ISO 4892-3

Plastics — Methods of exposure to laboratory light sources — Part 3: Fluorescent UV lamps

ISO 4892-3:2016 specifies methods for exposing specimens to fluorescent UV radiation, heat and water in apparatus designed to simulate the weathering effects that occur when materials are exposed in actual end-use environments to global solar radiation, or to solar radiation through window glass. The specimens are exposed to 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 International Standards for specific materials. General guidance is given in ISO 4892‑1. NOTE Fluorescent UV lamp exposures for paints, varnishes and other coatings are described in ISO 11507.

Plastiques — Méthodes d'exposition à des sources lumineuses de laboratoire — Partie 3: Lampes fluorescentes UV

ISO 4892-3:2016 spécifie des méthodes pour l'exposition d'éprouvettes à des rayonnements fluorescents UV, à la chaleur et à l'eau dans un appareillage conçu pour simuler les effets du vieillissement qui interviennent lorsque des matériaux sont exposés au rayonnement solaire total dans des environnements d'utilisation finale réelle, ou au rayonnement solaire à travers un vitrage de fenêtre. Les éprouvettes sont exposées à des lampes fluorescentes UV dans des conditions environnementales maîtrisées (température, humidité et/ou teneur en eau). Différents types de lampes fluorescentes UV peuvent être utilisés pour satisfaire aux exigences relatives aux essais de différents matériaux. La préparation des éprouvettes et l'évaluation des résultats sont traitées dans d'autres Normes internationales pour des matériaux spécifiques. Des lignes directrices générales sont données dans l'ISO 4892‑1. NOTE L'exposition aux lampes fluorescentes UV des peintures, vernis et autres revêtements est décrite dans l'ISO 11507.

General Information

• Status: Not Published
• ICS: 83.080.01 - Plastics in general
• Technical Committee: ISO/TC 61/SC 6 - Ageing, chemical and environmental resistance
• Drafting Committee: ISO/TC 61/SC 6 - Ageing, chemical and environmental resistance
• Current Stage: 6000 - International Standard under publication
• Completion Date: 17-Sep-2024

Relations

• Revises: ISO 4892-3:2016 - Plastics — Methods of exposure to laboratory light sources — Part 3: Fluorescent UV lamps
• Effective Date: 06-Jun-2022

Standards Content (Sample)

DRAFT INTERNATIONAL STANDARD
ISO/DIS 4892-3
ISO/TC 61/SC 6 Secretariat: DIN
Voting begins on: Voting terminates on:
2023-11-06 2024-01-29
Plastics — Methods of exposure to laboratory light
sources —
Part 3:
Fluorescent UV lamps
Plastiques — Méthodes d'exposition à des sources lumineuses de laboratoire —
Partie 3: Lampes fluorescentes UV
ICS: 83.080.01
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 4892-3:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

ISO/DIS 4892-3:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 4892-3
ISO/TC 61/SC 6 Secretariat: DIN
Voting begins on: Voting terminates on:

Plastics — Methods of exposure to laboratory light
sources —
Part 3:
Fluorescent UV lamps
Plastiques — Méthodes d'exposition à des sources lumineuses de laboratoire —
Partie 3: Lampes fluorescentes UV
ICS: 83.080.01
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on STANDARD UNTIL PUBLISHED AS SUCH.
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
IN ADDITION TO THEIR EVALUATION AS
or ISO’s member body in the country of the requester. BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
ISO copyright office
USER PURPOSES, DRAFT INTERNATIONAL
CP 401 • Ch. de Blandonnet 8
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
CH-1214 Vernier, Geneva
POTENTIAL TO BECOME STANDARDS TO
Phone: [phone]
WHICH REFERENCE MAY BE MADE IN
Reference number
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NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 4892-3:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

