EN ISO 16474-3:2021

Paints and varnishes - Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps (ISO 16474-3:2021)

This document specifies methods for exposing coatings to fluorescent UV lamps, heat and water in apparatus designed to reproduce the weathering effects that occur when materials are exposed in actual end-use environments to daylight, or to daylight through window glass.
The coatings are exposed to different types of fluorescent UV lamps under controlled environmental conditions (temperature, humidity and/or water). Different types of fluorescent UV lamp can be used to meet all the requirements for testing different materials.
Specimen preparation and evaluation of the results are covered in other ISO documents for specific materials.
General guidance is given in ISO 16474‑1.
NOTE     Fluorescent UV lamp exposures for plastics are described in ISO 4892‑3.

Beschichtungsstoffe - Künstliches Bestrahlen oder Bewittern in Geräten - Teil 3: UV-Leuchtstofflampen (ISO 16474-3:2021)

Dieses Dokument legt Verfahren zum Beanspruchen von Beschichtungen mit UV-Leuchtstofflampen, Wärme und Wasser fest, um mit dafür entwickelten Geräten die Einflüsse der Bewitterung zu reproduzieren, die auftreten, wenn Materialien im Endgebrauch in den vorhandenen Umgebungen durch Tageslicht oder durch Fensterglas gefiltertes Tageslicht beansprucht werden.
Die Beschichtungen werden mit unterschiedlichen Typen von UV-Leuchtstofflampen unter geregelten Umweltbedingungen (Temperatur, Luftfeuchte und/oder Wasser) beansprucht. Verschiedene Typen von UV-Leuchtstofflampen können angewendet werden, um alle Anforderungen zu erfüllen, die bei der Prüfung verschiedener Materialien gestellt werden.
Die Herstellung der Probenplatten und die Bewertung der Ergebnisse werden in anderen Internationalen Normen für spezifische Materialien behandelt.
Eine allgemeine Anleitung wird in ISO 16474 1 gegeben.
ANMERKUNG   Die Beanspruchung von Kunststoffen mit UV-Leuchtstofflampen wird in ISO 4892 3 beschrieben.

Peintures et vernis - Méthodes d'exposition à des sources lumineuses de laboratoire - Partie 3: Lampes fluorescentes UV (ISO 16474-3:2021)

Le présent document spécifie des méthodes d'exposition de feuils à des lampes fluorescentes UV, en présence de chaleur et d'eau dans des appareils conçus pour reproduire les effets du vieillissement qui se produisent lorsque des matériaux sont exposés, dans les environnements d'utilisation finale réels, à la lumière du jour ou à la lumière du jour filtrée à travers un vitrage de fenêtre.
Les feuils sont exposés à différents types de lampes fluorescentes UV dans des conditions environnementales maîtrisées (température, humidité et/ou eau). Différents types de lampes fluorescentes UV peuvent être utilisés pour répondre à toutes les exigences relatives aux essais de différents matériaux.
La préparation des éprouvettes et l'évaluation des résultats sont traitées dans d'autres documents ISO concernant les matériaux spécifiques.
Des lignes directrices générales sont données dans l'ISO 16474‑1.
NOTE       L'exposition des matières plastiques aux lampes fluorescentes UV est décrite dans l'ISO 4892‑3.

Barve in laki - Metode izpostavljanja laboratorijskim virom svetlobe - 3. del: Fluorescentne UV-svetilke (ISO 16474-3:2021)

General Information

• Status: Published
• Publication Date: 19-Jan-2021
• Withdrawal Date: 30-Jul-2021
• ICS: 87.040 - Paints and varnishes
• Technical Committee: CEN/TC 139 - Paints and varnishes
• Drafting Committee: CEN/TC 139 - Paints and varnishes
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 20-Jan-2021
• Completion Date: 20-Jan-2021
• Ref Project: SIST EN ISO 16474-3:2021 - Paints and varnishes - Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps (ISO 16474-3:2021)

