EN ISO 8067:2018

Flexible cellular polymeric materials - Determination of tear strength (ISO 8067:2018)

This document specifies two methods for the determination of the tear strength of flexible cellular polymeric materials:
—          method A, using a trouser test piece;
—          method B, using an angle test piece without a nick.

Flexible Polymer-Schaumstoffe - Bestimmung des Weiterreißwiderstands (ISO 8067:2018)

Schaumstoffen fest:
- Verfahren A, bei dem ein Hosen-Probekörper verwendet wird;
- Verfahren B, bei dem ein Winkel-Probekörper ohne Einschnitt verwendet wird.

Matériaux polymères alvéolaires souples - Détermination de la résistance au déchirement (ISO 8067:2018)

Le présent document spécifie deux méthodes pour la détermination de la résistance au déchirement des matériaux polymères alvéolaires souples:
—          la méthode A, utilisant une éprouvette pantalon;
—          la méthode B, utilisant une éprouvette angulaire sans entaille.

Mehki penjeni polimerni materiali - Ugotavljanje pretržne trdnosti (ISO 8067:2018)

Ta dokument določa dve metodi za ugotavljanje pretržne trdnosti prožnih celičnih polimernih materialov:
– metoda A z uporabo hlačnega preskušanca;
– metoda B z uporabo kotnega preskušanca brez utora.

General Information

• Status: Published
• Publication Date: 21-Aug-2018
• Withdrawal Date: 27-Feb-2019
• ICS: 83.100 - Cellular materials
• Technical Committee: CEN/TC 249 - Plastics
• Drafting Committee: CEN/TC 249 - Plastics
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 22-Aug-2018
• Completion Date: 22-Aug-2018
• Ref Project: SIST EN ISO 8067:2018 - Flexible cellular polymeric materials - Determination of tear strength (ISO 8067:2018)

Relations

• Replaces: EN ISO 8067:2008 - Flexible cellular polymeric materials - Determination of tear strength (ISO 8067:2008)
• Effective Date: 29-Aug-2018
• Revised: prEN ISO 8067 - Flexible cellular polymeric materials - Determination of tear strength (ISO/DIS 8067:2025)
• Effective Date: 13-Mar-2024

Overview

EN ISO 8067:2018 (ISO 8067:2018) specifies laboratory methods for determining the tear strength of flexible cellular polymeric materials (soft foam plastics and rubbers). Adopted by CEN as a European Standard in 2018, it replaces the 2008 edition and defines two test geometries and full test conditions to ensure repeatable, comparable tear-strength results.

Key Topics and Requirements

• Two prescribed methods
  • Method A - Trouser test piece: rectangular test piece with a 45–55 mm cut and a marked 25 mm tear length; tear direction and foam-rise orientation are specified.
  • Method B - Angle test piece (no nick): cut from sheet thickness 10–15 mm using a die as specified in the standard.
• Apparatus
  • Use a tensile-testing machine capable of indicating rupture force; automatic recording preferred.
  • Machine accuracy: class 2 or better per ISO 7500-1.
• Test speeds
  • General: 50 mm/min to 500 mm/min.
  • Referee tests: (50 ± 5) mm/min.
• Number of test pieces
  • Minimum three specimens; additional specimens where result spread or tear progression requires.
• Conditioning
  • Test not less than 72 h after manufacture unless 16 h or 48 h results match within ±10 %.
  • Standard atmospheres: (23 ± 2) °C, (50 ± 5) % RH or (27 ± 2) °C, (65 ± 5) % RH. Shorter conditioning allowed for quality control (min. 12 h after manufacture; min. 6 h conditioning).
• Specimen preparation and orientation
  • Test pieces may be with or without skin; orientation relative to the predominant foam‑rise direction must be recorded.
• Measurement
  • Thickness measurement per ISO 1923; expression of tear strength as maximum force per unit thickness; test reporting requirements included.

Applications and Who Uses It

• Quality control in foam and flexible polymer manufacturing - verify tear performance batch-to-batch.
• R&D and product development - compare formulations, cell structure, or skin vs. core behavior.
• Third‑party testing laboratories and certification bodies - provide standardized, comparable data for specs and compliance.
• Material selection for footwear, automotive interiors, cushioning, seals and gaskets, acoustic/thermal insulation where tear resistance of foams is critical.

Related Standards

• ISO 1923 - determination of linear dimensions of cellular plastics and rubbers (thickness measurement).
• ISO 7500-1 - calibration and verification of force-measuring systems for tensile testing machines.

EN ISO 8067:2018 is essential for consistent evaluation of tear strength in flexible cellular materials and enables reliable comparisons across suppliers and applications.

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2018
1DGRPHãþD
SIST EN ISO 8067:2009
Mehki penjeni polimerni materiali - Ugotavljanje pretržne trdnosti (ISO 8067:2018)
Flexible cellular polymeric materials - Determination of tear strength (ISO 8067:2018)
Flexible Polymer-Schaumstoffe - Bestimmung des Weiterreißwiderstands (ISO
8067:2018)
Matériaux polymères alvéolaires souples - Détermination de la résistance au
déchirement (ISO 8067:2018)
Ta slovenski standard je istoveten z: EN ISO 8067:2018
ICS:
83.100 Penjeni polimeri Cellular materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 8067
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2018
EUROPÄISCHE NORM
ICS 83.100 Supersedes EN ISO 8067:2008
English Version
Flexible cellular polymeric materials - Determination of
tear strength (ISO 8067:2018)
Matériaux polymères alvéolaires souples - Flexible Polymer-Schaumstoffe - Bestimmung des
Détermination de la résistance au déchirement (ISO Weiterreißwiderstands (ISO 8067:2018)
8067:2018)
This European Standard was approved by CEN on 20 August 2018.

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, 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. EN ISO 8067:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
European foreword
This document (EN ISO 8067:2018) has been prepared by Technical Committee ISO/TC 45 "Rubber and
rubber products" 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 February 2019, and conflicting national standards
shall be withdrawn at the latest by February 2019.
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 8067:2008.
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, 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 the United Kingdom.
Endorsement notice
The text of ISO 8067:2018 has been approved by CEN as EN ISO 8067:2018 without any modification.

INTERNATIONAL ISO
STANDARD 8067
Third edition
2018-07
Flexible cellular polymeric
materials — Determination of tear
strength
Matériaux polymères alvéolaires souples — Détermination de la
résistance au déchirement
Reference number
ISO 8067:2018(E)
©
ISO 2018
ISO 8067:2018(E)
© ISO 2018
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
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Phone: [phone]
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Published in Switzerland
ii © ISO 2018 – All rights reserved

ISO 8067:2018(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Apparatus . 1
5 Test pieces . 1
5.1 General . 1
5.2 Trouser test piece for method A . 2
5.3 Angle test piece for method B . 2
6 Number of test pieces . 3
7 Conditioning . 4
8 Procedure. 4
8.1 General . 4
8.2 Method A . 4
8.3 Method B . 5
9 Expression of results . 6
10 Test report . 6
Annex A (informative) Precision comparison for the two types of test piece .7
Bibliography . 9
ISO 8067:2018(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
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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 45, Rubber and rubber products,
Subcommittee SC 4, Products (other than hoses).
This third edition cancels and replaces the second edition (ISO 8067:2008), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— test pieces with skin has been added in 5.1
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

INTERNATIONAL STANDARD ISO 8067:2018(E)
Flexible cellular polymeric materials — Determination of
tear st
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