Designation:D3179–02e1StandardTestMethodsforNitrogenintheAnalysisSampleofCoalandCoke1ThisstandardisissuedunderthefixeddesignationD3179;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.e1NOTE—Table1titlewaseditoriallycorrectedinJune2004.1.Scope1.1Thesetestmethodscoverthedeterminationoftotalnitrogeninsamplesofcoalandcoke.Theanalyticaldatafromthesetestmethodsshallbereportedaspartofultimateanalysiswhereultimateanalysisisrequested.Ifultimateanalysisisnotrequested,thevalueshallbereportedaccordingtotherequest.Twomethodsareincludedasfollows:SectionsTestMethodA—Kjeldahl-GunningMacroAnalysis,withanalter-nativetechniqueincluded9to16TestMethodB—Kjeldahl-GunningSemi-MicroDetermination17to231.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.2.ReferencedDocuments2.1ASTMStandards:2D121TerminologyofCoalandCokeD346PracticeforCollectionandPreparationofCokeSamplesforLaboratoryAnalysisD1193SpecificationforReagentWaterD2013PracticeforPreparingCoalSamplesforAnalysisD3173TestMethodforMoistureintheAnalysisSampleofCoalandCokeD3176PracticeforUltimateAnalysisofCoalandCokeD3180PracticeforCalculatingCoalandCokeAnalysesfromAs-DeterminedtoDifferentBases2IEEE/ASTMSI10StandardforUseoftheInternationalSystemofUnits(SI):TheModernMetricSystem3.Terminology3.1Fordefinitionsoftermsusedinthesetestmethods,refertoDefinitionsD121.Foranexplanationofthemetricsystemincludingunits,symbols,andconversionfactors,seeIEEE/ASTMSI10.4.SummaryofTestMethods4.1Intheseprocedures,nitrogenisconvertedintoammo-niumsaltsbydestructivedigestionofthesamplewithahot,catalyzedmixture...
