Designation:E1615−16StandardTestMethodforIroninTraceQuantitiesUsingtheFerroZineMethod1ThisstandardisissuedunderthefixeddesignationE1615;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationofironintherangefrom0.01to0.2µg/gusingFerroZine2reagentsolution.Therangemaybeextendedthroughtheuseofa5-or10-cmcellorbysuitabledilutionofthesamplesolution.1.2Thistestmethodisintendedtobegeneralforthefinalstepsinthedeterminationofironanddoesnotincludeproceduresforsamplepreparation.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4ReviewthecurrentSafetyDataSheets(SDS)forde-tailedinformationconcerningtoxicity,first-aidprocedures,andsafetyprecautions.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forspecificwarningstatements,see7.4.2.ReferencedDocuments2.1ASTMStandards:3D1193SpecificationforReagentWaterE60PracticeforAnalysisofMetals,Ores,andRelatedMaterialsbySpectrophotometryE180PracticeforDeterminingthePrecisionofASTMMethodsforAnalysisandTestingofIndustrialandSpe-cialtyChemicals(Withdrawn2009)4E200PracticeforPreparation,Standardization,andStorageofStandardandReagentSolutionsforChemicalAnalysisE275PracticeforDescribingandMeasuringPerformanceofUltravioletandVisibleSpectrophotometers3.SummaryofTestMethod3.1Thistestmethodisbaseduponaphotometricdetermi-nationoftheFerroZine2complexwiththeiron(II)ion.5,6ThesampleisdissolvedinasuitablesolventandtheironisreactedwithFerroZinereagentsolutionwhichwillconvertthedis-solvedironcompoundstoformamagentacoloriron(II)complex.Theironcontentofthesamplesoluti...
