【astm標準】d 4417 - 14

1、Designation:D4417?14StardTestMethodsfFieldMeasurementofSurfaceProfileofBlastCleanedSteel1ThisstardisissuedunderthefixeddesignationD4417thenumberimmediatelyfollowingthedesignationindicatestheyearofiginaladoptioninthecaseo

2、frevisiontheyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperepsilon()indicatesaneditialchangesincethelastrevisionreapproval.ThisstardhasbeenapprovedfusebyagenciesoftheU.S.DepartmentofDefense

3、.1.Scope1.1Thesetestmethodscoverthedeionoftechniquesfmeasuringtheprofileofabrasiveblastcleanedsurfacesinthelabatyfieldinthefabricatingshop.Thereareadditionaltechniquessuitableflabatyusenotcoveredbythesetestmethods.1.2Met

4、hodBmayalsobeappropriatetothemeasurementofprofileproducedbyusingpowertools.1.3SSPCstardSSPCPA17providesadditionalguidancefdeterminingconfmancewithsurfaceprofilerequirements.1.4ThevaluesstatedinSIunitsaretoberegardedasthe

5、stard.Thevaluesgiveninparenthesesarefinfmationonly.1.5Thisstarddoesnotpurpttoaddressallofthesafetyconcernsifanyassociatedwithitsuse.Itistheresponsibilityofwhoeverusesthisstardtoconsultestablishappropriatesafetyhealthprac

6、ticesdeterminetheapplicabilityofregulatylimitationspritouse.2.ReferencedDocuments2.1ASTMStards:2D7127TestMethodfMeasurementofSurfaceRoughnessofAbrasiveBlastCleanedMetalSurfacesUsingaPtableStylusInstrumentE177PracticefUse

7、oftheTermsPrecisionBiasinASTMTestMethodsE691PracticefConductinganInterlabatyStudytoDeterminethePrecisionofaTestMethod2.2SSPCStard:3SSPCPA17ProcedurefDeterminingConfmancetoSteelProfileSurfaceRoughnessPeakCountRequirements

8、3.SummaryofTestMethod3.1Themethodsare:3.1.1MethodA—Theblastedsurfaceisvisuallycomparedtostardspreparedwithvarioussurfaceprofiledepthstherangedetermined.3.1.2MethodB—Thedepthofprofileismeasuredusingafinepointedprobeatanum

9、beroflocationsthearithmeticmeanofthemaximumpeaktovalleydistancesisdetermined.3.1.3MethodC—Acompositeplastictapeisimpressedintotheblastcleanedsurfacefmingareverseimageoftheprofilethemaximumpeaktovalleydistancemeasuredwith

10、thicknessgagespecificallydesignedfusewiththereplicatapemethod.4.SignificanceUse4.1Theheightofsurfaceprofilehasbeenshowntobeafactintheperfmanceofvariouscoatingsappliedtosteel.Fthisreasonsurfaceprofileshouldbemeasuredprito

11、coatingapplicationtoensurethatitmeetsthatspecified.Theinstrumentsdescribedarereadilyptablesufficientlysturdyfuseinthefield.NOTE1—OpticalmicroscopemethodsserveasarefereemethodfsurfaceprofilemeasurementmethodsAB.Profiledep

12、thdesignationsarebasedontheconceptofmeanmaximumprofile(hmax)thisvalueisdeterminedbyaveragingagivennumber(usually20)ofthehighestpeaktolowestvalleymeasurementsmadeinthefieldofviewofastardmeasuringmicroscope.Thisisdonebecau

13、seofevidencethatcoatingsperfmanceinanyonesmallareaisprimarilyinfluencedbythehighestsurfacefeaturesinthatareanotbytheaverageroughness.45.Apparatus5.1MethodA—Aprofilecomparatconsistingofanumberofareas(eachapproximatelyones

14、quareinchinsize)usually1ThesetestmethodsareunderthejurisdictionofASTMCommitteeD01onPaintRelatedCoatingsMaterialsApplicationsarethedirectresponsibilityofSubcommitteeD01.46onIndustrialProtectiveCoatings.Currenteditionappro

15、vedJan.12014.PublishedMarch2014.iginallyapprovedin1984.Lastpreviouseditionapprovedin2011asD4417–11.DOI:10.1520D441714.2FreferencedASTMstardsvisittheASTMwebsitewww.astm.gcontactASTMCustomerServiceat.FAnnualBookofASTMStard

16、svolumeinfmationrefertothestard’sDocumentSummarypageontheASTMwebsite.3AvailablefromSocietyfProtectiveCoatings(SSPC)4024thSt.6thFloPittsburghPA152224656:www.sspc.g.4JohnD.KeaneJosephA.BrunoJr.RaymondE.F.Weaver“SurfaceProf

17、ilefAntiCrosionPaints”O(jiān)ct.251976SteelStructuresPaintingCouncil4400FifthAve.PittsburghPA15213.Copyright?ASTMInternational100BarrHarbDrivePOBoxC700WestConshohockenPA194282959.UnitedStates1rangebuttheseadditionalgradesshoul

18、donlybeusedtocheckmeasurementsneartheendsoftheprimaryrange.7.3.2Followmanufacturerinstructionstoobtainthefirst(oftwo)profilereadings.7.3.3Theaverageoftwo“readings”isa“profilemeasurement.”Manufacturerrecommendationsprovid

