Designation:D7314−10(Reapproved2015)StandardPracticeforDeterminationoftheHeatingValueofGaseousFuelsusingCalorimetryandOn-line/At-lineSampling1ThisstandardisissuedunderthefixeddesignationD7314;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticeisforthedeterminationoftheheatingvaluemeasurementofgaseousfuelsusingacalorimeter.Heatingvaluedeterminationofsamplegassescontainingwatervaporwillrequirevaporphasemoisturemeasurementsofthepre-combustionsamplegasaswellasthenon-condensedgassesexitingthecalorimeter.Instrumentsequippedwithappropriateconditionersandalgorithmsmayprovideheatingvalueresultsonanetorgrossanddryorwetbasis.1.2Thispracticeisapplicabletoat-lineandin-lineinstru-mentsthatareoperatedfromtimetotimeonacontinuousbasis.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1070TestMethodsforRelativeDensityofGaseousFuelsD1826TestMethodforCalorific(Heating)ValueofGasesinNaturalGasRangebyContinuousRecordingCalorimeterD3588PracticeforCalculatingHeatValue,CompressibilityFactor,andRelativeDensityofGaseousFuelsD3764PracticeforValidationofthePerformanceofProcessStreamAnalyzerSystemsD4150TerminologyRelatingtoGaseousFuelsD4891TestMethodforHeatingValueofGasesinNaturalGasandFlareGasesRangebyStoichiometricCombus-tionD5287PracticeforAutomaticSamplingofGaseousFuelsD5503PracticeforNaturalGasSample-HandlingandCon-ditioningSystemsforPipelineInstrumentationD6122PracticeforValidationofthePerformanceofMulti-variateOnline,At-Line,andLab...
