ISO 16474-2:2013/Amd 1:2022
(Amendment)Paints and varnishes - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps - Amendment 1: Classification of daylight filters
Paints and varnishes - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps - Amendment 1: Classification of daylight filters
Peintures et vernis — Méthodes d'exposition à des sources lumineuses de laboratoire — Partie 2: Lampes à arc au xénon — Amendement 1: Classification des filtres de la lumière du jour
General Information
- Status
- Published
- Publication Date
- 11-Aug-2022
- Technical Committee
- ISO/TC 35/SC 9 - General test methods for paints and varnishes
- Drafting Committee
- ISO/TC 35/SC 9/WG 31 - Properties after application
- Current Stage
- 6060 - International Standard published
- Start Date
- 12-Aug-2022
- Due Date
- 08-Apr-2024
- Completion Date
- 12-Aug-2022
Relations
- Effective Date
- 25-Dec-2021
Overview
ISO 16474-2:2013/Amd 1:2022 is an international standard published by ISO that amends Part 2 of the "Paints and varnishes – Methods of exposure to laboratory light sources" series. This amendment focuses specifically on the classification of daylight filters used with xenon-arc lamps. Xenon-arc lamps simulate natural sunlight for accelerated weathering tests on paints and varnishes, critical for assessing material durability under UV and visible light exposure.
This amendment provides a clear classification system to differentiate daylight filters into two main types-Type I and Type II-based on their spectral irradiance properties, primarily in the ultraviolet (UV) region. This classification enhances the reproducibility and comparability of test results by defining spectral irradiance requirements more precisely.
Key Topics
Xenon-Arc Lamps with Daylight Filters: These lamps use optical filters to replicate the solar spectrum as closely as possible in laboratory tests, ensuring consistent exposure conditions for paint and varnish testing.
Daylight Filter Classification:
- Type I Filters: Feature a higher UV cut-on wavelength, similar to natural solar radiation, leading to more realistic weathering simulations with slower material degradation.
- Type II Filters: Have a lower UV cut-on wavelength, allowing more UV radiation, which typically results in faster degradation in materials.
Relative Spectral Irradiance Requirements: The amendment defines irradiance ranges in 20 nm increments from 280 nm to 400 nm wavelengths, specifying minimum and maximum percentages of total irradiance for each filter type.
Improved Test Reporting: The amendment encourages test laboratories to specify the type of daylight filter used in test reports, fostering better global consistency in material performance evaluation.
Relevance of Standards: Cross-references to ASTM D7869 and SAE J2527 illustrate the alignment with other recognized methods that use daylight filters for xenon-arc exposure testing.
Applications
Accelerated Weathering Tests: The ISO 16474-2 amendment guides manufacturers and test laboratories in selecting appropriate daylight filters for xenon-arc lamps to simulate solar exposure when testing paints, varnishes, and coatings.
Material Durability Assessment: Differentiation of filter types allows tailored test conditions matching specific real-world environments, improving the accuracy of predicting coating performance and longevity.
Product Development and Quality Control: Consistent exposure conditions enable reliable verification of product durability claims and aid in optimizing formulations for UV resistance.
Research and Comparative Analysis: Classification supports academic and industrial research by providing a standardized framework to compare data across different laboratories and studies effectively.
Related Standards
ISO 16474 Series: The broader framework for laboratory light exposure methods for paints and varnishes, including Part 1 and other relevant parts.
ISO/TR 17801: Provides the standard reference solar spectral irradiance data crucial for calibrating laboratory UV exposure devices.
ASTM D7869: Covers enhanced xenon arc exposure tests for transportation coatings, aligning with Type I daylight filter definitions in ISO 16474-2:2022.
SAE J2527: Defines performance standards for accelerated exposure of automotive exterior materials using controlled irradiance xenon-arc apparatus, associated with Type II filter classification.
This amendment to ISO 16474-2 ensures that laboratories have a clear, internationally accepted classification to select and report the daylight filters used in xenon-arc lamp exposure tests. By improving test result consistency and comparability, the standard supports product quality, innovation, and consumer safety across coatings and paint industries. For professionals involved in coating durability testing, adherence to this amendment is essential for credible, reproducible results under laboratory light sources simulating natural sunlight.
ISO 16474-2:2013/Amd 1:2022 - Paints and varnishes — Methods of exposure to laboratory light sources — Part 2: Xenon-arc lamps — Amendment 1: Classification of daylight filters Released:12. 08. 2022
ISO 16474-2:2013/Amd 1:2022 - Paints and varnishes — Methods of exposure to laboratory light sources — Part 2: Xenon-arc lamps — Amendment 1: Classification of daylight filters Released:12. 08. 2022
Frequently Asked Questions
ISO 16474-2:2013/Amd 1:2022 is a standard published by the International Organization for Standardization (ISO). Its full title is "Paints and varnishes - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps - Amendment 1: Classification of daylight filters". This standard covers: Paints and varnishes - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps - Amendment 1: Classification of daylight filters
Paints and varnishes - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps - Amendment 1: Classification of daylight filters
ISO 16474-2:2013/Amd 1:2022 is classified under the following ICS (International Classification for Standards) categories: 87.040 - Paints and varnishes. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 16474-2:2013/Amd 1:2022 has the following relationships with other standards: It is inter standard links to ISO 16474-2:2013. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO 16474-2:2013/Amd 1:2022 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 16474-2
First edition
2013-11-15
AMENDMENT 1
2022-08
Paints and varnishes — Methods
of exposure to laboratory light
sources —
Part 2:
Xenon-arc lamps
AMENDMENT 1: Classification of daylight
filters
Peintures et vernis — Méthodes d'exposition à des sources lumineuses
de laboratoire —
Partie 2: Lampes à arc au xénon
AMENDEMENT 1: Classification des filtres de la lumière du jour
Reference number
ISO 16474-2:2013/Amd.1:2022(E)
ISO 16474-2:2013/Amd.1:2022(E)
© ISO 2022
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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
© ISO 2022 – All rights reserved
ISO 16474-2:2013/Amd.1:2022(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
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on the ISO list of patent declarations received (see www.iso.org/patents).
