SIST EN ISO 4892-3:2006
(Main)Plastics - Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps (ISO 4892-3:2006)
Plastics - Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps (ISO 4892-3:2006)
This part of ISO 4892 specifies methods for exposing specimens to fluorescent UV radiation, 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 specimens are exposed to fluorescent UV lamps under controlled environmental conditions (temperature, humidity and/or water). Different types of fluorescent UV lamp may 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 4892-1.
Kunststoffe - Künstliches Bestrahlen oder Bewittern in Geräten - Teil 3: UV-Leuchtstofflampen (ISO 4892-3:2006)
Dieser Teil von EN ISO 4892 legt Verfahren fest, bei denen Probekörper in einem Gerät einer UV -Leuchtstofflampenstrahlung, Wärme und Wasser ausgesetzt werden, um die Bewitterungseffekte nachzubilden, die auftreten, wenn Werkstoffe in realen, beim Endgebrauch vorzufindenden Umgebungen der Globalstrahlung oder Globalstrahlung hinter Fensterglas ausgesetzt sind.
Die Probekörper werden bei geregelten Umgebungsbedingungen (Temperatur, Luftfeuchte und/oder Benässung) UV-Leuchtstofflampenstrahlung ausgesetzt. Um alle Anforderungen für das Prüfen unterschiedlicher Werkstoffe zu erfüllen, können verschiedene Typen UV-Leuchtstofflampen verwendet werden.
Die Vorbereitung der Probekörper und die Auswertung der Ergebnisse werden in anderen, für bestimmte Werkstoffe vorgesehenen ISO-Dokumenten behandelt.
Eine allgemeine Anleitung ist in ISO 4892-1 gegeben.
ANMERKUNG Die Beanspruchung von Beschichtungsstoffen mit UV-Leuchtstofflampenstrahlung ist in EN ISO 11507 [4] beschrieben.
Plastiques - Méthodes d'exposition a des sources lumineuses de laboratoire - Partie 3: Lampes fluorescentes UV (ISO 4892-3:2006)
L'ISO 4892:2006 spécifie des méthodes pour l'exposition d'éprouvettes à des rayonnements fluorescents UV et à un appareillage à l'eau pour reproduire les effets du vieillissement qui interviennent lorsque des matériaux sont exposés à la lumière du jour dans des environnements d'utilisation finale réelle, ou à la lumière du jour 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.
Polimerni materiali – Metode izpostavljanja laboratorijskim virom svetlobe – 3. del: Fluorescentne UV-svetilke (ISO 4892-3:2006)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 4892-3:2006
01-julij-2006
1DGRPHãþD
SIST EN ISO 4892-3:2000
Polimerni materiali – Metode izpostavljanja laboratorijskim virom svetlobe – 3. del:
Fluorescentne UV-svetilke (ISO 4892-3:2006)
Plastics - Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps
(ISO 4892-3:2006)
Kunststoffe - Künstliches Bestrahlen oder Bewittern in Geräten - Teil 3: UV-
Leuchtstofflampen (ISO 4892-3:2006)
Plastiques - Méthodes d'exposition a des sources lumineuses de laboratoire - Partie 3:
Lampes fluorescentes UV (ISO 4892-3:2006)
Ta slovenski standard je istoveten z: EN ISO 4892-3:2006
ICS:
83.080.01
SIST EN ISO 4892-3:2006 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
EUROPEAN STANDARD
EN ISO 4892-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2006
ICS 83.080.01 Supersedes EN ISO 4892-3:1999
English Version
Plastics - Methods of exposure to laboratory light sources - Part
3: Fluorescent UV lamps (ISO 4892-3:2006)
Plastiques - Méthodes d'exposition à des sources Kunststoffe - Künstliches Bestrahlen oder Bewittern in
lumineuses de laboratoire - Partie 3: Lampes fluorescentes Geräten - Teil 3: UV-Leuchtstofflampenstrahlung (ISO
UV (ISO 4892-3:2006) 4892-3:2006)
This European Standard was approved by CEN on 6 February 2006.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4892-3:2006: E
worldwide for CEN national Members.
---------------------- Page: 2 ----------------------
EN ISO 4892-3:2006 (E)
Foreword
This document (EN ISO 4892-3:2006) has been prepared by Technical Committee ISO/TC 61
"Plastics" in collaboration with Technical Committee CEN/TC 249 "Plastics", the secretariat of
which is held by IBN.
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 August 2006, and conflicting national
standards shall be withdrawn at the latest by August 2006.
This document supersedes EN ISO 4892-3:1999.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Endorsement notice
The text of ISO 4892-3:2006 has been approved by CEN as EN ISO 4892-3:2006 without any
modifications.
