SIST-TP CEN ISO/TR 18486:2019

SLOVENSKI STANDARD
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SIST-TP CEN ISO/TR 18486:2017
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Plastics - Parameters comparing the spectral irradiance of a laboratory light source for
weathering applications to a reference solar spectral irradiance (ISO/TR 18486:2018)
Kunststoffe - Berechnung der Qualitätsanpassung der spektralen Verteilung eines
Sonnensimulators mit Bezug auf eine referenzspektrale Verteilung der Sonnenstrahlung
(ISO/TR 18486:2018)
Plastiques - Paramètres de comparaison de la distribution spectrale d'une source de
lumière de laboratoire pour les applications de vieillissement et d'une distribution
spectrale solaire de référence (ISO/TR 18486:2018)
Ta slovenski standard je istoveten z: CEN ISO/TR 18486:2018
ICS:
83.080.01 Polimerni materiali na Plastics in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN ISO/TR 18486
TECHNICAL REPORT
RAPPORT TECHNIQUE
December 2018
TECHNISCHER BERICHT
ICS 83.080.01 Supersedes CEN ISO/TR 18486:2017
English Version
Plastics - Parameters comparing the spectral irradiance of
a laboratory light source for weathering applications to a
reference solar spectral irradiance (ISO/TR 18486:2018)
Plastiques - Paramètres de comparaison de la Kunststoffe - Berechnung der Qualitätsanpassung der
distribution spectrale d'une source de lumière de spektralen Verteilung eines Sonnensimulators mit
laboratoire pour les applications de vieillissement et Bezug auf eine referenzspektrale Verteilung der
d'une distribution spectrale solaire de référence Sonnenstrahlung (ISO/TR 18486:2018)
(ISO/TR 18486:2018)
This Technical Report was approved by CEN on 3 December 2018. It has been drawn up by the Technical Committee CEN/TC
249.
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. CEN ISO/TR 18486:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (CEN ISO/TR 18486:2018) 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 NBN.
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 CEN ISO/TR 18486:2017.
Endorsement notice
The text of ISO/TR 18486:2018 has been approved by CEN as CEN ISO/TR 18486:2018 without any
modification.
TECHNICAL ISO/TR
REPORT 18486
Second edition
2018-12
Plastics — Parameters comparing the
spectral irradiance of a laboratory
light source for weathering
applications to a reference solar
spectral irradiance
Plastiques — Paramètres de comparaison de la distribution spectrale
d'une source de lumière de laboratoire pour les applications de
vieillissement et d'une distribution spectrale solaire de référence
Reference number
ISO/TR 18486:2018(E)
©
ISO 2018
ISO/TR 18486:2018(E)
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
ii © ISO 2018 – All rights reserved

ISO/TR 18486:2018(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 1
5 Significance . 2
6 Requirements . 2
7 Calculation methods . 2
7.1 Characterizing parameter for a wavelength range . 2
7.1.1 Choice of the wavelength range . 2
7.1.2 Scaling condition . 3
7.1.3 Characterizing parameter f for a wavelength range . 4
λ1-λ2
7.2 Characterizing parameter for a known action spectrum . 4
7.2.1 Choice of the wavelength range with action spectrum . 4
7.2.2 Scaling condition with action spectrum . 4
7.2.3 Characterizing parameter f with action spectrum . 5
s(λ)1-s(λ)2
Annex A (informative) Examples for parameters of some commercially available solar
simulators . 6
Bibliography . 8
ISO/TR 18486:2018(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 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
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
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.
This second edition cancels and replaces the first edition (ISO/TR 18486:2016), which has been
technically revised. The main changes compared to the previous edition are as follows:
— Figures 1, 2 and A.1: the keys and their key descriptions have been corrected;
— the document has been editorially revised.
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 © ISO 2018 – All rights reserved

ISO/TR 18486:2018(E)
Introduction
Laboratory radiation sources generate radiation which is intended to simulate a defined “reference
sun” as perfect as possible, where the fitting to the spectral irradiance in the materials sensitive range
is most important. So far, the fitting is described verbally only (e.g. standards concerning artificial
weathering) and the user decides for himself if the spectral irradiance E(λ) indicated by the producer
of the laboratory radiation source agrees suitable enough with the “reference sun” for his specific
application or, occasionally, the classification describes the fitting to a wanted “reference sun” only
insufficiently (e.g. for standard
...