Designation:D6493−11(Reapproved2015)StandardTestMethodsforSofteningPointofHydrocarbonResinsandRosinBasedResinsbyAutomatedRing-and-BallApparatus1ThisstandardisissuedunderthefixeddesignationD6493;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodsareintendedfordeterminingthesofteningpointofhydrocarbonresins,rosinbasedresinsandsimilarmaterialsbymeansofanautomatedring-and-ballapparatus.Portionsaresimilarintechnicalcontenttotheautomated-apparatusversionsofTestMethodsD36,E28,andISO4625.1.1.1Thering-and-ballsofteningpointofahydrocarbonresinandrosinbasedresinsmayalsobedeterminedwithlowerprecisionusingthemanualring-and-ballsofteningpointpro-cedureinTestMethodsE28.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandardmethoddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D36TestMethodforSofteningPointofBitumen(Ring-and-BallApparatus)E1SpecificationforASTMLiquid-in-GlassThermometersE28TestMethodsforSofteningPointofResinsDerivedfromPineChemicalsandHydrocarbons,byRing-and-BallApparatusE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod2.2ISOStandard:ISO4625Bindersforpaintsandvarnishes—Determinationofsofteningpoint–Ring-and-ballmethod33.SummaryofTestMethod3.1Thesetestmethodsareforthedeterminationofthesofteningpoint—thetemperatureatwhichadiskoftheresinheldwithinahorizontalringisforceddownwardadistanceof25.4mm(1.00in.)undertheweightofastandardsteelball,asthespecimenisheatedat5°...
