Designation:D3717−85a(Reapproved2022)StandardTestMethodforLowConcentrationsofAntimonyinPaintbyAtomicAbsorptionSpectroscopy1ThisstandardisissuedunderthefixeddesignationD3717;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofthecontentofantimonyintherangebetween50and200ppm(mg/kg)presentinthesolidsofliquidcoatingsorindriedfilmsobtainedfrompreviouslycoatedsubstrates.Thereisnoreasontobelievethathigherlevelscouldnotbedeterminedbythistestmethod,providedthatappropriatedilutionsandadjust-mentsinspecimensizeandreagentquantitiesaremade.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardstatementsaregiveninSection7.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1193SpecificationforReagentWaterD2832GuideforDeterminingVolatileandNonvolatileCon-tentofPaintandRelatedCoatings3.SummaryofTestMethod3.1Thesampleofliquidcoatingordriedfilmispreparedforanalysisbydryashingat500°C,followedbyrefluxingwithhydrochloricacidandstannouschloride.Theantimonycontentoftheacidextractisdeterminedbyatomicabsorptionspectroscopy.4.SignificanceandUse4.1Thepermissiblelevelofheavymetalsincertaincoat-ingsisspecifiedbygovernmentalregulatoryagencies.Thistestmethodpro...
