Designation:E2319−04(Reapproved2011)StandardTestMethodforDeterminingAirFlowThroughtheFaceandSidesofExteriorWindows,CurtainWalls,andDoorsUnderSpecifiedPressureDifferencesAcrosstheSpecimen1ThisstandardisissuedunderthefixeddesignationE2319;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThistestmethodisamodifiedversionofTestMethodE283,andprovidesastandardlaboratoryprocedurefordeter-miningairleakageseparatelythroughthefaceandsidesofexteriorwindows,curtainwalls,anddoorsunderspecifieddifferentialpressureconditionsacrossthespecimen.Thetestmethoddescribedisfortestswithconstanttemperatureandhumidityacrossthespecimen.NOTE1—Detailingbuildingswithcontinuousairbarriersrequiresthattheairbarrierplaneinawindowsystembeclearlydefined.Whenspecialcircumstancesdictatethattheairbarrierbesealedtothewindowframeatalocationotherthanthatusedtosealthespecimentothetestchamberinthistestmethod,additionallaboratorytestingmayberequiredtoclarifypotentialpathsofairflowthroughthesidesofthewindowframe.Theadaptedtestingproceduredescribedhereinisintendedforthispurpose.1.2Thislaboratoryprocedureisapplicabletoexteriorwindows,curtainwalls,anddoorsandisintendedtomeasureonlysuchleakageassociatedwiththeassemblyandnottheinstallation.Thetestmethodcanbeadaptedforthelatterpurpose.NOTE2—Performingtestsatnon-ambientconditionsorwithatem-peraturedifferentialacrossthespecimenmayaffecttheairleakagerate.Thisisnotaddressedbythistestmethod.1.3Thistestmethodisintendedforlaboratoryuse.PersonsinterestedinperformingfieldairleakagetestsoninstalledunitsshouldreferenceTestMethodE783.TestMethodE783willnotprovidetheuserwithameansofdeterminingairflowthroughthesidesoftestedspecimens.1.4Personsusingthisprocedureshouldbeknowledgeableintheareasoffluidmechanics,instrumentationpractices,andshallhaveageneralunderstandi...