Anodizing of aluminium and its alloys - Assessment of quality of sealed anodic oxidation coatings by measurement of admittance (ISO 2931:2017)

ISO 2931:2017 specifies a method for assessing the quality of sealed anodic oxidation coatings on aluminium and its alloys by measurement of the admittance.
The method is applicable to anodic oxidation coatings sealed in an aqueous medium.
NOTE 1    Results obtained from anodic oxidation coatings sealed by different methods, e.g. hydrothermal sealing and cold sealing, are not necessarily comparable.
NOTE 2    Results obtained from anodic oxidation coatings on alloys containing more than 2 % silicon or 5 % manganese or 3 % magnesium are not comparable with results obtained from anodic oxidation coatings on more dilute alloys.
The method is suitable for use as a production-control test and as an acceptance test where there is agreement between the anodizer and the customer.
Any type of anodized component can be tested by the method described, provided that there is a sufficient area (a circle of diameter about 20 mm) and that the film thickness is greater than 3 µm.

Anodisieren von Aluminium und Aluminiumlegierungen - Prüfung der Qualität von verdichteten, anodisch erzeugten Oxidschichten durch Messung des Scheinleitwertes (ISO 2931:2017)

Dieses Dokument legt ein Verfahren zur Prüfung der Qualität von verdichteten, anodisch erzeugten Oxidschichten auf Aluminium und Aluminiumlegierungen durch Messung des Scheinleitwertes fest.
Das Verfahren ist auf anodisch erzeugte Oxidschichten anwendbar, die in einer wässrigen Lösung verdichtet wurden.
ANMERKUNG 1   Ergebnisse, die für anodisch erzeugte Oxidschichten erzielt wurden, welche mit unterschiedlichen Verfahren (z. B. hydrothermales Verdichten und Kaltimprägnieren) verdichtet wurden, sind nicht zwangsweise vergleichbar.
ANMERKUNG 2   Ergebnisse, die für anodisch erzeugte Oxidschichten auf Legierungen erzielt wurden, die mehr als 2 % Silicon oder 5 % Mangan oder 3 % Magnesium enthalten, sind nicht vergleichbar mit den Ergebnissen, die für anodisch erzeugte Oxidschicht auf stärker verdünnten Legierungen erzielt wurden.
Das Verfahren ist zur innerbetrieblichen Produktionsüberwachung geeignet und nach Vereinbarung zwischen dem das Anodisationsverfahren durchführenden Unternehmen und dem Besteller auch für Abnahmeprüfungen anwendbar.
Alle Arten von anodisierten Gegenständen können nach dem beschriebenen Verfahren geprüft werden, vorausgesetzt es gibt eine ausreichend große Messfläche (Kreis mit etwa 20 mm Durchmesser) und die Schichtdicke ist größer als 3 μm.

Anodisation de l'aluminium et de ses alliages - Évaluation de la qualité des couches anodiques colmatées par mesurage de l'admittance (ISO 2931:2017)

ISO 2931:2017 spécifie une méthode d'évaluation de la qualité des couches anodiques colmatées formées sur de l'aluminium ou des alliages d'aluminium, par mesurage de l'admittance.
Cette méthode est applicable aux couches anodiques colmatées en milieu aqueux.
NOTE 1    Les résultats obtenus sur des couches anodiques colmatées par des méthodes différentes, par exemple par colmatage hydrothermique ou par colmatage à froid, ne sont pas nécessairement comparables.
NOTE 2    Les résultats obtenus sur des couches anodiques formées sur des alliages contenant plus de 2 % de silicium ou plus de 5 % de manganèse ou plus de 3 % de magnésium ne sont pas comparables aux résultats obtenus sur des couches anodiques formées sur des alliages dans lesquels ces concentrations sont inférieures.
Cette méthode peut être utilisée pour les contrôles de la production et pour les contrôles de réception lorsqu'un accord a été conclu entre l'anodiseur et le client.
Des produits anodisés de tout type peuvent être soumis à essai selon la méthode décrite pour autant que leur surface soit suffisante (un cercle d'environ 20 mm de diamètre) et que l'épaisseur de la couche soit supérieure à 3 μm.

