EN 12373-19:2001
(Main)Aluminium and aluminium alloys - Anodizing - Part 19: Rating system for the evaluation of pitting corrosion - Grid method
Aluminium and aluminium alloys - Anodizing - Part 19: Rating system for the evaluation of pitting corrosion - Grid method
This part of this European Standard specifies a grid rating system that provides a means of defining levels of performance of anodic oxidation coatings on aluminium and its alloys that have been subjected to corrosion tests. This rating system is applicable to pitting corrosion resulting from - accelerated tests; - exposure to corrosive environments; - practical service tests.
Aluminium und Aluminiumlegierungen - Anodisieren - Teil 19: Bewertungssystem für Lochkorrosion - Rasterzählmethode
Anwendungsbereich
Dieser Teil dieser Europäischen Norm legt ein Rasterbewertungssystem fest, das es ermöglicht, die
Gebrauchstauglichkeit von anodisch erzeugten Oxidschichten auf Aluminium und Aluminiumlegierungen
zu bestimmen, die Korrosionsprüfungen unterworfen wurden.
Das Bewertungssystem ist auf Lochkorrosion anwendbar, die auftritt nach
- Schnellkorrosionsversuchen;
- Bewitterung durch korrosive Umgebungen;
- praktischen Gebrauchsprüfungen.
Es wird nur die Lochkorrosion des Grundmetalls berücksichtigt, die aus der Durchdringung der anodisch
erzeugten Oxidschicht resultiert.
ANMERKUNG 1 Eine vergleichbare Norm, EN 12373-18:2001, beschreibt ein ähnliches Bewertungssystem auf
Basis der Richtreihenmethode.
ANMERKUNG 2 Dieses System dient häufig zur Bewertung der Ergebnisse von Schnellkorrosionsprüfungen an
relativ dünnen anodisch erzeugten Schichten, die in der Kraftfahrzeugindustrie angewendet werden.
Aluminium et alliages d'aluminium - Anodisation - Partie 19: Système de cotation de la corrosion par piqûres - Méthode par quadrillage
Domaine d'application
Cette partie de la présente Norme européenne établit un système de cotation par quadrillage qui permet de définir des niveaux de performance de couches anodiques déposées sur l'aluminium et ses alliages, soumises à des essais de corrosion.
Ce système de cotation s'applique à la corrosion par piqûres résultant :
¾ d'essais accélérés ;
¾ de l'exposition à des milieux corrosifs ;
¾ d'essais pratiques en service.
Elle ne tient compte que de la corrosion par piqûres résultant de la pénétration de la couche anodique de protection.
NOTE 1 Une norme associée, EN 12373-18, décrit un système de cotation identique fondé sur les images-types.
NOTE 2 Ce système est fréquemment utilisé pour la classification de résultats d'essais de corrosion de courte durée, effectués sur des couches anodiques fines, telles que celles utilisées dans l'industrie automobile.
Aluminij in aluminijeve zlitine - Anodizacija - 19. del: Ocenjevalni sistem za ovrednotenje jamičaste korozije - Rasterska metoda
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aluminium und Aluminiumlegierungen - Anodisieren - Teil 19: Bewertungssystem für Lochkorrosion - RasterzählmethodeAluminium et alliages d'aluminium - Anodisation - Partie 19: Systeme de cotation de la corrosion par piqures - Méthode par quadrillageAluminium and aluminium alloys - Anodizing - Part 19: Rating system for the evaluation of pitting corrosion - Grid method77.120.10Aluminij in aluminijeve zlitineAluminium and aluminium alloys25.220.20Površinska obdelavaSurface treatmentICS:Ta slovenski standard je istoveten z:EN 12373-19:2001SIST EN 12373-19:2002en01-februar-2002SIST EN 12373-19:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12373-19May 2001ICS 25.220.20; 77.120.10English versionAluminium and aluminium alloys - Anodizing - Part 19: Ratingsystem for the evaluation of pitting corrosion - Grid methodAluminium et alliages d'aluminium - Anodisation - Partie 19:Système de cotation de la corrosion par piqûres - Méthodepar quadrillageAluminium und Aluminiumlegierungen - Anodisieren - Teil19: Bewertungssystem für Lochkorrosion -RasterzählmethodeThis European Standard was approved by CEN on 20 April 2001.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12373-19:2001 ESIST EN 12373-19:2002
Page 2EN 12373-19:2001ContentsPageForeword31Scope52Terms and definitions53Procedure for rating64Expression of results
75Test report7BibliographySIST EN 12373-19:2002
Page 3EN 12373-19:2001ForewordThis European Standard has been prepared by Technical Committee CEN/TC 132 "Aluminiumand aluminium alloys" the secretariat of which is held by AFNOR.This European Standard shall be given the status of a national standard, either by publicationof an identical text or by endorsement, at the latest by November 2001, and conflictingnational standards shall be withdrawn at the latest by November 2001.It is based on ISO 8994 : 1989.EN 12373, Aluminium and aluminium alloys — Anodizing, comprises the following parts:Part 1:Method for specifying decorative and protective anodic oxidation coatings onaluminiumPart 2:Determination of mass per unit area (surface density) of anodic oxidationcoatings – Gravimetric methodPart 3:Determination of thickness of anodic oxidation coatings – Non-destructivemeasurement by split beam microscopePart 4:Estimation of loss of absorptive power of anodic oxidation coatings aftersealing by dye spot test with prior acid treatmentPart 5:Assessment of quality of sealed anodic oxidation coatings by measurement ofadmittancePart 6:Assessment of quality of sealed anodic oxidation coatings by measurement of theloss in mass after immersion in phosphoric acid/chromic acid solution withoutprior acid treatmentPart 7:Assessment of quality of sealed anodic oxidation coatings by measurement of theloss in mass after immersion in phosphoric acid/chromic acid solution with prioracid treatmentPart 8:Determination of the comparative fastness to ultra-violet light and heat ofcoloured anodic oxidation coatingsPart 9:Measurement of wear resistance and wear index of anodic oxidation coatingsusing an abrasive wheel wear test apparatusPart 10:Measurement of mean specific abrasion resistance of anodic oxidation coatingsusing an abrasive jet test apparatusPart 11:Measurement of specular reflectance and specular gloss of anodic oxidationcoatings at angles of 20, 45, 60 or 85SIST EN 12373-19:2002
Page 4EN 12373-19:2001Part 12:Measurement of reflectance characteristics of aluminium surfaces usingintegrating-sphere instrumentsPart 13:Measurement of reflectivity characteristics of aluminium surfaces using agoniophotometer or an abridged goniophotometerPart 14:Visual determination of image clarity of anodic oxidation coatings – Chart scalemethodPart 15:Assessment of resistance of anodic oxidation coatings to cracking by deformationPart
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