SIST EN ISO 6581:2018
(Main)Anodizing of aluminium and its alloys - Determination of the comparative fastness to ultraviolet light and heat of coloured anodic oxidation coatings (ISO 6581:2018)
Anodizing of aluminium and its alloys - Determination of the comparative fastness to ultraviolet light and heat of coloured anodic oxidation coatings (ISO 6581:2018)
This document specifies a comparative method for the determination of the fastness of coloured anodic oxidation coatings to ultraviolet (UV) light and heat.
The method is not suitable for testing coloured anodic oxidation coatings that are heat sensitive.
NOTE Dark-coloured test specimens will normally reach the highest temperatures.
Anodisieren von Aluminium und Aluminiumlegierungen - Vergleichsbestimmung der Beständigkeit von gefärbten, anodisch erzeugten Oxidschichten gegen ultraviolettes Licht und Wärme (ISO 6581:2018)
Anodisation de l'aluminium et de ses alliages - Détermination de la solidité comparée à la lumière ultraviolette et à la chaleur des couches anodiques colorées (ISO 6581:2018)
Le présent document spécifie une méthode de détermination par comparaison de la solidité à la lumière ultraviolette (U.V.) et à la chaleur des couches anodiques colorées.
La méthode d'essai n'est pas appropriée pour les couches anodiques colorées qui sont sensibles à la chaleur.
NOTE Les éprouvettes d'essai de couleur foncée atteignent normalement les températures les plus élevées.
Anodizacija aluminija in aluminijevih zlitin - Primerjalno ugotavljanje obstojnosti barvnih anodno oksidiranih prevlek pri ultravijolični svetlobi in toploti (ISO 6581:2018)
Ta dokument določa primerjalno metodo za ugotavljanje obstojnosti barvnih anodno
oksidiranih prevlek pri ultravijolični (UV) svetlobi in toploti.
Metoda ni primerna za preskušanje barvnih anodno oksidiranih prevlek, občutljivih na toploto.
OPOMBA: Temni preskusni vzorci običajno dosežejo najvišje temperature.
General Information
Relations
Overview
EN ISO 6581:2018 specifies a comparative laboratory method for determining the fastness (resistance) of coloured anodic oxidation coatings on aluminium and its alloys to ultraviolet (UV) light and heat. The test exposes representative specimens to a medium‑pressure mercury arc lamp under controlled conditions and evaluates resulting colour change against standard specimens. The method is intended for comparative, rapid assessment and is not suitable for heat‑sensitive coloured anodic coatings.
Key topics and technical requirements
- Principle: Comparative exposure to a UV/heat source and visual or instrumental assessment of colour change.
- Apparatus: A heat‑resistant, fully enclosed cabinet with specimen holders at equal distances from the lamp; safety interlocks to prevent eye exposure.
- UV source: Medium‑pressure mercury arc lamp with a silica envelope (example: 400 W lamp, 150 mm effective arc length, placed ≈170 mm from specimens is cited). Lamp life and irradiance variation are noted (typ. ~1 000 h recommended life).
- Temperature control: Specimen surface temperature must not exceed 100 °C; cooling or forced air may be required but avoid over‑cooling the lamp.
- Ozone and ventilation: Some lamps produce ozone; if so, forced ventilation and ducting to outside are required to protect operators.
- Specimen preparation: Samples must be taken from a flat, representative surface (not edges). Standard specimen size is greater than 150 mm × 70 mm. When the product cannot be tested directly, representative specimens prepared under identical conditions may be used.
- Limitations: Not suitable for heat‑sensitive coatings; dark‑coloured specimens typically reach higher temperatures and require careful monitoring.
- Test control and reporting: The standard includes provisions for standard control specimens, evaluation, expression of results and required test report content.
Applications and who uses it
EN ISO 6581:2018 is used by:
- Anodizing and surface‑treatment laboratories for quality control and comparative durability testing of coloured anodic coatings.
- Manufacturers and contract anodizers to validate process consistency and product performance.
- Materials engineers, specifiers and compliance teams who need objective data on UV/heat fastness to inform product selection, warranties and specifications.
- Third‑party testing bodies that provide certification or comparative performance data.
Practical value: helps predict comparative colour stability under severe UV/heat exposure, supports process optimization, and provides data for product specifications and customer claims.
