Designation:D2320−98(Reapproved2012)StandardTestMethodforDensity(RelativeDensity)ofSolidPitch(PycnometerMethod)1ThisstandardisissuedunderthefixeddesignationD2320;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofdensityandrelativedensitybypycnometer,andcanbeusedforpitchthatcanbehandledinfragments.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D4296PracticeforSamplingPitchE11SpecificationforWovenWireTestSieveClothandTestSieves3.Terminology3.1Definitions:3.1.1density—themassperunitofvolumeatastandardtesttemperature.3.1.2relativedensity—theratioofthemassofagivenvolumeofthematerialatastandardtesttemperaturetothatofanequalvolumeofwateratthesametemperature.4.SummaryofTestMethod4.1Thesampleisweighedanditsvolumedeterminedbythemassofwaterdisplaced.5.SignificanceandUse5.1ValuesofdensityandrelativedensityareusedforconvertingvolumestounitsofmassasrequiredinotherASTMstandardsandinsalestransactions.6.Apparatus6.1GlassPycnometer,capacityabout25mL,withaccu-ratelyfittingglassstopperwithacapillarytube1.0to2.0mmindiameter.6.2WaterBath,maintainedat25.060.1°Candprovidedwithmechanicalstirring.6.3VacuumPumporAspirator,capableofproducingavacuumof2.7kPa(20torr).NOTE1—20torr=20mmHg=2.66kPa.6.4Manometer,suitableformeasuringthespecifiedvacuum.6.5VacuumDesiccatorwithGuard.6.6Sieves,U.S.Standard2.36-mm(No.8)and600-µm(No.30)conformingtoSpecificationE11.7.ReagentsandMaterials7.1WettingAgent,0.1g/mLAerosolOT...
