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1、Designation:B985?12StardPracticefSamplingAluminumIngotsBilletsCastingsFinishedSemiFinishedWroughtAluminumProductsfCompositionalAnalysis1ThisstardisissuedunderthefixeddesignationB985thenumberimmediatelyfollowingthedesigna
2、tionindicatestheyearofiginaladoptioninthecaseofrevisiontheyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperepsilon()indicatesaneditialchangesincethelastrevisionreapproval.1.Scope1.1Thispracti
3、cedescribesproceduresfsamplingunwroughtaluminumingotsbilletscastingsfinishedsemifinishedwroughtaluminumproductstoobtainarepresentativesamplefdeterminingchemicalcomposition.1.1.1Chemicalcompositionsdeterminedfromsamplesob
4、tainedinaccdancewiththisstardpracticemaydifferfromthebulkchemicalcompositiondeterminedfromsamplestakenwheningotscastingsarepoured.Thesedifferencescanbeduetoelementalsegregationthatoccursduringsolidificationproceduresthat
5、removeenrichedmaterial(e.g.ingotscalping)proceduresthatremovedepletedareas(e.g.removaloftheriserfromacasting).1.1.2Analysisofsamplesobtainedfromunwroughtaluminumingotsbilletscastingsfinishedsemifinishedwroughtaluminumpro
6、ductscanbeusedtodetermineifthepiecesampledmeetsTheAluminumAssociationInc.registeredchemicalcompositionlimitsotherspecifiedchemicalcompositionlimitsfthealloy.Analysisofsuchsamplesshallnotsupersedetheanalysisofsamplestaken
7、duringpouringofcastingsingotsinaccdancewithE716analyzedinaccdancewithE607E1251E34EN14242shallnotbeusedfdeterminingcompliancewithchemicalcompositionrequirementsfanentirecastlotpartthereof.NOTE1—Piecesmayincludeingotsfging
8、scoilssheetsextrusionscastingsetc.Asingleunwroughtingotbilletmayproducemultiplefinishedsemifinishedpieces.NOTE2—CertificationofentirecastlotsshouldbedeterminedusingsamplestakenduringpouringofcastingsingotsinaccdancewithE
9、716analyzedinaccdancewithE607E1251E34EN14242.1.2Units—ThevaluesstatedineitherSIunitsinchpoundunitsaretoberegardedseparatelyasstard.Thevaluesstatedineachsystemmaynotbeexactequivalentstherefeeachsystemshallbeusedindependen
10、tlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconfmancewiththestard.1.3Thisstarddoesnotpurpttoaddressallofthesafetyconcernsifanyassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstardtoestablishappro
11、priatesafetyhealthpracticesdeterminetheapplicabilityofregulatylimitationspritouse.2.ReferencedDocuments2.1ASTMStards:2B881TerminologyRelatingtoAluminumMagnesiumAlloyProductsE34TestMethodsfChemicalAnalysisofAluminumAlumin
12、umBaseAlloysE135TerminologyRelatingtoAnalyticalChemistryfMetalsesRelatedMaterialsE607TestMethodfAtomicEmissionSpectrometricAnalysisAluminumAlloysbythePointtoPlaneTechniqueNitrogenAtmosphere(Withdrawn2011)3E716PracticesfS
13、amplingSamplePreparationofAluminumAluminumAlloysfDeterminationofChemicalCompositionbySpectrochemicalAnalysisE1251TestMethodfAnalysisofAluminumAluminumAlloysbySparkAtomicEmissionSpectrometry2.2OtherStards:4EN14242Aluminum
14、aluminumalloys–Chemicalanalysis–Inductivelycoupledplasmaopticalemissionspectralanalysis3.Terminology3.1FdefinitionsoftermsusedinthisStardrefertoTerminologiesE135B881.4.SummaryofPractice4.1Theproceduresdescribedinthisprac
15、ticeinvolvethecuttingdrillingofaluminumproductstoobtainsamplesf1ThispracticeisunderthejurisdictionofASTMCommitteeB07onLightMetalsAlloysisthedirectresponsibilityofSubcommitteeB07.05onTesting.CurrenteditionapprovedDec.1201
16、2.PublishedJanuary2013.DOI:10.1520B098512.2FreferencedASTMstardsvisittheASTMwebsitewww.astm.gcontactASTMCustomerServiceat.FAnnualBookofASTMStardsvolumeinfmationrefertothestard’sDocumentSummarypageontheASTMwebsite.3Thelas