ISO/DIS 4892-3:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and Definitions .1
4 Principle . 1
5 Apparatus . 2
5.1 Laboratory light source . 2
5.2 Test chamber . 5
5.3 Radiometer . 6
5.4 Control of temperature . 6
5.5 Wetting . 6
5.5.1 General . 6
5.5.2 Spray and condensation system . 7
5.6 Control of humidity . 7
5.7 Specimen holders . 7
5.8 Apparatus to assess changes in properties . 7
6 Test specimens . 8
7 Test conditions .8
7.1 Radiation . 8
7.2 Temperature . 8
7.3 Condensation and spray cycles . 8
7.4 Cycles with dark periods . 8
7.5 Sets of exposure conditions . 8
8 Procedure .10
8.1 General . 10
8.2 Mounting the test specimens . 10
8.3 Exposure . 10
8.4 Measurement of radiant exposure . 11
8.5 Determination of changes in properties after exposure. 11
9 Test report .11
Annex A (normative) Relative irradiance of typical fluorescent UV lamps .12
Annex B (informative) Condensation type device .16
Annex C (informative) Climatic chamber type device .17
Annex D (informative) Alternative test cycles .18
Bibliography .19
iii
ISO/DIS 4892-3:2023(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).
ISO draws attention to the possibility that the implementation of this document may involve the use
of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed
patent rights in respect thereof. As of the date of publication of this document, ISO had not received
notice of (a) patent(s) which may be required to implement this document. However, implementers are
cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents). ISO shall not be held responsible for identifying any or all
such patent rights.
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 61, Plastics, Subcommittee SC 6,
Ageing, chemical and environmental resistance, in collaboration with the European Committee for
Standardization (CEN) Technical Committee CEN/TC 249, Plastics, in accordance with the Agreement
on technical cooperation between ISO and CEN (Vienna Agreement).
This fifth edition cancels and replaces the fourth edition (ISO 4892-3:2016), which has been technically
revised.
The main changes are as follows:
— clarification that two fundamentally different types of test chambers exist added (e.g. in 5.2, 5.4,
new Annexes);
— new Annex B “Condensation type device”, Annex C “Climatic chamber type device” and Annex D
“Alternative test cycles” added;
— reference to CIE 85 updated to CIE 241;
— combination of different UV fluorescent lamps deleted;
— Clause 3 “Terms and definitions” added;
— lamp type designations 1A, 1B, 2 deleted;
— editorial changes.
A list of all parts in the ISO 4892 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.
iv
DRAFT INTERNATIONAL STANDARD ISO/DIS 4892-3:2023(E)
Plastics — Methods of exposure to laboratory light
sources —
Part 3:
Fluorescent UV lamps
1 Scope
This part of ISO 4892 specifies methods for exposing specimens to fluorescent UV radiation, heat and
water in apparatus designed to simulate the weathering effects that occur when materials are exposed
in actual end-use environments to global solar radiation, or to window-glass filtered solar radiation.
The specimens are exposed to radiation from fluorescent UV lamps under controlled environmental
conditions (temperature, humidity and/or water). Different types of fluorescent UV lamps can be used
to meet all the requirements for testing different materials.
Specimen preparation and evaluation of the results are covered in other International Standards for
specific materials.
General guidance is given in ISO 4892-1.
NOTE Fluorescent UV lamp exposures for paints, varnishes and other coatings are described in ISO 16474-3.
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 (includin
...

FINAL DRAFT
International
Standard
ISO/FDIS 4892-3
ISO/TC 61/SC 6
Plastics — Methods of exposure to
Secretariat: DIN
laboratory light sources —
Voting begins on:
2024-07-22
Part 3:
Fluorescent UV lamps
Voting terminates on:
2024-09-16
Plastiques — Méthodes d'exposition à des sources lumineuses de
laboratoire —
Partie 3: Lampes fluorescentes UV
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/CEN PARALLEL PROCESSING LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 4892-3:2024(en) © ISO 2024

