Designation:F1909−98(Reapproved2012)StandardSpecificationforPreformedOpen–CellSpongeRubberPailandDrumGaskets1ThisstandardisissuedunderthefixeddesignationF1909;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoverspreformedopen–cellspongerubbergasketsofthefollowingclassesforuseinneworreconditionedpailsordrums.1.1.1ClassA—Non–OilResistant.1.1.2ClassB—OilResistant.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3ThefollowingsafetyhazardscaveatpertainsonlytoSection10,GeneralTestMethods.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.NOTE1—ISOEquivalencyStatement—Thisproposedspecificationwasfoundtobenotequivalent.2.ReferencedDocuments2.1ASTMStandards:2D395TestMethodsforRubberProperty—CompressionSetD471TestMethodforRubberProperty—EffectofLiquidsD573TestMethodforRubber—DeteriorationinanAirOvenD575TestMethodsforRubberPropertiesinCompressionD1056SpecificationforFlexibleCellularMaterials—SpongeorExpandedRubberD3182PracticeforRubber—Materials,Equipment,andPro-ceduresforMixingStandardCompoundsandPreparingStandardVulcanizedSheetsD3183PracticeforRubber—PreparationofPiecesforTestPurposesfromProducts3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1cellularmaterial—agenerictermformaterialscon-tainingmanyopencellsdispersedthroughoutthemass.3.1.2flexiblecellularmaterial—aflexible,cellularmaterialthatwillnotrupturewithin60swhenaspecimen200by25by25mm(8by1by1in.)isbentarounda25mm(1in.)diametermandrelatauniformrateofonelapin5sintheformofahelixatatemperaturebetween18and29°C(65and85°F).3.1.3naturalskin—arelativelydenselayeratthes...
