ASTME96-E96M-16 英文版

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1、Designation:E96/E96M−16StandardTestMethodsfor1WaterVaporTransmissionofMaterialsThisstandardisissuedundertheÞxeddesignationE96/E96M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumbe

2、rinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.ScopeC1809PracticeforPreparationofSpecimensandReportingof

3、ResultsforPermeanceTestingofPressureSensitive1.1ThesetestmethodscoverthedeterminationofwaterAdhesiveSealedJointsinInsulationVaporRetardersvaportransmission(WVT)ofmaterialsthroughwhichtheD449/D449MSpeciÞcationforAsphaltUsedinDampproof-passageofwatervapormaybeo

4、fimportance,suchaspaper,ingandWaterprooÞngplasticÞlms,othersheetmaterials,Þberboards,gypsumandD2301SpeciÞcationforVinylChloridePlasticPressure-plasterproducts,woodproducts,andplastics.Thetestmethodsarelimitedtospecimensnotover11Ú4in.[32mm]inthicknessSensitive

5、ElectricalInsulatingTapeE177PracticeforUseoftheTermsPrecisionandBiasinexceptasprovidedinSection9.Twobasicmethods,theASTMTestMethodsDesiccantMethodandtheWaterMethod,areprovidedfortheE691PracticeforConductinganInterlaboratoryStudytomeasurementofpermeance,andtwo

6、variationsincludeserviceDeterminethePrecisionofaTestMethodconditionswithonesidewettedandserviceconditionswithlowhumidityononesideandhighhumidityontheother.3.TerminologyAgreementshouldnotbeexpectedbetweenresultsobtainedbydifferentmethods.Themethodshouldbeselec

7、tedthatmore3.1DeÞnitionsoftermsusedinthisstandardwillbefoundnearlyapproachestheconditionsofuse.inTerminologyC168,fromwhichthefollowingisquoted:ÒwatervaporpermeabilityÑthetimerateofwatervapor1.2ThevaluesstatedineitherSIunitsorinch-poundunitstransmissionthrough

8、unitareaofßatmaterialofunitthicknessaretoberegardedseparatelyasstandard.ThevaluesstatedininducedbyunitvaporpressuredifferencebetweentwospeciÞceachsystemmaynotbeexactequivalents;therefore,