Designation:C1039−85(Reapproved2015)AnAmericanNationalStandardStandardTestMethodsforApparentPorosity,ApparentSpecificGravity,andBulkDensityofGraphiteElectrodes1ThisstandardisissuedunderthefixeddesignationC1039;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscoverthedeterminationofapparentporosity,apparentspecificgravity,andbulkdensityofcorestakenfromgraphiteelectrodesmanufacturedforuseinelectricarcfurnaces.(SeealsoC559andC838.)1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C559TestMethodforBulkDensitybyPhysicalMeasure-mentsofManufacturedCarbonandGraphiteArticlesC783PracticeforCoreSamplingofGraphiteElectrodesC838TestMethodforBulkDensityofAs-ManufacturedCarbonandGraphiteShapes3.SignificanceandUse3.1Theresultsofthesetestmethodscanbeusedasaqualitycontrolorqualityassurancecheckofelectrodeseitherduringtheirmanufactureorattheuser’slocation.Theresultsofthesemethodstendtobeoperator-sensitive,therefore,caremustbetakenintheexecutionofthetestinordertoobtainreproducibleresults.4.Apparatus4.1DryingOven.4.2AnalyticalBalance,capableofweighingto0.1g.4.3AutoclaveorPressureVessel,capableofwithstandingoneatmosphereexternallyanddesignedtowithstandatleast448kPato483kPainternalpressure.4.3.1Thepressurevesselshallbeprovidedwithanopentopcontainertoholdthespecimensandameansofintroducingwateraroundthespecimenswhilespecimensarebeingheldatlowpressure.4.4VacuumPump.4.5WireLoop,HalterorStirrup,fabricatedwith22AWG(9.643mm)copperwireshall...
