SIST EN ISO 18771:2020

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
• ICS: 25.220.20 - Surface treatment
• ICS: 77.120.10 - Aluminium and aluminium alloys
• Technical Committee: INEK - Nonferrous metals
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 24-Sep-2020
• Due Date: 29-Nov-2020
• Completion Date: 05-Oct-2020
• Ref Project: EN ISO 18771:2020 - Anodizing of aluminium and its alloys - Method to test the surface abrasion resistance using glass-coated abrasive paper (ISO 18771:2019)

Standards Content (Sample)

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

2

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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.

3

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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: [phone]
Fax: [phone]
Email: [e-mail]
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
...

SLOVENSKI STANDARD
oSIST prEN ISO 18771:2020
01-september-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: prEN ISO 18771
ICS:
25.220.20 Površinska obdelava Surface treatment
77.120.10 Aluminij in aluminijeve zlitine Aluminium and aluminium
alloys
oSIST prEN ISO 18771:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 18771:2020

---------------------- Page: 2 ----------------------
oSIST prEN 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

---------------------- Page: 3 ----------------------
oSIST prEN 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: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

---------------------- Page: 4 ----------------------
oSIST prEN 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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oSIST prEN 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

---------------------- Page: 6 ----------------------
oSIST prEN 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

---------------------- Page: 7 ----------------------
oSIST prEN ISO 18771:2020

---------------------- Page: 8 ----------------------
oSIST prEN ISO 18771:2020
INTERNATIONAL STANDARD ISO 18771:2019(E)
Anodizing of aluminium and its alloys — Method to
test the surface abrasion resistance using glass-coated
abrasive paper
1 Scope
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.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 48-2, Rubber, vulcanized or thermoplastic — Determination of hardness — Part 2: Hardness between
10 IRHD and 100 IRHD
ISO 2143, Anodizing of aluminium and its alloys — Estimation of loss of absorptive power of anodic
oxidation coatings after sealing — Dye-spot test with prior acid treatment
ISO 2360, Non-conductive coatings on non-magnetic electrically conductive base metals — Measurement
of coating thickness — Amplitude-sensitive eddy-current method
ISO 3210, Anodizing of aluminium and its alloys — Assessment of quality of sealed anodic oxidation coatings
by measurement of the loss of mass after immersion in acid solution(s)
ISO 7583, Anodizing of aluminium and its alloys — Terms and definitions
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 7583 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
3.1
block
resilient suppor
...