Designation:F2378−05(Reapproved2011)StandardTestMethodforSealabilityofSheet,Composite,andSolidForm-in-PlaceGasketMaterials1ThisstandardisissuedunderthefixeddesignationF2378;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversameansofevaluatingthesealingpropertiesofsheet,composite,andsolidform-in-placegasketmaterials(seeClassificationF104orF868)atroomtemperature,andmaybeusedforfluid(gasorliquid)leakratemeasurements.Itutilizesrelativelyshortholdtimesandisnotintendedtopredictlong-termperformanceinapplication.1.2Thistestmethodissuitableforevaluatingthesealingcharacteristicsofagasketmaterialunderdifferentpressloadsbymeasuringtheleakagerate.Thistestmethodmaybeusedasanacceptancetestwhentheproduceranduserhaveagreedtospecifictestconditionsforthefollowingparameters:(1)testmedium,(2)internalpressureofthemedium,(3)pressloadonthegasketspecimen,and(4)thesurfacefinishoftheplatens.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesandtodeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D2000ClassificationSystemforRubberProductsinAuto-motiveApplicationsF104ClassificationSystemforNonmetallicGasketMateri-alsF868ClassificationforLaminatedCompositeGasketMate-rials2.2ANSIStandard:3B57.1CompressedGasCylinderValveOutletandInletConnections3.Terminology3.1Definitions:3.1.1pressload—theloadappliedbythehydraulicpresstothetestassemblydividedbythegasketarea.Thepressloadisnotcompensatedforastheinternalpressureisincreased,sothegasketstressisreducedforthetestconditions.3.1.2solidform-in-p...