Related standards
- ISO 7583 - Terms and definitions for anodizing of aluminium and its alloys (normative reference).
- EN ISO 6581:2018 supersedes EN ISO 6581:2010 (update/addition of specimen information).
Frequently Asked Questions
SIST EN ISO 6581:2018 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Anodizing of aluminium and its alloys - Determination of the comparative fastness to ultraviolet light and heat of coloured anodic oxidation coatings (ISO 6581:2018)". This standard covers: This document specifies a comparative method for the determination of the fastness of coloured anodic oxidation coatings to ultraviolet (UV) light and heat. The method is not suitable for testing coloured anodic oxidation coatings that are heat sensitive. NOTE Dark-coloured test specimens will normally reach the highest temperatures.
This document specifies a comparative method for the determination of the fastness of coloured anodic oxidation coatings to ultraviolet (UV) light and heat. The method is not suitable for testing coloured anodic oxidation coatings that are heat sensitive. NOTE Dark-coloured test specimens will normally reach the highest temperatures.
SIST EN ISO 6581:2018 is classified under the following ICS (International Classification for Standards) categories: 25.220.20 - Surface treatment; 77.120.10 - Aluminium and aluminium alloys. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN ISO 6581:2018 has the following relationships with other standards: It is inter standard links to SIST EN ISO 6581:2010. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase SIST EN ISO 6581:2018 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
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Anodizing of aluminium and its alloys - Determination of the comparative fastness to
ultraviolet light and heat of coloured anodic oxidation coatings (ISO 6581:2018)
Anodisieren von Aluminium und Aluminiumlegierungen - Vergleichsbestimmung der
Beständigkeit von gefärbten, anodisch erzeugten Oxidschichten gegen ultraviolettes
Licht und Wärme (ISO 6581:2018)
Anodisation de l'aluminium et de ses alliages - Détermination de la solidité comparée à
la lumière ultraviolette et à la chaleur des couches anodiques colorées (ISO 6581:2018)
Ta slovenski standard je istoveten z: EN ISO 6581:2018
ICS:
25.220.20 Površinska obdelava Surface treatment
77.120.10 Aluminij in aluminijeve zlitine Aluminium and aluminium
alloys
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 6581
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2018
EUROPÄISCHE NORM
ICS 25.220.20 Supersedes EN ISO 6581:2010
English Version
Anodizing of aluminium and its alloys - Determination of
the comparative fastness to ultraviolet light and heat of
coloured anodic oxidation coatings (ISO 6581:2018)
Anodisation de l'aluminium et de ses alliages - Anodisieren von Aluminium und
Détermination de la solidité comparée à la lumière Aluminiumlegierungen - Vergleichsbestimmung der
ultraviolette et à la chaleur des couches anodiques Beständigkeit von gefärbten, anodisch erzeugten
colorées (ISO 6581:2018) Oxidschichten gegen ultraviolettes Licht und Wärme
(ISO 6581:2018)
This European Standard was approved by CEN on 20 September 2018.
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 6581:2018 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 6581:2018) 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 March 2019, and conflicting national standards shall
be withdrawn at the latest by March 2019.
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 6581:2010.
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 6581:2018 has been approved by CEN as EN ISO 6581:2018 without any modification.
INTERNATIONAL ISO
STANDARD 6581
Third edition
2018-08
Anodizing of aluminium and its
alloys — Determination of the
comparative fastness to ultraviolet
light and heat of coloured anodic
oxidation coatings
Anodisation de l'aluminium et de ses alliages — Détermination de
la solidité comparée à la lumière ultraviolette et à la chaleur des
couches anodiques colorées
Reference number
ISO 6581:2018(E)
©
ISO 2018
ISO 6581:2018(E)
© ISO 2018
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.
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Published in Switzerland
ii © ISO 2018 – All rights reserved
ISO 6581:2018(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 1
5.1 General . 1
5.2 Cabinet . 1
5.3 Ultraviolet light source . 2
6 Test specimen . 2
6.1 Sampling . 2
6.2 Size . 2
6.3 Treatment before testing . 2
6.4 Specimen arrangement . 3
7 Procedure. 3
7.1 General . 3
7.2 Standard specimens for control purposes . 3
7.3 Effect of ozone production . 3
8 Expression of results . 3
9 Test report . 3
ISO 6581:2018(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 establis
...
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