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ASTM F2391-2005 使用氦作为示踪气体测量包装和密封完整性的标准试验方法

作者:标准资料网 时间:2024-05-10 17:21:07  浏览:9722   来源:标准资料网
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【英文标准名称】:StandardTestMethodforMeasuringPackageandSealIntegrityUsingHeliumastheTracerGas
【原文标准名称】:使用氦作为示踪气体测量包装和密封完整性的标准试验方法
【标准号】:ASTMF2391-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:F02.40
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:blisterpackaging;bottles;cartridges;flexiblepackaging;gasbarrierperformance;heliumleaktest;impermeablepackaging(andmaterials);integritymonitoring;massspectrometer;massspectrometerleaktest;massspectrometersensor;pass/failcriteri
【摘要】:Thevacuum,bubbletestmethod,asdescribedinTestMethodD3078,andvariousotherleakdetectionmethodsdescribedelsewhere(TestMethodD4991,GuideE432,GuideE479,TestMethodE493,TestMethodE498,TestMethodE499,andTestMethodE1603)havebeensuccessfullyusedwidelyinvariousindustriesandapplicationstodeterminethatagivenpackageisorisnotax201C;leaker.x201D;Thesensitivityofanyselectedleaktestmethodhastobeconsideredtodetermineitsapplicabilitytoaspecificsituation.Theprocedurespresentedinthistestmethodallowtheusertocarryoutpackageandsealintegritytestingwithsufficientsensitivitytoquantifysealsinthepreviouslydefinedmoderatetoveryfinesealranges.Byemployingseal-isolatingleaktestingfixtures,packagesconstructedofvariousmaterialscanbetestedinthefullrangeofsealperformancerequirements.Designofthesefixturesisbeyondthescopeofthismethod.Theseseal/packageintegritytestprocedurescanbeutilizedas:5.4.1Adesigntool,5.4.2Fortoolingqualification,5.4.3Processsetup,5.4.4Processvalidationtool,5.4.5Qualityassurancemonitoring,or5.4.6Researchanddevelopment.1.1Thistestmethodincludesseveralproceduresthatcanbeusedforthemeasurementofoverallpackageandsealbarrierperformanceofavarietyofpackagetypesandpackageforms,aswellasseal/closuretypes.Thebasicelementsofthismethodinclude:1.1.1Helium(employedastracergas),1.1.2Heliumleakdetector(massspectrometer),and1.1.3Package/product-specifictestfixtures.1.1.4Mostapplicationsofheliumleakdetectionaredestructive,inthatheliumneedstobeinjectedintothepackageafterthepackagehasbeensealed.Theinjectionsitethenneedstobesealed/patchedexternally,whichoftendestroysitssaleability.Alternatively,ifheliumcanbeincorporatedintotheheadspacebeforesealing,themethodcanbenon-destructivebecauseallthatneedstobeaccomplishedistosimplydetectforheliumescapingthesealedpackage.1.2Twoproceduresaredescribed;howeverthesupportingdatainSection14onlyreflectsProcedureB(VacuumMode).Thealternative,SnifferMode,hasproventobeavaluableprocedureformanyapplications,butmayhavemorevariabilityduetoexactlythemannerthattheoperatorconductsthetestsuchaswhetherthepackageissqueezed,effectofmultiplesmallleakscomparedtofewerlargeleaks,backgroundheliumconcentration,packagepermeabilityandspeedatwhichthescanisconducted.Furthertestingtoquantifythisproceduresvariabilityisanticipated,butnotincludedinthisversion.1.2.1ProcedureA:SnifferMode8212;thepackageisscannedexternallyforheliumescapingintotheatmosphereorfixture.1.2.2ProcedureB:VacuumMode8212;theheliumcontainingpackageisplacedinaclosedfixture.Afterdrawingavacuum,heliumescapingintotheclosedfixture(capturevolume)isdetected.Typically,thefixturesarecustommadeforthespecificpackageundertest.1.3Thesensitivityofthemethodcanrangefromthedetectionof:1.3.1Largeleaks-10-2Pam3/sto10-5Pam3/s(10-1cc/sec/atmto10-4cc/sec/atm).1.3.2Moderateleaks-10-5Pam3/sto10-7Pam3/s(10-4cc/sec/atmto10-6cc/sec/atm).1.3.3Fineleaks-10-7Pam3
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【英文标准名称】:Precastconcreteproducts-Normalweightandlightweightconcreteshutteringblocks-Productpropertiesandperformance;EnglishversionofDINEN15435:2008-10
【原文标准名称】:预制混凝土制品.标准重量和轻质混凝土模块.制品性能和特性
【标准号】:DINEN15435-2008
【标准状态】:现行
【国别】:德国
【发布日期】:2008-10
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:砌块;CE标记;混凝土;一致性;一致性评估;建筑;定义;特点;模板;空心砌块;轻质混凝土;作标记;普通混凝土;预浇铸混凝土部件;预制混凝土部件;预制配件;性能;模块;规范(验收);石;测试;隔热
【英文主题词】:Blocks(building);CEmarking;Concretes;Conformity;Conformityassessment;Construction;Definition;Definitions;Features;Formwork;Hollowblocks;Lightweightconcrete;Marking;Normalconcrete;Precastconcreteparts;Prefabricatedparts;Properties;Shutteringblocks;Specification(approval);Stone;Testing;Thermalinsulation
【摘要】:ThisEuropeanStandardspecifiestheproperties,performanceandtestmethodsoffactorymade,non-loadbearinghollowconcreteshutteringblocksmadefromnormalweightorlightweightaggregatesoracombinationofboth.Shutteringblocksmayincludeverticalorhorizontalinterlockingfeaturesandfactoryinstalledsupplementaryinsulation.Shutteringblocksareintendedtobeusedtoformwallsandpartitionswhenfilledwithconcreteormortar.Concreteshutteringblocksrelyonaconcreteormortarinfillfortheirstructuralperformanceandarenotintendedtobeusedunfilled.ThisstandarddoesnotcovermasonryunitscoveredinEN771-3.
【中国标准分类号】:Q14
【国际标准分类号】:91_100_30
【页数】:46P.;A4
【正文语种】:英语


【英文标准名称】:EnergyStandardforBuildingsExceptLow-RiseResidentialBuildings
【原文标准名称】:除低层住宅建筑外建筑物的能量标准
【标准号】:ANSI/ASHRAE/IESNA90.1an-2007
【标准状态】:现行
【国别】:美国
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ASHRAE
【标准类型】:()
【标准水平】:()
【中文主题词】:能源节约;低能量住宅;热环境系统;多用途设备
【英文主题词】:Energyconservations;Low-energyhouses;Thermalenvironmentsystems;Utilityequipment
【摘要】:ThisproposedaddendumupdatestheefficiencyrequirementsforcommercialboilersbydeletingTable6.8.1Fandreplacingitwithanewtableofefficiencies.Thetablehasthreecolumns:oneforefficienciesnow,oneforefficienciestogointoeffectin2009,andoneforefficienciestogointoeffectin2019.
【中国标准分类号】:P31
【国际标准分类号】:91_010_30;91_010_01;91_140_99
【页数】:
【正文语种】:英语



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