Designation:D1171−15StandardTestMethodforRubberDeterioration—SurfaceOzoneCrackingOutdoorsorChamber(TriangularSpecimens)1ThisstandardisissuedunderthefixeddesignationD1171;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodpermitstheestimationoftherelativeabilityofrubbercompoundsusedforapplicationsrequiringresistancetooutdoorweathering.1.2Thistestmethodisnotapplicabletomaterialsordinarilyclassedashardrubber,butisadaptabletomoldedorextrudedsoftrubbermaterialsandspongerubberforuseinwindowweatherstrippingaswellassimilarautomotiveapplications.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Foraspecifichazardstatement,seeNote1and8.1.NOTE1—Warning—Ozoneisahazardouschemical.2.ReferencedDocuments2.1ASTMStandards:2D518TestMethodforRubberDeterioration—SurfaceCracking(Withdrawn2007)3NOTE2—TheproceduresinTestMethodD518havebeenincorporatedasProceduresB1,B2,andB3inTestMethodsD1149.D1149TestMethodsforRubberDeterioration—CrackinginanOzoneControlledEnvironmentD4575TestMethodsforRubberDeterioration—ReferenceandAlternativeMethod(s)forDeterminingOzoneLevelinLaboratoryTestChambers3.SummaryofTestMethod3.1Proceduresaregivenforpreparingtriangularcross-sectionspecimens,formountingtheminstrainedconditionaroundspecifiedcircularmandrels,andforratingtheeffectofexposureasevidencedbytheappearanceofsurfacecracks.Thetype,time,temperature,andotherconditionsofexposurearenotgivenbutshallbeagreeduponbythepurchaserandthesellerandshallbecompletelydescribedinthetestreports.3.2Twotechniquesaredescribed,theexpos...