FINAL DRAFT
ISO/FDIS 4892-3:2024(en)
International
Standard
ISO/FDIS 4892-3
ISO/TC 61/SC 6
Plastics — Methods of exposure to
Secretariat: DIN
laboratory light sources —
Voting begins on:
Part 3:
Fluorescent UV lamps
Voting terminates on:
Plastiques — Méthodes d'exposition à des sources lumineuses de
laboratoire —
Partie 3: Lampes fluorescentes UV
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
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 Reference number
ISO/FDIS 4892-3:2024(en) © ISO 2024

ii
ISO/FDIS 4892-3:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 2
5.1 Laboratory light source .2
5.2 Test chamber .5
5.3 Radiometer .6
5.4 Control of temperature .6
5.5 Wetting .6
5.5.1 General .6
5.5.2 Condensation and water spray system.7
5.6 Control of humidity .7
5.7 Specimen holders .7
5.8 Apparatus to assess changes in properties .7
6 Test specimens . 8
7 Test conditions . 8
7.1 Radiation .8
7.2 Temperature .8
7.3 Condensation and spray cycles .8
7.4 Cycles with dark periods .8
7.5 Sets of exposure conditions .8
8 Procedure .10
8.1 General .10
8.2 Mounting the test specimens .10
8.3 Exposure .10
8.4 Measurement of radiant exposure .11
8.5 Determination of changes in properties after exposure.11
9 Test report .11
Annex A (normative) Relative irradiance of typical fluorescent UV lamps .12
Annex B (informative) Condensation type device .16
Annex C (informative) Climatic chamber type device . 17
Annex D (informative) Alternative test cycles .18
Bibliography . 19

iii
ISO/FDIS 4892-3:2024(en)
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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents). ISO shall not be held responsible for identifying any or all such patent rights.
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 61, Plastics, Subcommittee SC 6, Ageing,
chemical and environmental resistance, in collaboration with the European Committee for Standardization
(CEN) Technical Committee CEN/TC 249, Plastics, in accordance with the Agreement on technical cooperation
between ISO and CEN (Vienna Agreement).
This fifth edition cancels and replaces the fourth edition (ISO 4892-3:2016), which has been technically
revised.
The main changes are as follows:
— clarification that two fundamentally different types of test chambers exist added (e.g. in 5.2, 5.4, new
Annexes);
— Table 4 has been split into two separate tables for the different types of test chambers, Table 4 applies to
condensation type devices and Table 5 to climatic chamber type devices;
— new Annex B “Condensation type device”, Annex C “Climatic chamber type device” and Annex D
“Alternative test cycles” have been added;
— reference to CIE 85 has been updated to CIE 241;
— combination of different UV fluorescent lamps have been deleted;
— mandatory Clause 3 “Terms and definitions” has been added and subsequent clauses have been
renumbered;
— lamp type designations 1A, 1B, 2 have been deleted.
A list of all parts in the ISO 4892 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.

iv
FINAL DRAFT International Standard ISO/FDIS 4892-3:2024(en)
Plastics — Methods of exposure to laboratory light sources —
Part 3:
Fluorescent UV lamps
1 Scope
This document specifies methods for exposing plastic specimens to fluorescent UV lamp radiation, heat
and water in apparatus designed to simulate the weathering effects that occur when plastic materials are
exposed in actual end-use environments to global solar radiation, or to window-glass filtered solar radiation.
Fluorescent UV lamp exposures for paints, varnishes and other coatings are described in ISO 16474-3.
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 4582, Plastics — Determination of changes in colour and variations in properties after exposure to glass-
filtered radiation, natural weathering or laboratory radiation sources
ISO 4892-1, Plastics — Methods of exposure to laboratory
...