17、tapprovedversionofthishisticalstardisreferencedonwww.astm.g.4AvailablefromEuropeanCommitteefStardizationCentralSecretariat(CEN)ruedeStassart36B1050BrusselsBelgium.:www.cen.euesearch.Copyright?ASTMInternational100BarrHarb
18、DrivePOBoxC700WestConshohockenPA194282959.UnitedStates1separately.Whenanalyzedseparatelythechemicalcompositionreptedshouldbetheaverageanalysisdeterminedfrommultipleremeltcastlabatysamplesfeachelementanalyzed.NOTE8—Remelt
19、ingisnotsatisfactyfthedeterminationofcalciumlithiumsodiumstrontium.Theseelementsmaybelostduetooxidationvolatilization.CalciumlithiumsodiumstrontiumshouldbeanalyzedaccdingtoE34EN14242bydirectanalysisonthesurfaceoftheigina
20、lpieceaccdingtoE1251E607resultsreptedasapproximate.NOTE9—Becausemagnesiumzincmaybelostifthemeltisoverheatedkeptmoltenfanexcessivetimethesampleshouldbecastassoonaspossibleafteritreachesatemperatureof700C.6.2.4Usingasawequ
21、ippedwithacarbidediamondtippedbladeshouldprovidesatisfactysamples.NOTE10—Theuseofbaresteelsawbladesmaycontaminatethesamplewithiron.6.2.4.1Cleaning—Oilgreasemayberemovedfromthesamplesbyrinsingwithalcoholthendryingbefetaki
22、ngthelabatysample.Scaledirtmayberemovedbywashingwithsoapwaterthenrinsingwithdistilleddeionizedwaterdryingbefetakingthelabatysample.Additionalchemicalcleaningsuchassoakingthesamplesin1%(byvolume)nitricacidmaybenecessaryto
23、removeembeddedcontaminates.Othercleaningmethodsmaybeusedprovidedtheydonotalterthechemicalcompositioninanyway.(Warning—Chipsothercutsamplesmustbedrybefemelting.Moisturecapturedinthematerialmaycauseittoejectheatedmetalmolt
24、enmaterialcauseinjury!)7.ProcedurefObtainingSamplesbyProductType7.1IngotsBilletsRound:7.1.1SamplingaRoundIngotbyDrilling—Pritodrillingmetalmustberemovedcroppedfromtheheadbuttofroundingots.Fingots250mm[10in.]lessindiamete
25、rremovecropatleast1.5timesthediameterfromtheheadbuttoftheingot.Fingotsgreaterthan250mm[10in.]indiameterremovecropatleast380mm[15in.]fromtheheadbuttoftheingot.7.1.1.1Drillholesinboththefrontrearoftheingotasdescribedbelows
26、howninFig.1.7.1.1.2Drilltwoholesneartheouteredgeapproximately5mm[0.2in.]awayfromtheascastsurface.7.1.1.3Drilloneholenearthecenter.7.1.1.4Drillthreeholesintheregionapproximatelywaybetweentheholesattheouteredgethecenter.7.
27、1.1.5Drillholesatleast25mm[1in.]intotheface.Drillingsfromthefrontrearoftheingotshallbetreatedasseparatelabatysamplesanalyzedseparately.Theresultsmaybereptedasindividualsamplesastheaverage.Bothsampleshowevermustbewithinth
28、especificationchemicalcompositionlimits.Thepiecesampleddoesnotmeetthespecificationchemicalcompositionlimitsifoneofthesamplesisoutsideofthechemicalcompositionlimitseveniftheaverageiswithinthespecification.7.1.1.6Ifmedrill
29、inglocationsarerequiredtomakeuptherequiredsampleweightrepeattheabovepattern.DrillingsfromadditionallocationsaretobecombinedwiththeotherdrillingsfromtheheadbuttlocationsshowninFig.1.7.1.2SamplingaBilletbyDrilling—Drillhol
30、esinboththefrontrearofthebilletasdescribedbelowshowninFig.1.7.1.2.1Drilltwoholesneartheouteredgeapproximately5mm[0.2in.]awayfromtheascastsurface.7.1.2.2Drilloneholenearthecenter.7.1.2.3Drillthreeholesintheregionapproxima
31、telywaybetweentheholesattheouteredgethecenter.7.1.2.4Drillholesatleast25mm[1in.]intotheface.Drillingsfromthefrontrearshallbetreatedasseparatelabatysamplesanalyzedseparately.Theresultsmaybereptedasindividualsamplesastheav
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