AMS2700E

__________________________________________________________________________________________________________________________________________SAETechnicalStandardsBoardRulesprovidethat:“ThisreportispublishedbySAEtoadvancethestateoftechnicalandengineeringsciences.Theuseofthisreportisentirelyvoluntary,anditsapplicabilityandsuitabilityforanyparticularuse,includinganypatentinfringementarisingtherefrom,isthesoleresponsibilityoftheuser.”SAEreviewseachtechnicalreportatleasteveryfiveyearsatwhichtimeitmaybereaffirmed,revised,orcancelled.SAEinvitesyourwrittencommentsandsuggestions.Copyright©2011SAEInternationalAllrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystemortransmitted,inanyformorbyanymeans,electronic,mechanical,photocopying,recording,orotherwise,withoutthepriorwrittenpermissionofSAE.TOPLACEADOCUMENTORDER:Tel:[phone](insideUSAandCanada)Tel:[phone](outsideUSA)Fax:[phone]Email:[e-mail]:://:Method1-PassivationinNitricAcidMethod2-PassivationinCitricAcidMethod1shallbeusedunlessMethod2isauthorizedbythecognizantengineeringorganization.1.3.2TypesThefollowingtypesmaybespecifiedforMethod1:Type1LowTemperatureNitricAcidwithSodiumDichromateType2MediumTemperatureNitricAcidwithSodiumDichromateType3HighTemperatureNitricAcidwithSodiumDichromateType440%NitricAcidforFreeMachiningSteelsSAEAMS2700EPage2of17Type5Anodic,forHighCarbonMartensiticSteelsType6LowTemperatureNitricAcidType7MediumTemperatureNitricAcidType8MediumTemperature,HighNitricAcidConcentrationWherenotypeisspecified,theprocessormayuseanyofthelistedtypesthatmeettherequirementsgivenherein.1.3.3ClassesPassivationverificationclassesareasfollows:1.3.3.1Class1Thefollowingtypesofpartsshallbeselectedfortestinginaccordancewith4.3.1.1.3.3.1.1Fasteners,includingnuts,bolts,washers,rivetsandrelatedhardwarewhereatestfrequencyisnotdefinedintheprocurementdocuments.1.3.3.1.2StandardpartsdefinedbydrawingslabeledAN,MS,NASorsimilarwherefrequencyoftestisnototherwisedefined.1.3.3.1.3Whenspecifiedbypurchaser.1.3.3.2Class2Frequencyofcorrosiontestingshallbeonepartperlot.1.3.3.3Class3Frequencyoftestingshallbeonaperiodicbasis.1.3.3.4Class4PartsforwhichAMS-QQ-P-35orQQ-P-35isspecifiedshallbeacceptancetestedinaccordancewith4.3.4.1.3.3.5Whennoclassisspecifiedandneither1.3.3.1nor1.3.3.4apply,class2shallapply.1.4Safety-HazardousMaterialsWhilethematerials,methods,applications,andprocessesdescribedorreferencedinthisspecificationmayinvolvetheuseofhazardousmaterials,thisspecificationdoesnotaddressthehazardswhichmaybeinvolvedinsuchuse.Itisthesoleresponsibilityoftheusertoensurefamiliaritywiththesafeandproperuseofanyhazardousmaterialsandtotakenecessaryprecautionarymeasurestoensurethehealthandsafetyofallpersonnelinvolved.2.APPLICABLEDOCUMENTSTheissueofthefollowingdocumentsineffectonthedateofthepurchaseorderformsapartofthisspecificationtotheextentspecifiedherein.Thesuppliermayworktoasubsequentrevisionofadocumentunlessaspecificdocumentissueisspecified.Whenthereferenceddocumenthasbeencancelledandnosupersedingdocumenthasbeenspecified,thelastpublishedissueofthatdocumentshallapply.SAEAMS2700EPage3of172.1SAEPublicationsAvailablefromSAEInternational,400CommonwealthDrive,Warrendale,PA15096-0001,Tel:[phone](insideUSAandCanada)or724-776-4970(outsideUSA),:610-832-9585,(Fog)TestingApparatusASTMD1193ReagentWater3.REQUIREMENTS3.1Procedure3.1.1Passivationshallbeperformedonlyonsurfacesfreefromwaterbreaksandvisiblerustorscale.See8.8.3.1.2Method1-PassivationinNitricAcid3.1.2.1PassivationshallbeaccomplishedbyimmersioninabathinaccordancewithTable1.Whenpermittedbythecognizantengineeringorganization,othernitricacidsolutionsmaybeused.See8.13.3.1.2.2Whenaspecificpassivationtypeisnotspecified,Table4maybeconsultedforrecommendedtypes.SAEAMS2700EPage4of17TABLE1-METHOD1PASSIVATIONTYPESTypeFeatureV