Designation:D3667−16StandardSpecificationforRubberSealsUsedinFlat-PlateSolarCollectors1ThisstandardisissuedunderthefixeddesignationD3667;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thisspecificationcoversthegeneralrequirementsformaterialsusedinrubbersealsofflat-platesolarcollectors,exceptverticallymountedpassivecollectors.Particularappli-cationsmaynecessitateotherrequirementsthatwouldtakeprecedenceovertheserequirementswhenspecified.1.2Thedesignrequirementpertainsonlytopermissibledeflectionsoftherubberduringthermalexpansionorcontrac-tionofthesealinuseandthetolerancesindimensionsofmoldedandextrudedseals.1.3Thisspecificationdoesnotincluderequirementsper-tainingtothefabricationorinstallationoftheseals.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5ThefollowingsafetyhazardscaveatpertainsonlytoSection9,TestMethods,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C661TestMethodforIndentationHardnessofElastomeric-TypeSealantsbyMeansofaDurometerC717TerminologyofBuildingSealsandSealantsC719TestMethodforAdhesionandCohesionofElasto-mericJointSealantsUnderCyclicMovement(HockmanCycle)D395TestMethodsforRubberProperty—CompressionSetD412TestMethodsforVulcanizedRubberandThermoplas-ticElastomers—TensionD865TestMethodforRubber—DeteriorationbyHeatinginAir(TestTubeEnclosure)D1149TestMethodsforRubberDeterioration—CrackinginanOzoneControlledEnvironmentD1229TestMethodforRubberProperty—Compre...