Designation:D7653−10StandardTestMethodforDeterminationofTraceGaseousContaminantsinHydrogenFuelbyFourierTransformInfrared(FTIR)Spectroscopy1ThisstandardisissuedunderthefixeddesignationD7653;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThistestmethodemploysanFTIRgasanalysissystemforthedeterminationoftraceimpuritiesingaseoushydrogenfuelsrelativetothehydrogenfuelqualitylimitsdescribedinSAETIRJ2719(April2008)orinhydrogenfuelqualitystandardsfromothergoverningbodies.ThisFTIRmethodisusedtoquantifygasphaseconcentrationsofmultipletargetcontaminantsinhydrogenfueleitherdirectlyatthefuelingstationoronanextractedsamplethatissenttobeanalyzedelsewhere.Multiplecontaminantscanbemeasuredsimultane-ouslyaslongastheyareinthegaseousphaseandabsorbintheinfraredwavelengthregion.ThedetectionlimitsaswellasspecifictargetcontaminantsforthisstandardwereselectedbaseduponthosesetforthinSAETIRJ2719.1.2ThistestmethodallowsthetestertodeterminewhichspecificcontaminantsforhydrogenfuelimpuritiesthatareinthegaseousphaseandareactiveinfraredabsorberswhichmeetorexceedthedetectionlimitssetbySAETIRJ2719fortheirparticularFTIRinstrument.Specifictargetcontaminantsinclude,butarenotlimitedto,ammonia,carbonmonoxide,carbondioxide,formaldehyde,formicacid,methane,ethane,ethylene,propaneandwater.Thistestmethodmaybeextendedtootherimpuritiesprovidedthattheyareinthegaseousphaseorcanbevaporizedandareactiveinfraredabsorbers.1.3Thistestmethodisintendedforanalysisofhydrogenfuelsusedforfuelcellfeedgasesorforinternalcombustionenginefuels.Thismethodmayalsobeextendedtotheanalysisofhighpurityhydrogengasusedforotherapplicationsincludingindustrialapplications,providedthattargetimpuri-tiesandrequiredlimitsarealsoidentified.1.4Thistestmethodcanbeusedtoanalyzehydrogenfuelsampleddirectlyatthepoint-of-usefromfuelings...
