Designation:D3455−11StandardTestMethodsforCompatibilityofConstructionMaterialwithElectricalInsulatingOilofPetroleumOrigin1ThisstandardisissuedunderthefixeddesignationD3455;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscoverscreeningforthecompatibilityofmaterialsofconstructionwithelectricalinsulatingoilforuseinelectricalequipment.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D877TestMethodforDielectricBreakdownVoltageofInsulatingLiquidsUsingDiskElectrodesD924TestMethodforDissipationFactor(orPowerFactor)andRelativePermittivity(DielectricConstant)ofElectri-calInsulatingLiquidsD971TestMethodforInterfacialTensionofOilAgainstWaterbytheRingMethodD974TestMethodforAcidandBaseNumberbyColor-IndicatorTitrationD1500TestMethodforASTMColorofPetroleumProducts(ASTMColorScale)D2413PracticeforPreparationofInsulatingPaperandBoardImpregnatedwithaLiquidDielectricD3487SpecificationforMineralInsulatingOilUsedinElectricalApparatus3.SignificanceandUse3.1Themagnitudeofthechangesintheelectricalpropertiesoftheinsulatingoilareofimportanceindeterminingthecontaminationoftheoilbythetestspecimen.3.2Physicalandchemicalchangesintheoilsuchascolor,interfacialtensionandacidity,alsoindicatesolubilityorotheradverseeffectsofthetestspecimenontheoil.3.3Physicalchangesofthetestspecimensuchashardness,swelling,anddiscolorationshowtheeffectoftheoilonthetestspecimenandareusedtodeterminethesuitabilityofthematerialforuseininsulatingoil.3.4Amateria...
