Designation:F1593−08(Reapproved2016)StandardTestMethodforTraceMetallicImpuritiesinElectronicGradeAluminumbyHighMass-ResolutionGlow-DischargeMassSpectrometer1ThisstandardisissuedunderthefixeddesignationF1593;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversmeasuringtheconcentrationsoftracemetallicimpuritiesinhighpurityaluminum.1.2Thistestmethodpertainstoanalysisbymagnetic-sectorglowdischargemassspectrometer(GDMS).1.3Thealuminummatrixmustbe99.9weight%(3N-grade)pure,orpurer,withrespecttometallicimpurities.Theremustbenomajoralloyconstituent,forexample,siliconorcopper,greaterthan1000weightppminconcentration.1.4ThistestmethoddoesnotincludealltheinformationneededtocompleteGDMSanalyses.Sophisticatedcomputer-controlledlaboratoryequipmentskillfullyusedbyanexperi-encedoperatorisrequiredtoachievetherequiredsensitivity.Thistestmethoddoescovertheparticularfactors(forexample,specimenpreparation,settingofrelativesensitivityfactors,determinationofsensitivitylimits,etc.)knownbytherespon-sibletechnicalcommitteetoaffectthereliabilityofhighpurityaluminumanalyses.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E135TerminologyRelatingtoAnalyticalChemistryforMetals,Ores,andRelatedMaterialsE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethodE1257GuideforEvaluatingGrindingMaterialsUsedforSurfacePreparationinSpectrochemicalAnalysis3.Terminology3.1TerminologyinthistestmethodisconsistentwithTerminologyE135.Requiredterminologyspecifictothi...
