EN ISO 17855-2:2024

SLOVENSKI STANDARD
01-januar-2025
Polimerni materiali - Polietilenski (PE) materiali za oblikovanje in ekstrudiranje - 2.
del: Priprava preskušancev in ugotavljanje lastnosti (ISO 17855-2:2024)
Plastics - Polyethylene (PE) moulding and extrusion materials - Part 2: Preparation of
test specimens and determination of properties (ISO 17855-2:2024)
Kunststoffe - Polyethylen (PE)-Formmassen - Teil 2: Herstellung von Probekörpern und
Bestimmung von Eigenschaften (ISO 17855-2:2024)
Plastiques - Matériaux à base de polyéthylène (PE) pour moulage et extrusion - Partie 2:
Préparation des éprouvettes et détermination des propriétés (ISO 17855-2:2024)
Ta slovenski standard je istoveten z: EN ISO 17855-2:2024
ICS:
83.080.20 Plastomeri Thermoplastic materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 17855-2
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2024
EUROPÄISCHE NORM
ICS 83.080.20 Supersedes EN ISO 17855-2:2016
English Version
Plastics - Polyethylene (PE) moulding and extrusion
materials - Part 2: Preparation of test specimens and
determination of properties (ISO 17855-2:2024)
Plastiques - Matériaux à base de polyéthylène (PE) Kunststoffe - Polyethylen (PE)-Formmassen - Teil 2:
pour moulage et extrusion - Partie 2: Préparation des Herstellung von Probekörpern und Bestimmung von
éprouvettes et détermination des propriétés (ISO Eigenschaften (ISO 17855-2:2024)
17855-2:2024)
This European Standard was approved by CEN on 18 November 2024.

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, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17855-2:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 17855-2:2024) 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 SIS.
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 May 2025, and conflicting national standards shall be
withdrawn at the latest by May 2025.
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 17855-2:2016.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 17855-2:2024 has been approved by CEN as EN ISO 17855-2:2024 without any
modification.
International
Standard
ISO 17855-2
Second edition
Plastics — Polyethylene (PE)
2024-11
moulding and extrusion
materials —
Part 2:
Preparation of test specimens and
determination of properties
Plastiques — Matériaux à base de polyéthylène (PE) pour
moulage et extrusion —
Partie 2: Préparation des éprouvettes et détermination des
propriétés
Reference number
ISO 17855-2:2024(en) © ISO 2024

ISO 17855-2:2024(en)
© ISO 2024
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 17855-2:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 3
4 Preparation of test specimens . 3
4.1 General .3
4.2 Treatment of the material before moulding .3
4.3 Injection moulding .3
4.4 Compression moulding.4
5 Conditioning of test specimens . 4
6 Determination of properties . 5
Bibliography . 9

iii
ISO 17855-2:2024(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 document 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 Technical Committee ISO/TC 61, Plastics, Subcommittee
SC9, Thermoplastic materials, 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 second edition cancels and replaces the first edition (ISO 17855-2:2016), which has been technically
revised.
The main changes are as follows:
— ISO 16241, ISO 18488, ISO 18489 and ISO 22088-2 have been integrated to Clause 2;
— Table 1 Conditions for injection moulding of test specimens have been changed;
— Table 2 Conditions for compression moulding of test specimens have been changed;
— properties from ISO 16241, ISO 18488, ISO 18489 and ISO 22088-2 have been integrated in Table 4;
— Annex A (informative) has been deleted.
A list of all parts in the ISO 17855 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
International Standard ISO 17855-2:2024(en)
Plastics — Polyethylene (PE) moulding and extrusion
materials —
Part 2:
Preparation of test specimens and determination of
properties
1 Scope
This document specifies the methods of preparation of test specimens and the test methods for determining
the properties of polyethylene (PE) moulding and extrusion materials. It gives requirements for handling
test material and for conditioning both the test material before moulding and the specimens before testing.
This document specifies the procedures and conditions for the preparation of test specimens and procedures
for measuring properties of the materials from which these specimens are made. Properties and test
methods that are suitable and essential to characterize PE moulding and extrusion materials are listed.
The properties in this document have been selected from the general test methods in ISO 10350-1. Other
test methods in wide use for or of particular significance to PE moulding and extrusion materials are also
included in this document, as are the designatory properties specified in ISO 17855-1. Properties of slow
crack growth, etc. are specified in documents of polyethylene (PE) materials for piping systems.
The methods of preparation and conditioning, the specimen dimensions and the test procedures specified
herein are used to obtain reproducible and comparable test results. Values determined will not necessarily be
identical to those obtained using specimens of different dimensions or prepared using different procedures.
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 62, Plastics — Determination of water absorption
ISO 75-2, Plastics — Determination of temperature of deflection under load — Part 2: Plastics and ebonite
ISO 178, Plastics — Determination of flexural properties
ISO 179-1, Plastics — Determination of Charpy impact properties — Part 1: Non-instrumented impact te
...