Designation:D7607/D7607M−19StandardTestMethodforAnalysisofOxygeninGaseousFuels(ElectrochemicalSensorMethod)1ThisstandardisissuedunderthefixeddesignationD7607/D7607M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodisforthedeterminationofoxygen(O2)ingaseousfuelsandfueltypegases.Itisapplicabletothemeasurementofoxygeninnaturalgasandothergaseousfuels.Thismethodcanbeusedtomeasureoxygeninhelium,hydrogen,nitrogen,argon,carbondioxide,mixedgases,pro-cessgases,andambientair.Theapplicablerangeis0.1ppm(v)to25%byvolume.1.2Units—ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemarenotnecessarilyexactequiva-lents;therefore,toensureconformancewiththestandard,eachsystemshallbeusedindependentlyoftheother,andvaluesfromthetwosystemsshallnotbecombined.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D4150TerminologyRelatingtoGaseousFuelsE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod3.Terminology3.1Forgeneralterminology,seeTerminologyD4150.3.2Definitions:3.2.1electrochemicalsensor,n—achemicalsensorthatquantitativelymeasuresananalytebytheelectricaloutputproducedbythesensor.3.2.2...
