Anodizing of aluminium and its alloys - Method to test the surface abrasion resistance using glass-coated abrasive paper (ISO 18771:2019)

This document specifies a method for the determination of the surface abrasion resistance of anodic oxidation coatings produced by sulfuric acid anodizing of aluminium and its alloys. It is mainly intended for the evaluation of external architectural coatings. It is a production control method that relies to a large extent on operator experience and instruction.

Anodisieren von Aluminium und seinen Legierungen - Verfahren zur Prüfung der Oberflächenabriebfestigkeit mit glasbeschichtetem Schleifpapier (ISO 18771:2019)

Anodisation de l'aluminium et de ses alliages - Méthode de détermination de la résistance à l'usure d'une surface à l'aide de papier abrasif recouvert de verre (ISO 18771:2019)

Le présent document spécifie une méthode de détermination de la résistance à l'usure d'une couche d'oxydation anodique produite par anodisation à l'acide sulfurique de l'aluminium et de ses alliages. Il s'applique essentiellement à l'évaluation de couches architecturales externes. C'est une méthode de contrôle de production qui s'appuie largement sur l'expérience et les connaissances de l'opérateur.

Anodizacija aluminija in aluminijevih zlitin - Metoda preskušanja odpornosti proti obrabi površine z brusnim papirjem z nanosom stekla (ISO 18771:2019)

General Information

Status
Published
Public Enquiry End Date
04-Sep-2020
Publication Date
04-Oct-2020
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
24-Sep-2020
Due Date
29-Nov-2020
Completion Date
05-Oct-2020

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SLOVENSKI STANDARD
SIST EN ISO 18771:2020
01-november-2020

Anodizacija aluminija in aluminijevih zlitin - Metoda preskušanja odpornosti proti

obrabi površine z brusnim papirjem z nanosom stekla (ISO 18771:2019)

Anodizing of aluminium and its alloys - Method to test the surface abrasion resistance

using glass-coated abrasive paper (ISO 18771:2019)
Anodisieren von Aluminium und seinen Legierungen - Verfahren zur Prüfung der
Oberflächenabriebfestigkeit mit glasbeschichtetem Schleifpapier (ISO 18771:2019)
Ta slovenski standard je istoveten z: EN ISO 18771:2020
ICS:
25.220.20 Površinska obdelava Surface treatment
77.120.10 Aluminij in aluminijeve zlitine Aluminium and aluminium
alloys
SIST EN ISO 18771:2020 en,fr,de

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

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SIST EN ISO 18771:2020
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SIST EN ISO 18771:2020
EN ISO 18771
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2020
EUROPÄISCHE NORM
ICS 25.220.20
English Version
Anodizing of aluminium and its alloys - Method to test the
surface abrasion resistance using glass-coated abrasive
paper (ISO 18771:2019)
Anodisieren von Aluminium und seinen Legierungen -
Verfahren zur Prüfung der Oberflächenabriebfestigkeit
mit glasbeschichtetem Schleifpapier (ISO 18771:2019)
This European Standard was approved by CEN on 24 August 2020.

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

Poland, Portugal, Republic of North Macedonia, 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

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 18771:2020 E

worldwide for CEN national Members.
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SIST EN ISO 18771:2020
EN ISO 18771:2020 (E)
Contents Page

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

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SIST EN ISO 18771:2020
EN ISO 18771:2020 (E)
European foreword

The text of ISO 18771:2019 has been prepared by Technical Committee ISO/TC 79 "Light metals and

their alloys” of the International Organization for Standardization (ISO) and has been taken over as

EN ISO 18771:2020 by 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 March 2021, and conflicting national standards shall

be withdrawn at the latest by March 2021.

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.

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, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
Endorsement notice

The text of ISO 18771:2019 has been approved by CEN as EN ISO 18771:2020 without any modification.

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SIST EN ISO 18771:2020
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SIST EN ISO 18771:2020
INTERNATIONAL ISO
STANDARD 18771
First edition
2019-02
Anodizing of aluminium and its
alloys — Method to test the surface
abrasion resistance using glass-coated
abrasive paper
Reference number
ISO 18771:2019(E)
ISO 2019
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SIST EN ISO 18771:2020
ISO 18771:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019

All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
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SIST EN ISO 18771:2020
ISO 18771:2019(E)
Contents Page

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

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

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

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

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

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

5 Apparatus ..................................................................................................................................................................................................................... 2

6 Procedure..................................................................................................................................................................................................................... 2

6.1 Test specimen ........................................................................................................................................................................................... 2

6.2 Method 1....................................................................................................................................................................................................... 2

6.3 Method 2....................................................................................................................................................................................................... 3

7 Test report ................................................................................................................................................................................................................... 3

Annex A (normative) Method of validating glass-coated abrasive paper used for the surface

abrasion test by applying tests with standard specimens of anodized aluminium ........................5

Bibliography ................................................................................................................................................................................................................................ 8

© ISO 2019 – All rights reserved iii
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SIST EN ISO 18771:2020
ISO 18771:2019(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).

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

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO’s adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso

.org/iso/foreword .html.

This document was prepared by Technical Committee ISO/TC 79, Light metals and their alloys,

Subcommittee SC 2, Organic and anodic oxidation coatings on aluminium.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2019 – All rights reserved
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SIST EN ISO 18771:2020
ISO 18771:2019(E)
Introduction

Surface abrasion resistance is a valid method of assessing the weathering resistance of an anodic

oxidation coating. The higher the anodizing electrolyte concentration and temperature and the longer

the immersion time in the electrolyte, the lower will be the abrasion resistance of the coating. In

general, the lower the abrasion resistance the more likely the coating is to develop chalking in service.

Whole articles can be used for this test and, for those passing the test, it is non-destructive.

© ISO 2019 – All rights reserved v
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SIST EN ISO 18771:2020
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SIST EN ISO 18771:2020
INTERNATIONAL STANDAR
...

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