EN ISO 14631:2021

SLOVENSKI STANDARD
01-september-2021
Nadomešča:
SIST EN ISO 14631:2000
Ekstrudirane plošče iz modificiranega polistirena, odpornega proti udarcem (PS-I)
- Zahteve in preskusne metode (ISO 14631:2021)
Extruded sheets of impact-modified polystyrene (PS-I) - Requirements and test methods
(ISO 14631:2021)
Extrudierte Tafeln aus schlagzäh-modifiziertem Polystyrol (PS-I) - Anforderungen und
Prüfverfahren (ISO 14631:2021)
Plaques extrudées en polystyrène modifié résistant au choc (PS-I) - Prescriptions et
méthodes d'essai (ISO 14631:2021)
Ta slovenski standard je istoveten z: EN ISO 14631:2021
ICS:
83.140.10 Filmi in folije Films and sheets
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 14631
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2021
EUROPÄISCHE NORM
ICS 83.140.10 Supersedes EN ISO 14631:1999
English Version
Extruded sheets of impact-modified polystyrene (PS-I) -
Requirements and test methods (ISO 14631:2021)
Plaques extrudées en polystyrène modifié résistant au Extrudierte Tafeln aus schlagzäh-modifiziertem
choc (PS-I) - Exigences et méthodes d'essai (ISO Polystyrol (PS-I) - Anforderungen und Prüfverfahren
14631:2021) (ISO 14631:2021)
This European Standard was approved by CEN on 10 June 2021.

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 14631:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 14631:2021) 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.
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 December 2021, and conflicting national standards
shall be withdrawn at the latest by December 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 14631:1999.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, 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 14631:2021 has been approved by CEN as EN ISO 14631:2021 without any modification.

INTERNATIONAL ISO
STANDARD 14631
Second edition
2021-06
Extruded sheets of impact-modified
polystyrene (PS-I) — Requirements
and test methods
Plaques extrudées en polystyrène modifié résistant au choc (PS-I) —
Exigences et méthodes d'essai
Reference number
ISO 14631:2021(E)
©
ISO 2021
ISO 14631:2021(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: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

ISO 14631:2021(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Material . 2
5 Requirements . 2
5.1 Appearance . 2
5.2 Dimensional tolerances . 2
5.2.1 Thickness . 2
5.2.2 Length and width . 2
5.2.3 Rectangularity . 3
5.2.4 Bow of sheets in rolled form . 3
5.3 Properties . 3
5.3.1 General. 3
5.3.2 Mechanical and thermal properties . 4
5.3.3 Behaviour after heating . 4
5.3.4 Physiological behaviour . . 5
6 Test methods . 5
6.1 Test specimens . 5
6.1.1 Preparation of test specimens . 5
6.1.2 Conditioning . 5
6.1.3 Testing . 5
6.2 Delivery condition . 5
6.3 Appearance . 5
6.4 Dimensions . 6
6.4.1 Thickness (h) . . 6
6.4.2 Length (l) and width (b) . 6
6.4.3 Rectangularity . 6
6.4.4 Bow of sheets in rolled form . 6
6.5 Density . 6
6.6 Mechanical properties . 6
6.6.1 Tensile stress at yield (σ ) . 6
Y
6.6.2 Nominal tensile strain at break (ε ) . 6
tB
6.6.3 Modulus of elasticity in tension (E ) . 6
t
6.6.4 Charpy impact strength of unnotched specimens (a ) . 7
cU
6.6.5 Charpy impact strength of notched specimens (a ) . 7
cN
6.6.6 Multiaxial impact strength . 7
6.6.7 Ball indentation hardness . 7
6.7 Thermal properties . 7
6.7.1 Vicat softening temperature . 7
6.7.2 Determination of shrinkage after heating. 7
7 Designation . 9
7.1 Example for PS-I-sheets . 9
7.2 Example for PS-I sheets in roll form . 9
8 Marking . 9
Annex A (informative) Additional guide values .10
Bibliography .
...