EN 12476磷化处理 中英文版

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1、DEUTSCHENORMOctober2001Phosphateconversioncoatingsofmetals{MethodofspecifyingrequirementsEnglishversionofDINEN12476EN12476ICS25.220.99SupersedesDINEN12476,July2000edition,andDIN50942,SeptemberPhosphatierüberzügeaufMetallen–VerfahrenfürdieFestlegungvon1996edition.AnforderungenEuropeanStanda

2、rdEN12476:2000hasthestatusofaDINStandard.Acommaisusedasthedecimalmarker.NationalforewordThisstandardhasbeenpreparedbyCEN/TC262‘Metallicandotherorganiccoatings’(Secretariat:UnitedKingdom).TheresponsibleGermanbodyinvolvedinitspreparationwastheNormenausschussMaterialprüfung(Ma-terialsTestingS

3、tandardsCommittee),TechnicalCommitteeChemischeundelektrochemischeÜberzüge.Thecommitteedecidedtoretainthespecificationsofsubclause7.2(cf.clausesNA.1toNA.5)andoftables7and8(cf.tablesNA.1andNA.2)ofDIN50942byintroducingtheminthenationalannexbelow.DINENISO3892isthestandardcorrespondingtoEuropea

4、nStandardENISO3892referredtoinclause2oftheEN.AmendmentsThisstandarddiffersfromtheDINEN12476,July2000edition,andDIN50942,September1996edition,inthatanationalannexhasbeenintroduced.PreviouseditionsDIN50942:1955-01,1973-11,1987-05,1996-09;DINEN12476:2000-07.NationalAnnexNAStandardreferredto(a

5、ndnotincludedinNormativereferencesandBibliography)DINENISO3892Conversioncoatingsonmetallicmaterials–Determinationofcoatingmassperunitareawithgravimetricmethods(ISO3892:1980)Continuedonpages2and3.ENcomprises12pages.©NopartofthisstandardmaybereproducedwithoutthepriorpermissionofRef.No.DINEN1

6、2476:2001-10DINDeutschesInstitutfürNormunge.V.,Berlin.BeuthVerlagGmbH,10772Berlin,Germany,Englishpricegroup09SalesNo.1109hastheexclusiverightofsaleforGermanStandards(DIN-Normen).02.02Page2DINEN12476:2001-10NotesontheuseofthisstandardNA.1ChemicalcompositionofcoatingInadditiontothemethodsspe

7、cifiedinthisannex,otheranalyticalmethodswithatleastthesameprecisionmaybeused.Thedetectionofphosphateinacoatingshallbetakenasproofthatitisaphosphatecoating(cf.subclauseNA.2).Toestablishthatacoatingisamanganesephosphatecoating,itissufficienttoestablishthepresenc