19、eguidanceonwhetherthesetworeadingsshouldbothbeobtainedwiththesametapegradetwodifferentgrades.8.Rept8.1Repttherangetheappropriateaverage(meanmode)ofthedeterminationsthenumberoflocationsmeasuredtheapproximatetotalareacover

20、ed.9.PrecisionBias9.1TestMethodA:9.1.1Applicability—Basedonmeasurementsofprofilesonsurfacesof8steelpanelseachblastcleanedwith1of8differentabrasivestoawhitemetaldegreeofcleaninghavingknownratingsofprofileheightrangingfrom

21、37m(1.5mils)to135m(5.4mils)thecrelationcoefficientfTestMethodAwasfoundtobe0.75thecoefficientofdeterminationwasfoundtobe0.54.9.1.2Precision—InaninterlabatystudyofTestMethodAinwhich2operatseachrunning2testsonseparatedaysin

22、eachof6labatiestested8surfaceswithabroadrangeofprofileacteristicslevelstheintralabatycoefficientofvariationwasfoundtobe20%with141dftheinterlabatycoefficientwasfoundtobe19%with40dfafterrejecting3resultsfonetimebecausether

23、angebetweenrepeatsdifferedsignificantlyfromallotherranges.Basedonthesecoefficientsthefollowingcriteriashouldbeusedfjudgingatthe95%confidenceleveltheacceptabilityofresults:9.1.2.1Repeatability—Tworesultseachthemeanoffourr

24、eplicatesobtainedbythesameoperatshouldbeconsideredsuspectiftheydifferbymethan56%.9.1.2.2Reproducibility—Tworesultseachthemeanoffourreplicatesobtainedbyoperatsindifferentlabatiesshouldbeconsideredsuspectiftheydifferbymeth

25、an54%.9.2TestMethodB:9.2.1Applicability—Basedonmeasurementsofprofilesonsurfacesof8steelpanelseachblastcleanedwith1of8differentabrasivestoawhitemetaldegreeofcleaninghavingknownratingsofprofileheightrangingfrom37m(1.5mils)

26、to135m(5.4mils)thecrelationcoefficientfTestMethodBwasfoundtobe0.99thecoefficientofdeterminationwasfoundtobe0.93.9.2.2Precision—InaninterlabatystudyofTestMethodBinwhich2operatseachrunning2testsonseparatedaysineachof5labat

27、iestested8surfaceswithabroadrangeofprofileacteristicslevelstheintralabatycoefficientofvariationwasfoundtobe19%with113dftheinterlabatycoefficientwasfoundtobe28%with32dfafterrejecting3resultsfonetimebecausetherangebetweenr

28、epeatsdifferedsignificantlyfromallotherranges.Basedonthesecoefficientsthefollowingcriteriashouldbeusedfjudgingatthe95%confidenceleveltheacceptabilityofresults:9.2.2.1Repeatability—Tworesultseachthemeanoffourreplicatesobt

29、ainedbythesameoperatshouldbeconsideredsuspectiftheydifferbymethan54%.9.2.2.2Reproducibility—Tworesultseachthemeanoffourreplicatesobtainedbyoperatsindifferentlabatiesshouldbeconsideredsuspectiftheydifferbymethan79%.9.3Met

30、hodC:9.3.1TheprecisionofTestMethodCisbasedonaintralabatystudyconductedin2011.Elevenlabatiesparticipatedinthisstudyanalyzingmaterialsrepresentingfivedifferentpropertytypes.Each“testresult”reptedrepresentsanindividualdeter

31、minationtheparticipatinglabsreptedthreereplicatetestresultsfeachmaterialtype.PracticeE691wasfollowedfthedesignanalysisofthedatathedetailsaregiveninASTMResearchRept:RR:D011177.6ValuesinTable1aretakenfromthefegoingrept.9.3

32、.2Thereproducibilitystarddeviation(SR)DocumentedinTable1feachoffivelevelsofprofileiskeytoassessingwhetheragivenmeasurementisstatisticallydifferentfromeitheranupperlowerprofilelimitestablishedinadvancebytheinterestedparti

33、es.9.3.3Theterm“reproducibilitystarddeviation”isusedasspecifiedinPracticeE177.9.3.4AmeasuredprofilethatiswithineitherlimitofaprespecifiedrangebyanamountequaltoSRhasa68%probabilityofsatisfyingspecification.Aprofilewithin1

34、.5SRofaspecifiedlimithasa86%probabilityofsatisfyingspecificationaprofilewithin2.0SRofaspecifiedlimithasa95%probabilityofsatisfyingthespecification.9.3.5Theprecisionstatementwasdeterminedthroughstatisticalexaminationof160

35、testresultsreptedbyelevenlabatiesonfivesurfacesofdifferingprofilecoveringtheapproximateprofilerangeof30to110m(1.2to4.4mils).Thefivesurfacesbetheinternalcontrolcodenumbers102114124124119.9.4Bias—Atthetimeofthisstudytherew

36、asnogenerallyacceptedreferencemethodsuitablefdeterminingthebiasfthistestmethodtherefenofmalstatementregardingbiasisbeingmade.6SupptingdatahavebeenfiledatASTMInternationalHeadquartersmaybeobtainedbyrequestingResearchReptR

37、R:D011177.ContactASTMCustomerServiceatE1ProfileMeasurementStatisticsCodedSurfaceIDNumberAverageReplicaTapeProfile(mils)ReplicaTapeReproducibilityStardDeviation(mils)SR1021.290.121142.650.231242.790.181213.750.151194.220.