2
---------------------- Page: 3 ----------------------
INTERNATIONAL ISO
STANDARD 4892-3
Second edition
2006-02-15
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
Reference number
ISO 4892-3:2006(E)
©
ISO 2006
---------------------- Page: 4 ----------------------
ISO 4892-3:2006(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
© ISO 2006
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2006 – All rights reserved
---------------------- Page: 5 ----------------------
ISO 4892-3:2006(E)
Contents Page
Foreword. iv
1 Scope . 1
2 Normative references . 1
3 Principle. 1
4 Apparatus . 2
4.1 Laboratory light source. 2
4.2 Test chamber. 5
4.3 Radiometer . 5
4.4 Black-standard/black-panel thermometer.5
4.5 Wetting and humidity . 5
4.6 Specimen holders. 6
4.7 Apparatus to assess changes in properties . 6
5 Test specimens . 6
6 Test conditions . 6
6.1 Radiation. 6
6.2 Temperature . 6
6.3 Relative humidity of chamber air . 7
6.4 Condensation and spray cycles. 7
6.5 Cycles with dark periods . 7
6.6 Sets of exposure conditions. 7
7 Procedure . 8
7.1 General. 8
7.2 Mounting the test specimens . 8
7.3 Exposure. 9
7.4 Measurement of radiant exposure . 9
7.5 Determination of changes in properties after exposure. 9
8 Exposure report . 9
Annex A (informative) Spectral distribution of radiation for typical fluorescent UV lamps . 10
Bibliography . 14
© ISO 2006 – All rights reserved iii
---------------------- Page: 6 ----------------------
ISO 4892-3:2006(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 4892-3 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 6, Ageing,
chemical and environmental resistance.
This second edition cancels and replaces the first edition (ISO 4892-3:1994), which has been technically
revised.
ISO 4892 consists of the following parts, under the general title Plastics — Methods of exposure to laboratory
light sources:
⎯ Part 1: General guidance
⎯ Part 2: Xenon-arc lamps
⎯ Part 3: Fluorescent UV lamps
⎯ Part 4: Open-flame carbon-arc lamps
iv © ISO 2006 – All rights reserved
---------------------- Page: 7 ----------------------
INTERNATIONAL STANDARD ISO 4892-3:2006(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 reproduce the weathering effects that occur when materials are exposed in actual
end-use environments to daylight, or to daylight 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 may 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 4892-1.
[4]
NOTE Fluorescent UV lamp exposures for paints, varnishes and other coatings are described in ISO 11507 .
2 Normative references
The following referenced documents are indispensable for the application 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
daylight under glass, natural weathering or laboratory light sources
ISO 4892-1, Plastics — Methods of exposure to laboratory light sources — Part 1: General guidance
3 Principle
3.1 Fluorescent UV lamps, when properly maintained, can be used to simulate the spectral irradiance of
daylight in the ultraviolet (UV) region of the spectrum.
3.2 Specimens are exposed to various levels of UV radiation, heat and moisture (see 3.4) under controlled
environmental conditions.
3.3 The exposure conditions may be varied by selection of:
a) The type of fluorescent lamp.
b) The irradiance level.
c) The temperature during the light exposure.
© ISO 2006 – All rights reserved 1
---------------------- Page: 8 ----------------------
ISO 4892-3:2006(E)
d) The relative humidity of the chamber air during the light and dark exposures, when test conditions
requiring control of humidity are used.
NOTE Commercial fluorescent UV devices usually do not provide means of relative humidity control.
e) The type of wetting (see 3.4).
f) The wetting temperature and cycle.
g) The timing of the light/dark cycle.
3.4 Wetting is usually produced by condensation of water vapour onto the exposed specimen surface or by
spraying the test specimens with demineralized/deionized water.
3.5 The procedure(s) may include measurement of the irradiance and the radiant exposure in the plane of
the specimen.
3.6 It is recommended that a similar material of known performance (a control) be exposed simultaneously
with the test specimens to provide a standard for comparative purposes.
3.7 Intercomparison of results obtained from specimens exposed in different apparatus or to different types
of lamp should not be made unless an appropriate statistical relationship has been established between the
different types of equipment for the material to be tested.
4 Apparatus
4.1 Laboratory light source
4.1.1 Fluorescent UV lamps are fluorescent lamps in which radiant emission in the ultraviolet region of the
spectrum, i.e. below 400 nm, makes up at least 80 % of the total light output. There are three types of
fluorescent UV lamp used in this part of ISO 4892:
⎯ Type 1A (UVA-340) fluorescent UV lamp: These lamps have a radiant emission below 300 nm of less
than 2 % of the total light output, have an emission peak at 343 nm, and are more commonly identified as
UVA-340 for simulation of daylight from 300 nm to 340 nm (see Table 1, column A.1). Figure A.1 of
Annex A is a graph of spectral irradiance from 250 nm to 400 nm of a typical type 1A (UVA-340)
fluorescent lamp compared to daylight. If specified and agreed upon by all parties, a combination of
fluorescent UVA lamps may also be used (see Table 1, column A.2). When combinations of lamps with
different spectral emissions are used, provision shall be made to ensure the uniformity of the spectral
irradiance at the surface of the specimens, e.g. by continuous repositioning of the specimens around the
lamp array.
