Designation:D4611−16StandardTestMethodforSpecificHeatofRockandSoil1ThisstandardisissuedunderthefixeddesignationD4611;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationofinstanta-neousandmeanvaluesofthespecificheatofrockandsoil.1.2Thistestmethodemploystheclassicalmethodofmixtures,whichinvolveproceduresandanapparatusthataresimplerthanthosegenerallyusedinscientificcalorimetry,butwithanaccuracythatisadequateformostrocksandsoils.Whilethistestmethodwasdevelopedfortestingrockandsoil,itcanbeadaptedtomeasurethespecificheatofothermaterials.1.3Thetestingprocedureprovidesaninstantaneousspecificheatovertemperaturesrangingfrom25to300°Corameanspecificheatinthattemperaturerange.1.4Thetestprocedureislimitedtodryspecimensofsoilandrock.1.5Units—ThevaluesstatedinSIunitsaretoberegardedasthestandard.Nootherunitsofmeasurementsareincludedinthisstandard.1.6AllobservedandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026.1.6.1Theprocedureusedtospecifyhowdataarecollected/recordedorcalculatedinthisstandardareregardedastheindustrystandard.Inaddition,theyarerepresentativeofthesignificantdigitsthatgenerallyshouldberetained.Theproce-duresuseddonotconsidermaterialvariation,purposeforobtainingthedata,specialpurposestudies,oranyconsider-ationsfortheuser’sobjectives;anditiscommonpracticetoincreaseorreducesignificantdigitsofreporteddatatobecommensuratewiththeseconsiderations.Itisbeyondthescopeofthisstandardtoconsidersignificantdigitsusedinanalyticalmethodsforengineeringdesign1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimita...
