AMERICANSOCIETYFORTESTINGANDMATERIALS1916RaceSt.,Philadelphia,Pa.19103ReprintedfromtheAnnualBookofASTMStandards,CopyrightASTMIfnotlistedinthecurrentcombinedindex,willappearinthenextedilion.StandardTestMethodforSTAININGPROPERTIESOFASPHALT'ThisstandardisissuedunderthefixeddesignationD1328:thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor.inthecaseofrevision.theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(E)indicatesaneditorialchangesincethelastrevisionorreapproval.1.ScopeI.IThistestmethodcoversthedeterminationofthestainingpropertiesofasphaltbythemod-ifiedpressuremethod.1.2Thistestmethodisapplicabletoasphaltshavingring-and-ballsofteningpointsof65°C(150°F)orgreater.andshouldnotbeusedfortestingasphaltshavingsofteningpointsbelow65°C.exceptforthosehavingapenetrationof35orless.1.3ThevaluesstatedinSiunitsaretoberegardedasthestandard.Thevaluesstatedininch-poundunitsareprovidedforinformation.1.4Thisstutidurdmq'itirohehazardoiisMU-tcriuls.opcwtiotis.utidqiiipimvit.Thisstandarddoesnotpirrporttourldrc'ssallol'ilii~.suli~íyprob-1wi.sn.v.sociutcJdwithilsi~sc.Itis[liercq?otisihil-i[yorwlio~wrIISLI?~thisstutidarùtotatisiiltutidc~,stuhlislruppropriutesufdyundIiwItIiprac[iiwutidrlctiwnirretlicuppliiubilityo/'regiiIatorj*liini-futionsprior(OIISC.2.ApplicableDocuments3.IASTMStaii~lurd.s:D36TestMethod-forSofteningPointofBi-D140MethodsofSamplingBituminoustumen(Ring-and-BallApparatus)'Materials"3.SummaryofMethod3.1Theasphaltisplacedinaspeciallyde-signedmoldandpressedagainstastackofstand-ardpapersbyapplicationofgaspressure.Thenumberofpapersstainedbyexudedoilisdesig-natedastheStainindexoftheasphalt.4.SignificanceandUse4.1Thistestmethodmeasuresthetendencyforoilcomponentstoseparatespontaneouslyfrombitumens.4.2TheStainIndexisrelatedtothethermo-dynamicstabilityoftheasphalt.HigherStainIndexvaluesindicatelowerstability.5.ApparatusandMateriais5.1SrniriMolds.asshowninFig.I.5.3Mold.-f.sscmblsJig,asshowninFig.3.5.3Pr1w...
