ASTM E96／E96M-16 Standard Test Methods for Water Vapor Transmission of Materials 英文版

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

2、nthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.ScopeC1809PracticeforPreparationofSpecimensandReportingofResultsforPerm

3、eanceTestingofPressureSensitive1.1ThesetestmethodscoverthedeterminationofwaterAdhesiveSealedJointsinInsulationVaporRetardersvaportransmission(WVT)ofmaterialsthroughwhichtheD449/D449MSpeciÞcationforAsphaltUsedinDampproof-passageofwatervapormaybeofimportance,suchaspap

4、er,ingandWaterprooÞngplasticÞlms,othersheetmaterials,Þberboards,gypsumandD2301SpeciÞcationforVinylChloridePlasticPressure-plasterproducts,woodproducts,andplastics.Thetestmethodsarelimitedtospecimensnotover11Ú4in.[32mm]inthicknessSensitiveElectricalInsulatingTapeE177

5、PracticeforUseoftheTermsPrecisionandBiasinexceptasprovidedinSection9.Twobasicmethods,theASTMTestMethodsDesiccantMethodandtheWaterMethod,areprovidedfortheE691PracticeforConductinganInterlaboratoryStudytomeasurementofpermeance,andtwovariationsincludeserviceDetermineth

6、ePrecisionofaTestMethodconditionswithonesidewettedandserviceconditionswithlowhumidityononesideandhighhumidityontheother.3.TerminologyAgreementshouldnotbeexpectedbetweenresultsobtainedbydifferentmethods.Themethodshouldbeselectedthatmore3.1DeÞnitionsoftermsusedinthiss

7、tandardwillbefoundnearlyapproachestheconditionsofuse.inTerminologyC168,fromwhichthefollowingisquoted:ÒwatervaporpermeabilityÑthetimerateofwatervapor1.2ThevaluesstatedineitherSIunitsorinch-poundunitstransmissionthroughunitareaofßatmaterialofunitthicknessaretoberegard

8、edseparatelyasstandard.ThevaluesstatedininducedbyunitvaporpressuredifferencebetweentwospeciÞceachsystemmaynotbeexactequivalents;therefore,