Designation:D7111−16(Reapproved2021)StandardTestMethodforDeterminationofTraceElementsinMiddleDistillateFuelsbyInductivelyCoupledPlasmaAtomicEmissionSpectrometry(ICP-AES)1ThisstandardisissuedunderthefixeddesignationD7111;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofselectedelementsinmiddledistillatefuelsbyinductivelycoupledplasmaatomicemissionspectrometry(ICP-AES).ThespecificelementsarelistedinTable1.Theconcentrationrangeofthistestmethodisapproximately0.1mg⁄kgto2.0mg/kg.Thetestmethodmaybeusedforconcentrationsoutsideofthisrange;however,theprecisionstatementsmaynotbeapplicable.Middledistillatefuelscoveredinthistestmethodhavealldistillationfractionscontainedwithintheboilingrangeof150°Cto390°C.Thisincludes,butisnotlimitedto,dieselfuelsandaviationturbinefuels.1.2Thistestmethodisnotintendedtoanalyzeinsolubleparticulates.However,verysmallparticulatematter(smallerthanamicrometre)willbecarriedintotheplasmaandbeincludedinthequantitativeanalysis.1.3Thistestmethodmaygivearesultthatishigherthanthetruevalueifananalyteispresentinthesampleinaformwhichissufficientlyvolatile.Forexample,hexamethyldisiloxanewillgenerateabiasedhighresultforsilicon.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Comm...