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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 TC 35, Paints and varnishes, Subcommittee SC
9, General test methods for paints and varnishes, in collaboration with the European Committee for
Standardization (CEN) Technical Committee CEN/TC 139, Paints and varnishes, in accordance with the
Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
A list of all parts in the ISO 16474 series can be found on the ISO website.
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.
iii
© ISO 2022 – All rights reserved
ISO 16474-2:2013/Amd.1:2022(E)
Paints and varnishes — Methods of exposure to laboratory
light sources —
Part 2:
Xenon-arc lamps
AMENDMENT 1: Classification of daylight filters
5.1.2
Add a second paragraph, including a reference to the new Annex:
Annex C differentiates between two different types of daylight filters: type I and type II. Both types fall
under the relative spectral irradiance requirements of xenon-arc lamps with daylight filters given in
Table 1.
Annex C
Add the following new Annex, after Annex B, before the Bibliography:
© ISO 2022 – All rights reserved
ISO 16474-2:2013/Amd.1:2022(E)
Annex C
(informative)
Classification of daylight filters
C.1 Motivation
The relative spectral irradiance requirements for xenon-arc lamps with daylight filters a
...
NORME ISO
INTERNATIONALE 16474-2
Première édition
2013-11-15
AMENDEMENT 1
2022-08
Peintures et vernis — Méthodes
d'exposition à des sources lumineuses
de laboratoire —
Partie 2:
Lampes à arc au xénon
AMENDEMENT 1: Classification des
filtres de la lumière du jour
Paints and varnishes — Methods of exposure to laboratory light
sources —
Part 2: Xenon-arc lamps
AMENDMENT 1: Classification of daylight filters
Numéro de référence
ISO 16474-2:2013/Amd.1:2022(F)
ISO 16474-2:2013/Amd.1:2022(F)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2022
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: +41 22 749 01 11
E-mail: copyright@iso.org
Web: www.iso.org
Publié en Suisse
ii
© ISO 2022 – Tous droits réservés
ISO 16474-2:2013/Amd.1:2022(F)
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes
nationaux de normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est
en général confiée aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude
a le droit de faire partie du comité technique créé à cet effet. Les organisations internationales,
gouvernementales et non gouvernementales, en liaison avec l'ISO participent également aux travaux.
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concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d'approbation requis pour les différents types de documents ISO. Le présent document a été
rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir www.
iso.org/directives).
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droits de propriété intellectuelle ou de droits analogues. L’ISO ne saurait être tenue pour responsable
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de propriété intellectuelle ou autres droits analogues identifiés lors de l'élaboration du document sont
indiqués dans l'Introduction et/ou dans la liste des déclarations de brevets reçues par l'ISO (voir www.
iso.org/brevets).
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Pour une explication de la nature volontaire des normes, la signification des termes et expressions
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de l'ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles
techniques au commerce (OTC), voir le lien suivant: www.iso.org/iso/avant-propos.html.
Le présent document a été élaboré par le comité technique TC 35, Peintures et vernis, sous-comité SC 9,
Méthodes générales d’essai des peintures et vernis, en collaboration avec le comité technique CEN/TC 139,
Peintures et vernis du Comité européen de normalisation (CEN), conformément à l'Accord de coopération
technique entre l'ISO et le CEN (Accord de Vienne).
Une liste de toutes les parties de la série ISO 16474 peut être consultée sur le site de l’ISO.
Il convient que l’utilisateur adresse tout retour d’information ou toute question concernant le présent
document à l’organisme national de normalisation de son pays. Une liste exhaustive desdits organismes
se trouve à l’adresse https://www.iso.org/members.html.
iii
© ISO 2022 – Tous droits réservés
ISO 16474-2:2013/Amd.1:2022(F)
Peintures et vernis — Méthodes d'exposition à des sources
lumineuses de laboratoire —
Partie 2:
Lampes à arc au xénon
AMENDEMENT 1: Classification des filtres de la lumière du jour
5.1.2
Ajouter un deuxième alinéa incluant une référence à la nouvelle Annexe:
L’Annexe C fait la distinction entre deux types différents de filtres de lumière du jour: le type I et
le type II. Ces deux types relèvent des exigences portant sur l’éclairement spectral énergétique relatif
des lampes à arc au xénon avec filtres de la lumière du jour, indiquées dans le Tableau 1.
Annexe C
Ajouter la nouvelle annexe suivante, après l'Annexe B, avant la Bibliographie:
© ISO 2022 – Tous droits réservés
ISO 16474-2:2013/Amd.1:2022(F)
Annexe C
(informative)
Classification des filtres de la lumière du jour
C.1 Motivation
Les exigences portant sur l’éclairement spectral énergétique relatif des lampes à arc au xénon avec
filtres de la lumière du jour autorisent l’emploi d’une large gamme de systèmes de filtres optiques, avec
différentes longueurs d’onde de coupure dans l’ultraviolet. Toutefois, la plupart
...
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