Designation:D6784−16StandardTestMethodforElemental,Oxidized,Particle-BoundandTotalMercuryinFlueGasGeneratedfromCoal-FiredStationarySources(OntarioHydroMethod)1ThisstandardisissuedunderthefixeddesignationD6784;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodappliestothedeterminationofelemental,oxidized,particle-bound,andtotalmercuryemis-sionsfromcoal-firedstationarysources.1.2Thistestmethodisapplicabletoelemental,oxidized,particle-bound,andtotalmercuryconcentrationsrangingfromapproximately0.5to100µg/Nm3.1.3Thistestmethoddescribesequipmentandproceduresforobtainingsamplesfromeffluentductsandstacks,equip-mentandproceduresforlaboratoryanalysis,andproceduresforcalculatingresults.1.4Thistestmethodisapplicableforsamplingelemental,oxidized,andparticle-boundmercuryinfluegasesofcoal-firedstationarysources.Itmaynotbesuitableatallmeasurementlocations,particularlythosewithhighparticulateloadings,asexplainedinSection16.1.5Methodapplicabilityislimitedtofluegasstreamtemperatureswithinthethermalstabilityrangeofthesamplingprobeandfiltercomponents.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.1.7ThisstandardrequiresuserstobefamiliarwithEPAstack-gassamplingproceduresasstatedinEPAMethods1–4,Method5,andMethod17.1.8Themethodrequiresahighlevelofexperienceandqualitycontrolbothinthefieldtestingandanalyticalproce-duresinordertoobtainhighqualitydata.1.9Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1193SpecificationforReagentWaterD1356TerminologyRelatingtoSamplingandAnalysisofAtm...