Date: 2024-06-12 Style Definition
...
Formatted: Left: 1.5 cm, Right: 1.5 cm, Top: 1.4 cm,
Gutter: 0 cm, Section start: New page, Header distance from
ISO/FDIS 4892-3:2024(E)
edge: 1.27 cm, Footer distance from edge: 1.27 cm
Formatted: French (Switzerland)
ISO/TC 61/SC 6/WG 2
Formatted: zzCover large, Adjust space between Latin and
Asian text, Adjust space between Asian text and numbers
Secretariat: DIN
Formatted
...
Date: 2024-07-08
Formatted
...
Plastics — Methods of exposure to laboratory light sources —
Formatted: Regular, French (Switzerland)
Part 3:
Formatted: Cover Title_A2, Adjust space between Latin and
Fluorescent UV lamps
Asian text, Adjust space between Asian text and numbers
Formatted: French (Switzerland)
Plastiques — Méthodes d'exposition à des sources lumineuses de laboratoire —
Formatted: French (France)
Partie 3: Lampes fluorescentes UV Formatted: French (France)
Formatted: Cover Title_B, Adjust space between Latin and
Asian text, Adjust space between Asian text and numbers
FDIS stage
ISO/FDIS 4892-3:2024(Een) Formatted: English (United Kingdom)
Formatted: HeaderCentered
Formatted: English (United Kingdom)
Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
Formatted: Default Paragraph Font
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,
Formatted: Default Paragraph Font
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'sISO’s member body in the country of the requester.
ISO Copyright Officecopyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Formatted: zzCopyright address, Adjust space between Latin
and Asian text, Adjust space between Asian text and numbers
Phone: + 41 22 749 01 11
Formatted: French (Switzerland)
Email: [e-mail]
E-mail: [e-mail]
Website: www.iso.orgwww.iso.org
Formatted: zzCopyright address, Adjust space between Latin
and Asian text, Adjust space between Asian text and numbers
Published in Switzerland.
Formatted: FooterPageRomanNumber
ii © ISO 2024 – All rights reserved
ii
ISO/FDIS 4892-3:2024(Een) Formatted: English (United Kingdom)
Formatted: HeaderCentered, Left
Formatted: English (United Kingdom)
Contents Page Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers, Tab stops: Not
at 0.71 cm + 17.2 cm
Foreword . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 2
5.1 Laboratory light source . 2
5.2 Test chamber . 5
5.3 Radiometer. 6
5.4 Control of temperature . 6
5.5 Wetting . 7
5.5.1 General. 7
5.5.2 Condensation and water spray system . 7
5.6 Control of humidity . 8
5.7 Specimen holders . 8
5.8 Apparatus to assess changes in properties . 8
6 Test specimens . 8
7 Test conditions . 8
7.1 Radiation . 8
7.2 Temperature. 8
7.3 Condensation and spray cycles . 9
7.4 Cycles with dark periods . 9
7.5 Sets of exposure conditions . 9
8 Procedure . 11
8.1 General. 11
8.2 Mounting the test specimens . 11
8.3 Exposure . 12
8.4 Measurement of radiant exposure . 12
8.5 Determination of changes in properties after exposure . 12
9 Test report . 12
Annex A (normative) Relative irradiance of typical fluorescent UV lamps . 13
A.1 General. 13
A.2 Spectral irradiance data of UV fluorescent lamps . 13
A.2.1 UVA-340 lamps . 13
A.2.2 UVA-351 lamps . 15
A.2.3 UVB-313 lamps . 17
Annex B (informative) Condensation type device. 19
Annex C (informative) Climatic chamber type device . 21
Annex D (informative) Alternative test cycles . 24
Bibliography . 25

Foreword . 4
Formatted: FooterPageRomanNumber, Left
iii
ISO/FDIS 4892-3:2024(Een) Formatted: HeaderCentered
Formatted: English (United Kingdom)
Formatted: English (United Kingdom)
1 Scope . 1
2 Normative references . 1
3 Terms and Definitions. 1
4 Principle . 1
5 Apparatus . 2
5.1 Laboratory light source . 2
5.2 Test chamber . 5
5.3 Radiometer. 6
5.4 Control of temperature . 6
5.5 Wetting . 7
5.5.1 General. 7
5.5.2 Condensation and water spray system . 7
5.6 Control of humidity . 8
5.7 Specimen holders . 8
5.8 Apparatus to assess changes in properties . 8
6 Test specimens . 8
7 Test conditions . 8
7.1 Radiation . 8
7.2 Temperature. 8
7.3 Condensation and spray cycles . 8
7.4 Cycles with dark periods . 9
7.5 Sets of exposure conditions . 9
8 Procedure . 11
8.1 General. 11
8.2 Mounting the test specimens . 11
8.3 Exposure . 11
8.4 Measurement of radiant exposure . 12
8.5 Determination of changes in properties after exposure . 12
9 Test report . 12
Annex A (normative)  Relative irradiance of typical fluorescent UV lamps . 13
A.1 General. 13
A.2 Spectral irradiance data of UV fluorescent lamps . 13
A.2.1 UVA-340 lamps .
...

