Designation:D49−83(Reapproved2014)StandardTestMethodsofChemicalAnalysisofRedLead1ThisstandardisissuedunderthefixeddesignationD49;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThesetestmethodscoverproceduresforthechemicalanalysisofredleadhavingtheapproximateformulaPb3O4(probablyPbO2·2PbO).1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D50TestMethodsforChemicalAnalysisofYellow,Orange,Red,andBrownPigmentsContainingIronandManga-neseD215PracticefortheChemicalAnalysisofWhiteLinseedOilPaints(Withdrawn2005)3D280TestMethodsforHygroscopicMoisture(andOtherMatterVolatileUndertheTestConditions)inPigmentsD1193SpecificationforReagentWaterD1208TestMethodsforCommonPropertiesofCertainPigmentsD1301TestMethodsforChemicalAnalysisofWhiteLeadPigmentsD1959TestMethodforIodineValueofDryingOilsandFattyAcids(Withdrawn2006)33.TreatmentofSample3.1Ifthepigmentislumpyornotfinelyground,grindittoafinepowderandmixthoroughly.Largesamplesmaybethoroughlymixedandarepresentativeportiontakenandpowderediflumpyornotfinelyground.Thesampleinallcasesshallbethoroughlymixedbeforetakingportionsforanalysis.Allsamplesshallbepreservedinstopperedbottlesorcontainers.4.PurityofReagents4.1Reagentgradechemicalsshallbeusedinalltests.Unlessotherwiseindicated,itisintendedthatallreagentsshallconformtothespecificationsoftheCommitteeonAnalyticalReagentsoftheAmericanChemicalSocietywheresuchspecificationsareavailable.4Othergradesmaybeusedpro-videditisfirstascertainedthattherea...
