Designation:D1817−05(Reapproved2011)StandardTestMethodforRubberChemicals—Density1ThisstandardisissuedunderthefixeddesignationD1817;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofthedensityofsolidchemicalsusedasrubberadditivesduringprocessingandmanufacture.Itisintendedfordeterminingthedensityoftherubberchemicalitselfandnotforthedeterminationoftheeffectivedensityofthechemicalinarubber.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E1SpecificationforASTMLiquid-in-GlassThermometersE300PracticeforSamplingIndustrialChemicals3.SummaryofTestMethod3.1Thedensityofthetestspecimenisobtainedviawetpycnometry.4.SignificanceandUse4.1Thedensityofarubberchemicalisusedforcalculatingtherubbercompoundvolume,whichisusedtodeterminethecostofarubberproduct.Thedensitymayalsobeusedasarawmaterialcontroltool.5.Apparatus5.1Pycnometer,50-cm3capacity.NOTE1—Theweldtypewiththecapsealontheoutsideoftheneckofthebottleispreferredbecausethereislessdangeroftrappingairjustunderthecapillarytubethanwithtypeshavingthegroundsealontheinsideoftheneck.Thestoppermaycontainathermometer.However,thecontrolofthetemperatureisthroughtheadjustmentofthewaterbathratherthanbythisthermometer.5.2WaterBath,maintainedat2360.5°Candequippedwithastirringdevice.5.3PressureMeter—Agageormanometerthatisaccurateto0.2kPa,isrequiredtomeasurethedifferentialpressurebetweentheoutsideandinsideofthesystem.5.3.1Alternatively,adeviceformeasuringtheabso...