PROJET DE NORME INTERNATIONALE
ISO/DIS 4892-3
ISO/TC 61/SC 6 Secrétariat: DIN
Début de vote: Vote clos le:
2023-11-06 2024-01-29
Plastiques — Méthodes d'exposition à des sources
lumineuses de laboratoire —
Partie 3:
Lampes fluorescentes UV
Plastics — Methods of exposure to laboratory light sources —
Part 3: Fluorescent UV lamps
ICS: 83.080.01
Le présent document est distribué tel qu’il est parvenu du secrétariat du comité.
CE DOCUMENT EST UN PROJET DIFFUSÉ POUR
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OUTRE LE FAIT D’ÊTRE EXAMINÉS POUR
ÉTABLIR S’ILS SONT ACCEPTABLES À DES
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Date : 2023‐10‐01
ISO/DIS 4892‐3:2023(F)
ISO/DIS 4892-3:2023(F)
ISO/TC 61/SC 6/WG 2
Secrétariat : DIN
Plastiques — Méthodes d’exposition à des sources lumineuses de laboratoire —
Partie 3 : Lampes fluorescentes UV
Plastics — Methods of exposure to laboratory light sources — Part 3: Fluorescent UV lamps
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2023
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.: [phone]
E-mail: [e-mail]
Web: www.iso.org
Publié en Suisse
ii
ISO/DIS 4892‐3:2023(F)
Sommaire Page
Avant‐propos . 4
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Principe . 2
5 Appareillage . 2
5.1 Source lumineuse de laboratoire . 2
5.2 Enceinte d’essai . 6
5.3 Radiomètre . 7
5.4 Régulation de température . 7
5.5 Mouillage . 8
5.5.1 Généralités . 8
5.5.2 Système de vaporisation et de condensation . 8
5.6 Régulation de l’humidité . 9
5.7 Porte‐éprouvettes . 9
5.8 Appareillage d’évaluation des changements de propriétés . 9
6 Éprouvettes . 9
7 Conditions d’essai .
7.1 Rayonnement . 9
7.2 Température . 9
7.3 Cycles de condensation et de vaporisation . 10
7.4 Cycles avec des périodes d’obscurité . 10
7.5 Séries de conditions d’exposition . 10
8 Mode opératoire . 12
8.1 Généralités . 12
8.2 Fixation des éprouvettes . 12
8.3 Exposition . 12
8.4 Mesurage de l’exposition énergétique . 13
8.5 Détermination des changements des propriétés après exposition . 13
9 Rapport d’essai . 13
Annexe A (normative) Irradiance relative de lampes fluorescentes UV caractéristiques . 14
A.1 Généralités . 14
A.2 Données d’irradiance spectrale pour les lampes fluorescentes UV . 14
A.2.1 Lampes UVA‐340 et UVA‐351 . 14
A.2.2 Lampes UVB‐313 . 16
Annexe B (informative) Dispositif de type à condensation . 18
Annexe C (informative) Dispositif de type enceinte climatique . 19
Annexe D (informative) Cycles d’essais alternatifs . 20
Bibliographie . 21
ISO/DIS 4892‐3:2023(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. L’ISO collabore
étroitement avec la Commission électrotechnique internationale (IEC) en ce qui 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).
L’ISO attire l’attention sur le fait que la mise en application du présent document peut entraîner
l’utilisation d’un ou de plusieurs brevets. L’ISO ne prend pas position quant à la preuve, à la validité et à
l’applicabilité de tout droit de brevet revendiqué à cet égard. À la date de publication du présent
document, l’ISO n’avait pas reçu notification qu’un ou plusieurs brevets pouvaient être nécessaires à sa
mise en application. Toutefois, il y a lieu d’avertir les responsables de la mise en application du présent
document que des informations plus récentes sont susceptibles de figurer dans la base de données de
brevets, disponible à l’adresse www.iso.org/brevets. L’ISO ne saurait être tenue pour responsable de ne
pas avoir identifié tout ou partie de tels droits de brevet.
Les appellations commerciales éventuellement mentionnées dans le présent document sont données
pour information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer un
engagement.
Pour une explication de la nature volontaire des normes, la signification des termes et expressions
spécifiques de l’ISO liés à l’évaluation de la conformité, ou pour toute information au sujet de l’adhésion
de l’ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles
techniques au commerce (OTC), voir : www.iso.org/avant-propos.
Le présent document a été élaboré par le comité technique ISO/TC 61, Plastiques, sous-comité SC 6,
Vieillissement et résistance aux agents chimiques et environnants , en collaboration avec le comité
technique CEN/TC 249, Plastiques, du Comité européen de normalisation (CEN), conformément à
l’Accord de coopération technique entre l’ISO et le CEN (Accord de Vienne).
Cette première édition annule et remplace la quatrième édition (ISO 4892-3:2016), qui a fait l’objet d’une
révision technique.
Les principales modifications sont les suivantes :
— clarification du fait qu’il existe deux types fondamentalement différents d’enceintes d’essai (par
exemple en 5.2, 5.4, nouvelles annexes) ;
— ajout d’une nouvelle Annexe B « Dispositif de type à condensation », Annexe C« Dispositif de type
enceinte climatique » et Annexe D « Cycles d’essais alternatifs » ;
— référence à la Publication CIE 85 mise à jour en Publication CIE 241 ;
— suppression de la combinaison de différentes lampes fluorescentes UV ;
iv © ISO 2023 – Tous droits réservés

