20mustmeetaminimuminitialWallaceplasticity(Po)of30tobeaccepted.However,evenwiththisminimumrestriction,theuncuredviscoelasticorx201C;processabilityx201D;propertiesareallowedtovarygreatly.Thisvariationinpropertiescansignificantlyaffectthequalityandefficiencyofafactoryoperation.BalesofTSR10orTSR20whicharelowerintheiruncuredelasticquality(x201C;softx201D;rubber)insomecasesmayimpartbetterprocessingpropertiestotireinnerliners,cushiongums,andsidewalls.x201C;Softx201D;balessometimesimpartbetterbuildingtack,bettermoldflow,andlowerextrusiondieswellwithbetterdimensionalstability.Also,thesex201C;softx201D;rubberbalesmaydissolvefasterinsolventsforadhesiondipping.BalesofTSR10orTSR20thatarehigherintheiruncuredelasticquality(x201C;hardx201D;rubber)insomecasesgenerategreatershearingduringtheinitialstagesofafactorymix,whichresultinafasterbreakdownandashortermixcycle.Therefore,inafactoryoperation,sometimessegregatingTSR10orTSR20shipmentsintox201C;softx201D;andx201C;hardx201D;categoriescanimprovetheefficiencyandqualityofafactoryoperation.1.1ThispracticecoversthesortingofnaturalrubberbalesofTSR10orTSR20inthefactoryaccordingtotheirpredictedprocessingperformancebasedondifferencesinviscoelasticproperties.1.2Thispracticedetermineswhichbalesshouldbeusedinfactorycompoundswhichbenefitfromusingx201C;softx201D;naturalrubberversuswhichworkbetterwithx201C;hardx201D;naturalrubber.
【中国标准分类号】:B72
【国际标准分类号】:83_060
【页数】:2P.;A4
【正文语种】:英语


【英文标准名称】:Modularunitsformachinetools.Multispindleheads.Simplecountershafts.
【原文标准名称】:组合机床动力头.多轴头.简单的中间轴
【标准号】:NFE62-245-1976
【标准状态】:作废
【国别】:法国
【发布日期】:1976-12-01
【实施或试行日期】:1976-12-16
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:标准化组件;名称与符号;尺寸;主轴;材料规范;金属加工机械;次螺纹主轴;攻螺纹;规范;尺寸公差;机床;多轴头;机床部件;副轴;成形机
【英文主题词】:
【摘要】:
【中国标准分类号】:J52
【国际标准分类号】:25_060_10
【页数】:2P;A4
【正文语种】:其他



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