Designation:E3007−15StandardPracticeforKineticValuesUsedtoEvaluatetheStudyofDecompositionReactionsbyThermogravimetry1ThisstandardisissuedunderthefixeddesignationE3007;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Itisthepurposeofthispracticetoprovidekineticparametersforreferencematerial(s)tobeusedforevaluationofthermogravimetrymethods,apparatus,andsoftwarewheredecompositionmasslossandassociatedtemperaturearemea-sured.Thispracticeaddressesnthorderreactions.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3ThereisnoInternationalOrganizationofStandards(ISO)equivalenttothisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E473TerminologyRelatingtoThermalAnalysisandRhe-ologyE1142TerminologyRelatingtoThermophysicalPropertiesE1641TestMethodforDecompositionKineticsbyThermo-gravimetryUsingtheOzawa/Flynn/WallMethodE2958TestMethodsforKineticParametersbyFactorJump/ModulatedThermogravimetryNOTE1—TestMethodsE1641andE2958determinethepre-exponentialfactorAinunitsofmin-1.Theseresultsshallbeconvertedtounitsofs-1forcomparisontovaluesquotedinthispracticeusing:ln@A,s21#5ln@A,min21#1ln@60s⁄min#5ln@A,min21#14.0943.Terminology3.1Definitions—Specifictechnicaltermsusedinthisprac-ticearedefinedinTerminologiesE473andE1142,includingArrheniusequation,derivative,reaction,andthermogravimet-ricanalysis.3.1.1decomposition,n—theprocessbywhichasubstanceisbrokenupintoconstituentparts,elementsorsimplercom-pounds.3.1.2kinetics,chemical,n—thestudyofthedependenceofthechemicalreactionrateon...