Anodizacija aluminija in njegovih zlitin - Ocenjevanje kakovosti tesnjenih anodno oksidiranih prevlek z meritvijo admitance (ISO 2931:2017)

Ta dokument določa metodo za ocenjevanje kakovosti tesnjenih anodno oksidiranih prevlek na aluminiju in aluminijevih zlitinah z meritvijo admitance.
Metoda se uporablja za anodno oksidirane prevleke, zatesnjene v vodnem mediju.
OPOMBA 1: Rezultati, pridobljeni iz anodno oksidiranih prevlek, zatesnjenih z različnimi metodami, kot sta hidrotermalna
in hladna zatesnitev, niso nujno primerljivi.
OPOMBA 2: Rezultati, pridobljeni iz anodno oksidiranih prevlek na zlitinah, ki vsebujejo več kot 2 % silicija ali 5 %
mangana ali 3 % magnezija, niso primerljivi z rezultati, pridobljenimi iz anodno oksidiranih prevlek na bolj razredčenih zlitinah.
Metoda je primerna kot kontrolni preskus proizvoda in kot preskus sprejemljivosti, če je tak dogovor med izvajalcem eloksacije in stranko.
Vse vrste anodiziranih komponent je mogoče preskusiti z opisano metodo pod pogojem, da je
površina dovolj velika (krog s premerom približno 20 mm) in da je debelina premaza najmanj 3 μm.

General Information

Status
Published
Publication Date
06-Feb-2018
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
07-Feb-2018
Completion Date
07-Feb-2018

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SLOVENSKI STANDARD
SIST EN ISO 2931:2018
01-april-2018
1DGRPHãþD
SIST EN ISO 2931:2010

Anodizacija aluminija in njegovih zlitin - Ocenjevanje kakovosti tesnjenih anodno

oksidiranih prevlek z meritvijo admitance (ISO 2931:2017)

Anodizing of aluminium and its alloys - Assessment of quality of sealed anodic oxidation

coatings by measurement of admittance (ISO 2931:2017)
Anodisieren von Aluminium und Aluminiumlegierungen - Prüfung der Qualität von

verdichteten, anodisch erzeugten Oxidschichten durch Messung des Scheinleitwertes

(ISO 2931:2017)

Anodisation de l'aluminium et de ses alliages - Évaluation de la qualité des couches

anodiques colmatées par mesurage de l'admittance (ISO 2931:2017)
Ta slovenski standard je istoveten z: EN ISO 2931:2018
ICS:
25.220.20 Površinska obdelava Surface treatment
77.120.10 Aluminij in aluminijeve zlitine Aluminium and aluminium
alloys
SIST EN ISO 2931:2018 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 2931:2018
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SIST EN ISO 2931:2018
EN ISO 2931
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2018
EUROPÄISCHE NORM
ICS 25.220.20 Supersedes EN ISO 2931:2010
English Version
Anodizing of aluminium and its alloys - Assessment of
quality of sealed anodic oxidation coatings by
measurement of admittance (ISO 2931:2017)
Anodisation de l'aluminium et de ses alliages - Anodisieren von Aluminium und

Évaluation de la qualité des couches anodiques Aluminiumlegierungen - Prüfung der Qualität von

colmatées par mesurage de l'admittance (ISO verdichteten, anodisch erzeugten Oxidschichten durch

2931:2017) Messung des Scheinleitwertes (ISO 2931:2017)
This European Standard was approved by CEN on 1 December 2017.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC 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

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 2931:2018 E

worldwide for CEN national Members.
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SIST EN ISO 2931:2018
EN ISO 2931:2018 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 2931:2018
EN ISO 2931:2018 (E)
European foreword

This document (EN ISO 2931:2018) has been prepared by Technical Committee ISO/TC 79 "Light

metals and their alloys" in collaboration with Technical Committee CEN/TC 132 “Aluminium and

aluminium alloys”, the secretariat of which is held by AFNOR.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by August 2018, and conflicting national standards shall

be withdrawn at the latest by August 2018.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN ISO 2931:2010.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
Endorsement notice

The text of ISO 2931:2017 has been approved by CEN as EN ISO 2931:2018 without any modification.

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SIST EN ISO 2931:2018
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SIST EN ISO 2931:2018
INTERNATIONAL ISO
STANDARD 2931
Fourth edition
2017-11
Anodizing of aluminium and its
alloys — Assessment of quality of
sealed anodic oxidation coatings by
measurement of admittance
Anodisation de l'aluminium et de ses alliages — Évaluation de
la qualité des couches anodiques colmatées par mesurage de
l'admittance
Reference number
ISO 2931:2017(E)
ISO 2017
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SIST EN ISO 2931:2018
ISO 2931:2017(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior

written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of

the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved
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SIST EN ISO 2931:2018
ISO 2931:2017(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 2

5 Apparatus and materials.............................................................................................................................................................................. 2

6 Test specimen .......................................................................................................................................................................................................... 3

6.1 Sampling ....................................................................................................................................................................................................... 3

6.2 Treatment before testing ................................................................................................................................................................ 3

7 Procedure..................................................................................................................................................................................................................... 3

8 Expression of results ........................................................................................................................................................................................ 4

9 Test report ................................................................................................................................................................................................................... 4

Bibliography ................................................................................................................................................................................................................................ 5

© ISO 2017 – All rights reserved iii
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SIST EN ISO 2931:2018
ISO 2931:2017(E)
Foreword

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