prEN ISO 877-2

SLOVENSKI STANDARD
01-september-2024
Polimerni materiali - Metode izpostavitve vremenskim vplivom - 2. del: Vremenski
vplivi z dnevno svetlobo, filtrirano skozi steklo (ISO/DIS 877-2:2024)
Plastics - Methods of exposure to solar radiation - Part 2: Direct weathering and
exposure behind window glass (ISO/DIS 877-2:2024)
Kunststoffe - Freibewitterung - Teil 2: Bewitterung und Bestrahlen hinter Fensterglas
(ISO/DIS 877-2:2024)
Plastiques - Méthodes d'exposition au rayonnement solaire - Partie 2: Exposition directe
et exposition derrière une vitre en verre (ISO/DIS 877-2:2024)
Ta slovenski standard je istoveten z: prEN ISO 877-2
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.

DRAFT
International
Standard
ISO/DIS 877-2
ISO/TC 61/SC 6
Plastics — Methods of exposure to
Secretariat: DIN
solar radiation —
Voting begins on:
Part 2: 2024-07-18
Direct weathering and exposure
Voting terminates on:
2024-10-10
behind window glass
Plastiques — Méthodes d'exposition au rayonnement solaire —
Partie 2: Exposition directe et exposition derrière une vitre en
verre
ICS: 83.080.01
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
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Reference number
ISO/DIS 877-2:2024(en)
DRAFT
ISO/DIS 877-2:2024(en)
International
Standard
ISO/DIS 877-2
ISO/TC 61/SC 6
Plastics — Methods of exposure to
Secretariat: DIN
solar radiation —
Voting begins on:
Part 2:
Direct weathering and exposure
Voting terminates on:
behind window glass
Plastiques — Méthodes d'exposition au rayonnement solaire —
Partie 2: Exposition directe et exposition derrière une vitre en verre
ICS: 83.080.01
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2024
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
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NATIONAL REGULATIONS.
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Published in Switzerland Reference number
ISO/DIS 877-2:2024(en)
ii
ISO/DIS 877-2:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 1
5.1 General requirements .1
5.2 Test fixture for exposures using method A .2
5.3 Test fixture for exposures using method B .2
5.4 Apparatus for measurement of climatic factors .3
6 Test specimens . 3
7 Conditions of exposure of the test specimens . 4
7.1 Exposure aspect .4
7.2 Exposure site.4
8 Exposure stages . 4
8.1 General .4
8.2 Duration of exposure .4
8.3 Solar radiant exposure .5
9 Procedure . 5
9.1 Mounting of test specimens .5
9.1.1 General .5
9.1.2 Method A . . .5
9.1.3 Method B .5
9.2 Mounting of reference materials (if used) .5
9.3 Climatic observations .5
9.4 Exposure of test specimens .5
9.4.1 General .5
9.4.2 Method A . . .5
9.4.3 Method B . .5
9.5 Determination of changes in properties .6
10 Expression of results . 6
10.1 Determination of changes in properties .6
10.2 Climatic conditions .6
11 Test report . 6
Bibliography . 7

iii
ISO/DIS 877-2:2024(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, SC 6, Ageing, chemical and
environmental resistance.
This second edition cancels and replaces the first edition (ISO 877-2:2009), which has been technically
revised.
The main changes are as follows:
— addition of a requirement for the area beneath and in the vicinity of racks in 5.1;
— clarification that no shadow of nearby objects shall fall on the specimens in 7.2;
— addition of Bibliography to include reference from 5.3, NOTE 2;
— deletion of NOTE in 5.4.
A list of all parts in the ISO 877 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.

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