Relations

• Replaces: EN ISO 16474-3:2013 - Paints and varnishes - Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps (ISO 16474-3:2013)
• Effective Date: 27-Jan-2021

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2021
Nadomešča:
SIST EN ISO 16474-3:2014
Barve in laki - Metode izpostavljanja laboratorijskim virom svetlobe - 3. del:
Fluorescentne UV-svetilke (ISO 16474-3:2021)
Paints and varnishes - Methods of exposure to laboratory light sources - Part 3:
Fluorescent UV lamps (ISO 16474-3:2021)
Beschichtungsstoffe - Künstliches Bestrahlen oder Bewittern in Geräten - Teil 3: UV-
Fluoreszenzlampen (ISO 16474-3:2021)
Peintures et vernis - Méthodes d'exposition à des sources lumineuses de laboratoire -
Partie 3: Lampes fluorescentes UV (ISO 16474-3:2021)
Ta slovenski standard je istoveten z: EN ISO 16474-3:2021
ICS:
87.040 Barve in laki Paints and varnishes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 16474-3
EUROPEAN STANDARD
NORME EUROPÉENNE
January 2021
EUROPÄISCHE NORM
ICS 87.040 Supersedes EN ISO 16474-3:2013
English Version
Paints and varnishes - Methods of exposure to laboratory
light sources - Part 3: Fluorescent UV lamps (ISO 16474-
3:2021)
Peintures et vernis - Méthodes d'exposition à des Beschichtungsstoffe - Künstliches Bestrahlen oder
sources lumineuses de laboratoire - Partie 3: Lampes Bewittern in Geräten - Teil 3: UV-Fluoreszenzlampen
fluorescentes UV (ISO 16474-3:2021) (ISO 16474-3:2021)
This European Standard was approved by CEN on 17 October 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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16474-3:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 16474-3:2021) has been prepared by Technical Committee ISO/TC 35 "Paints
and varnishes" in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” the
secretariat of which is held by DIN.
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 July 2021, and conflicting national standards shall be
withdrawn at the latest by July 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.
This document supersedes EN ISO 16474-3:2013.
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 16474-3:2021 has been approved by CEN as EN ISO 16474-3:2021 without any
modification.
INTERNATIONAL ISO
STANDARD 16474-3
Second edition
2021-01
Paints and varnishes — Methods
of exposure to laboratory light
sources —
Part 3:
Fluorescent UV lamps
Peintures et vernis — Méthodes d'exposition à des sources lumineuses
de laboratoire —
Partie 3: Lampes fluorescentes UV
Reference number
ISO 16474-3:2021(E)
©
ISO 2021
ISO 16474-3:2021(E)
© ISO 2021
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]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

ISO 16474-3:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 3
5.1 Laboratory light source . 3
5.2 Test chamber . 6
5.3 Radiometer . 6
5.4 Black-standard/black-panel thermometer . 6
5.5 Wetting and humidity . 7
5.5.1 General. 7
5.5.2 Spray and condensation system . 7
5.6 Specimen holders . 7
5.7 Apparatus to assess changes in properties . 7
6 Test specimens (panels) . 7
6.1 General . 7
6.2 Preparation and coating . . 8
6.3 Drying and conditioning . 8
6.4 Thickness of coating . 8
6.5 Number of test panels . 8
7 Test conditions . 8
7.1 General . 8
7.2 Radiation . 8
7.3 Temperature . 8
7.4 Relative humidity of chamber air . 9
7.5 Condensation and spray cycles . 9
7.6 Complex cycles with dark periods . 9
7.7 Sets of exposure conditions . 9
8 Procedure and mounting of the test specimens .10
8.1 General .10
8.2 Exposure .10
8.3 Measurement of radiant exposure .11
8.4 Determination of changes in properties after exposure .11
9 Test report .11
Annex A (informative) Spectral distribution of radiation for typical fluorescent UV lamps .12
Bibliography .16
ISO 16474-3:2021(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).
Attentio
...