⎯ Type 1B (UVA-351) fluorescent UV lamp: These lamps have a radiant emission below 300 nm of less
than 2 % of the total light output, have a peak emission at 353 nm, and are more commonly identified as
UVA-351 for simulation of the UV portion of daylight behind window glass (see Table 2). Figure A.2 of
Annex A is a graph of spectral irradiance from 250 nm to 400 nm of a typical type 1B (UVA-351)
fluorescent UV lamp compared to daylight filtered by window glass.
⎯ Type 2 (UVB-313) fluorescent UV lamp: These lamps are more commonly identified as UVB-313 and
have a radiant emission below 300 nm that is more than 10 % of the total output and a peak emission at
313 nm (see Table 3). Figure A.3 of Annex A is a graph of the spectral irradiance from 250 nm to 400 nm
of two typical type 2 (UVB-313) fluorescent lamps compared to daylight. Type 2 (UVB-313) lamps may be
used only by agreement between the parties concerned. Such agreement shall be stated in the test report.
NOTE 1 Type 2 (UVB-313) lamps have a spectral distribution of radiation which peaks near the 313 nm mercury line
and may emit radiation down to λ = 254 nm, which can initiate ageing processes that never occur in end-use environments.
NOTE 2 The solar spectral irradiance for a number of different atmospheric conditions is described in CIE Publication
[1]
No. 85 . The benchmark daylight used in this part of ISO 4892 is from Table 4 in CIE Publication No. 85:1989.
2 © ISO 2006 – All rights reserved
---------------------- Page: 9 ----------------------
ISO 4892-3:2006(E)
4.1.2 Unless otherwise specified, type 1A (UVA-340) fluorescent UV lamps or corresponding type 1A
fluorescent UV lamp combinations shall be used to simulate the UV part of daylight (see Table 4, method A).
Unless otherwise specified, type 1B (UVA-351) lamps shall be used to simulate the UV part of daylight
through window glass (see Table 4, method B).
4.1.3 Fluorescent lamps age significantly with extended use. If an automatic irradiance control system is not
used, follow the apparatus manufacturer’s instructions on the procedure necessary to maintain the desired
irradiance.
4.1.4 Irradiance uniformity shall be in accordance with the requirements specified in ISO 4892-1.
Requirements for periodic repositioning of specimens when irradiance within the exposure area is less than
90 % of the peak irradiance are described in ISO 4892-1.
a, b
Table 1 — Relative ultraviolet spectral irradiance for type 1A lamps for daylight UV (method A)
Type 1A (UVA-340) lamp Type 1A lamp combination
A.1 A.2
Spectral passband
c c c c
(λ = wavelength in nm) Minimum CIE No. 85:1989, Maximum Minimum CIE No. 85:1989, Maximum
d,e d,e
Table 4 Table 4
% % % % % %
λ < 290 0 0,01 0 0
290 u λ u 320 5,9 5,4 9,3 4 5,4 7
320 < λ u 360 60,9 38,2 65,5 48 38,2 56
360 < λ u 400 26,5 56,4 32,8 38 56,4 46
a
This table gives the irradiance in the given passband, expressed as a percentage of the total irradiance between 290 nm and
400 nm. To determine whether a specific type 1A (UVA-340) lamp meets the requirements of this table, the spectral irradiance from
250 nm to 400 nm shall be measured. Typically, this is done in 2 nm increments. The total irradiance in each passband is then summed
and divided by the total irradiance between 290 nm and 400 nm.
b
The minimum and maximum limits for type 1A (UVA-340) lamps in this table are based on more than 60 spectral irradiance
[2]
measurements with type 1A (UVA-340) lamps from different production lots and of various ages . The spectral irradiance data are for
lamps within the ageing recommendations of the apparatus manufacturer. As more spectral irradiance data become available, minor
changes in the limits are possible. The minimum and maximum limits are at least three sigma from the mean for all the measurements.
The range of the relative irradiance of fluorescent UV lamp combinations is determined by radiation measurements at about 50 locations
within the exposure area recommended by the apparatus manufacturer.
c
The minimum and maximum columns will not necessarily sum to 100 % because they represent the minima and maxima for the
measurement data used. For any individual spectral irradiance distribution, the percentages calculated for the passbands in this table
will sum to 100 %. For any individual type 1A (UVA-340) fluorescent lamp, the calculated percentage in each passband shall fall within
the minimum and maximum limits given. Test results can be expected to differ between exposures using type 1A (UVA-340) lamps in
which the spectral irradiance differs by as much as that allowed by the tolerances. Contact the manufacturer of the fluorescent UV
apparatus for specific spectral irradiance data for the type 1A (UVA-340) lamp used.
d
The data from Table 4 in CIE Publication No. 85:1989 is the global solar irradiance on a horizontal surface for an air mass of 1,0,
an ozone column of 0,34 cm at STP, 1,42 cm of precipitable water vapour and a spectral optical depth of aerosol extinction of 0,1 at
500 nm. These data are provided for reference purposes only and are intended to serve as a target.
e
For the solar spectrum represented by Table 4 in CIE No. 85:1989, the UV irradiance (290 nm to 400 nm) is 11 % a
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.