ISO/DIS 4892‐3:2023(F)
— ajout de l’Article 3 « Termes et définitions » ;
— suppression des désignations des types de lampes 1A, 1B et 2 ;
— modifications éditoriales.
Une liste de toutes les parties de la série ISO 4892 est disponible sur le site web 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 www.iso.org/fr/members.html.
PROJET DE NORME INTERNATIONALE ISO/DIS 4892‐3:2023(F)

Plastiques — Méthodes d’exposition à des sources lumineuses de
laboratoire — Partie 3 : Lampes fluorescentes UV
1 Domaine d’application
La présente partie de l’ISO 4892 spécifie des méthodes pour l’exposition d’éprouvettes à des
rayonnements fluorescents UV, à la chaleur et à l’eau dans un appareillage conçu pour simuler les effets
du vieillissement qui interviennent lorsque des matériaux sont exposés au rayonnement solaire globale
dans des environnements d’utilisation finale réelle, ou au rayonnement solaire derrière une vitre en
verre.
Les éprouvettes sont exposées au rayonnement de lampes fluorescentes UV dans des conditions
environnementales maîtrisées (température, humidité et/ou teneur en eau). Différents types de lampes
fluorescentes UV peuvent être utilisés pour satisfaire aux exigences relatives aux essais de différents
matériaux.
La préparation des éprouvettes et l’évaluation des résultats sont traitées dans d’autres Normes
internationales pour des matériaux spécifiques.
Des recommandations générales sont données dans l’ISO 4892-1.
NOTE L’exposition aux lampes fluorescentes UV des peintures, vernis et autres revêtements est décrite dans
l’ISO 16474-3.
2 Références normatives
Les documents suivants cités dans le texte constituent, pour tout ou partie de leur contenu, des exigences
du présent document. Pour les références datées, seule l’édition citée s’applique. Pour les références non
datées, la dernière édition du document de référence s’applique (y compris les éventuels amendements).
ISO 4582, Plastiques — Détermination des changements de coloration et des variations de propriétés après
exposition à la lumière du jour sous verre, aux agents atmosphériques ou aux sources lumineuses de
laboratoire
ISO 4892-1, Plastiques — Méthodes d'exposition à des sources lumineuses de laboratoire — Partie 1: Lignes
directrices générales
Publication CIE No. 241, Irradiance spectrale solaire
3 Termes et définitions
Pour les besoins du présent do
...