Designation:D3335−85a(Reapproved2014)StandardTestMethodforLowConcentrationsofLead,Cadmium,andCobaltinPaintbyAtomicAbsorptionSpectroscopy1ThisstandardisissuedunderthefixeddesignationD3335;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodcoversthedeterminationoflead2contentsbetween0.01and5%,cadmiumcontentsbetween50and150ppm(mg/kg),andcobaltcontentsbetween50and2000ppm(mg/kg)presentinthenonvolatileportionofliquidcoatingsorcontainedindriedfilms.Thereisnoreasontobelievethathigherlevelsofallthreeelementscouldnotbedeterminedbythistestmethod,providedthatappropriatedilutionsandadjustmentsinspecimensizeandreagentquan-titiesaremade.1.2Onlypigmentedcoatingswereusedforevaluatingthistestmethod,butthereisnoreasontobelievethatvarnishesandlacquerscouldnotbeanalyzedsuccessfully,providedthatappropriateprecautionsaretaken.1.3Thistestmethodisnotapplicabletothedeterminationofleadinsamplescontainingantimonypigments(lowrecov-eriesareobtained).1.4Ifleadispresentinthesampletobeanalyzedintheformofanorganicleadcompoundataconcentrationgreaterthan0.1%,smalllossesofleadmayoccur,resultinginslightlypoorerprecisionthanshowninSection12.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.SpecifichazardstatementsaregiveninSection7.2.ReferencedDocuments2.1ASTMStandards:3D1193SpecificationforReagentWaterD2832GuideforDeterminingVolatileandNonvolatileCon-tentofPaintandRelatedCoatings3.SummaryofTestMethod3.1Thespecim...
