Designation:D6549−06(Reapproved2015)StandardTestMethodforDeterminationofCoolingCharacteristicsofQuenchantsbyCoolingCurveAnalysiswithAgitation(DraytonUnit)1ThisstandardisissuedunderthefixeddesignationD6549;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoverstheequipmentandtheproce-dureforevaluationofquenchingcharacteristicsofaquenchingfluidbycoolingratedetermination.1.2Thistestmethodisdesignedtoevaluatequenchingfluidswithagitation,usingtheDraytonAgitationUnit.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E220TestMethodforCalibrationofThermocouplesByComparisonTechniquesE230SpecificationandTemperature-ElectromotiveForce(EMF)TablesforStandardizedThermocouples2.2SAEStandards:3AMS5665NickelAlloyCorrosionandHeatResistantBars,ForgingsandRings2.3OtherStandards:4WolfsonEngineeringGroupSpecificationLaboratoryTestsforAssessingtheCoolingCurveCharacteristicsofIndus-trialQuenchingMedia2.4ASTMAdjuncts:5ADJD6300D2PP,DeterminationofPrecisionandBiasDataforUseinTestMethodsforPetroleumProductsandLubricants3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1aqueouspolymerquenchant—anaqueouspolymerquenchantisanaqueoussolutioncontainingawatersolublepolymer,typicallyincludingpoly(alkyleneglycol),poly(ethyloxazoline),poly(sodiumacrylate),andpoly(vinylpyrrolidone)(1,2,3).6Thequenchantsolutionalsotypicallycontainsadditivesforcorrosionandfoamcontrol,ifneeded.Quenchseverityofaqueouspolymerquenchantsisdependentonconcentr...
