Designation:D4611−08StandardTestMethodforSpecificHeatofRockandSoil1ThisstandardisissuedunderthefixeddesignationD4611;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofinstanta-neousandmeanspecificheatofrockandsoil.1.2Thistestmethodemploystheclassicalmethodofmixtures.Thisprovidesproceduresandapparatussimplerthanthosegenerallyusedinscientificcalorimetry,anaccuracythatisadequateformostrocksandsoils,andadegreeofprecisionthatisreproduciblebylaboratorytechniciansofaverageskill.Whilethistestmethodwasdevelopedfortestingrockandsoil,itiseasilyadaptabletomeasuringthespecificheatofothermaterials.1.3Thetestingprocedureprovidesaninstantaneousspecificheatoverthetemperature25to300°Corameanspecificheatinthattemperaturerange.1.4Thetestprocedureislimitedtodrysamples.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesaremathematicalconversionstoinch-poundunitsthatareprovidedforinforma-tiononlyandarenotconsideredstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C303TestMethodforDimensionsandDensityofPre-formedBlockandBoard–TypeThermalInsulationC351TestMethodforMeanSpecificHeatofThermalInsulation(Withdrawn2008)3D618PracticeforConditioningPlasticsforTestingD2766TestMethodforSpecificHeatofLiquidsandSolidsE230SpecificationandTemperature-ElectromotiveForce(EMF)TablesforStandardizedThermocouplesE344TerminologyRelatingtoThermometryandHydrom-etry3.Terminology3.1Definitions:3.1.1instantaneousspecificheat—therateofchangeofsampleenthalpy,h,perunitmasswithrespecttotemperatur...
