Designation:D3701−01(Reapproved2012)StandardTestMethodforHydrogenContentofAviationTurbineFuelsbyLowResolutionNuclearMagneticResonanceSpectrometry1ThisstandardisissuedunderthefixeddesignationD3701;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodcoversthedeterminationofthehydro-gencontentofaviationturbinefuels.1.2UseTestMethodsD4808forthedeterminationofhydrogeninotherpetroleumliquids.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Thepreferredunitsaremasspercenthydrogen.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Foraspecificwarningstatement,see6.1.2.ReferencedDocuments2.1ASTMStandards:2D1322TestMethodforSmokePointofKerosineandAviationTurbineFuelD1740TestMethodforLuminometerNumbersofAviationTurbineFuels(Withdrawn2006)3D4057PracticeforManualSamplingofPetroleumandPetroleumProductsD4808TestMethodsforHydrogenContentofLightDistillates,MiddleDistillates,GasOils,andResiduabyLow-ResolutionNuclearMagneticResonanceSpectros-copy3.SummaryofTestMethod3.1Asampleofthematerialiscomparedinacontinuouswave,low-resolution,nuclearmagneticresonancespectrom-eterwithareferencestandardsampleofapurehydrocarbon.Theresultsfromtheintegratorontheinstrumentareusedasameansofcomparingthetheoreticalhydrogencontentofthestandardwiththatofthesample,theresultbeingexpressedasthehydrogencontent(percentmassbasis)inthesample.4.SignificanceandUse4.1Thecombustionqualityofaviationturbinefuelhastraditionallybeencontrolledinspecificationsbysuchtestsassmokepoint(seeTestMethodD1322),smokevolatilityindex,aromaticco...
