Designation:D3804−02(Reapproved2014)StandardTestMethodforIroninPaintDriersbyEDTAMethod1ThisstandardisissuedunderthefixeddesignationD3804;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthetitrimetricdeterminationofironinliquidirondrierssolubleinisopropylalcoholandutilizesthedisodiumsaltofethylenediaminetetraaceticaciddihydrate(EDTA).1.2Thistestmethodislimitedtothedeterminationoftheironcontentofaliquiddrierthatdoesnotcontainotherdrierelements.Thismethodisnotapplicabletodrierblends.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D600SpecificationforLiquidPaintDriersD1193SpecificationforReagentWaterE180PracticeforDeterminingthePrecisionofASTMMethodsforAnalysisandTestingofIndustrialandSpe-cialtyChemicals(Withdrawn2009)3E300PracticeforSamplingIndustrialChemicals3.SummaryofTestMethod3.1TheliquidirondrierisdilutedwithisopropylalcoholandtheironchelatedwithexcessstandardEDTA.ThesolutionisbufferedandtheexcessEDTAistitratedwithstandardzincchloridesolutiontotheEriochromeBlackTendpoint.4.SignificanceandUse4.1Thistestmethodmaybeusedtoconfirmthestatedcontentofaliquidirondriersolubleinisopropylalcoholandmanufacturedforuseinthecoatingsindustry.Thecontentdeterminesactivitylevel.5.Interferences5.1AllcationsthatcanbetitratedwithEDTAinalkalinemediainterfereandmustnotbepresentinthesampleormustbemasked.6.Reagents6.1PurityofReagents—Reagentgradechemicalsshallbeusedinalltests.Unlessotherwiseindicated,itisintendedthatallr...
