SIST EN ISO 3037:2023
(Main)Corrugated fibreboard - Determination of edgewise crush resistance (non-waxed edge method) (ISO 3037:2022)
Corrugated fibreboard - Determination of edgewise crush resistance (non-waxed edge method) (ISO 3037:2022)
This document specifies a non-waxed edge method for the determination of the edgewise crush resistance of corrugated fibreboard. The force is applied in the direction of the flute axis.
This method is applicable to single-wall (double-faced), double-wall, and triple-wall corrugated fibreboard.
It is applicable to all corrugated fibreboard flute types if no buckling and/or tipping occurs during measurement. This method is also applicable to test samples taken from corrugated cases and other converted products.
Wellpappe - Bestimmung des Kantenstauchwiderstandes (Verfahren für ungewachste Kanten) (ISO 3037:2022)
Dieses Dokument legt ein Verfahren für ungewachste Kanten für die Bestimmung des Kantenstauch-widerstandes von Wellpappe fest. Die Kraft wird in der Richtung der Wellenachse aufgebracht.
Dieses Verfahren ist für einwellige (doppelseitige), zwei- und dreiwellige Wellpappe anwendbar.
Es ist für alle Wellenarten anwendbar, wenn während der Messung kein Beulen und/oder Kippen auftritt. Dieses Verfahren ist auch für Durchschnittsproben anwendbar, die von Wellkisten und anderen verarbeiteten Produkten entnommen wurden.
Carton ondulé - Détermination de la résistance à la compression sur chant (méthode sans enduction de cire) (ISO 3037:2022)
Le présent document spécifie une méthode sans enduction de cire permettant de déterminer la résistance à la compression sur chant du carton ondulé. La force est appliquée dans le sens de l’axe des cannelures.
Cette méthode est applicable au carton ondulé simple cannelure (double face), double cannelure et triple cannelure.
Elle concerne toutes les sortes de cannelures de cartons ondulés lorsque aucun flambage ni aucun basculement ne se produit au cours du mesurage, ainsi aux échantillons pour essai prélevés sur les caisses de carton ondulé et d’autres produits transformés.
Valoviti karton - Določanje robne odpornosti (metoda ECT) (ISO 3037:2022)
Ta dokument določa metodo nevoskanega roba za določanje robne odpornosti valovitega kartona. Sila deluje v smeri osi žlebiča.
Ta metoda se uporablja za enoplasten (dvoslojni), dvoplasten in triplasten valoviti karton.
Uporablja se za vse vrste žlebičev valovitega kartona, če pri merjenju ne pride do uklona in/ali nagiba. Ta metoda se uporablja tudi za preskusne vzorce valovite embalaže in drugih predelanih proizvodov.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 3037:2023
01-maj-2023
Nadomešča:
SIST EN ISO 3037:2013
Valoviti karton - Določanje robne odpornosti (metoda ECT) (ISO 3037:2022)
Corrugated fibreboard - Determination of edgewise crush resistance (non-waxed edge
method) (ISO 3037:2022)
Wellpappe - Bestimmung des Kantenstauchwiderstandes (Verfahren für ungewachste
Kanten) (ISO 3037:2022)
Carton ondulé - Détermination de la résistance à la compression sur chant (méthode
sans enduction de cire) (ISO 3037:2022)
Ta slovenski standard je istoveten z: EN ISO 3037:2022
ICS:
85.060 Papir, karton in lepenka Paper and board
SIST EN ISO 3037:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 3037:2023
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SIST EN ISO 3037:2023
EN ISO 3037
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2022
EUROPÄISCHE NORM
ICS 85.080.30 Supersedes EN ISO 3037:2013
English Version
Corrugated fibreboard - Determination of edgewise crush
resistance (non-waxed edge method) (ISO 3037:2022)
Carton ondulé - Détermination de la résistance à la Wellpappe - Bestimmung des
compression sur chant (méthode sans enduction de Kantenstauchwiderstandes (Verfahren für
cire) (ISO 3037:2022) ungewachste Kanten) (ISO 3037:2022)
This European Standard was approved by CEN on 25 November 2022.
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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3037:2022 E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 3037:2023
EN ISO 3037:2022 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 3037:2023
EN ISO 3037:2022 (E)
European foreword
This document (EN ISO 3037:2022) has been prepared by Technical Committee ISO/TC 6 "Paper, board
and pulps" in collaboration with Technical Committee CEN/TC 172 “Pulp, paper and board” the
secretariat of which is held by DIN.
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 June 2023, and conflicting national standards shall be
withdrawn at the latest by June 2023.
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 3037:2013.
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 3037:2022 has been approved by CEN as EN ISO 3037:2022 without any modification.
3
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SIST EN ISO 3037:2023
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SIST EN ISO 3037:2023
INTERNATIONAL ISO
STANDARD 3037
Sixth edition
2022-11
Corrugated fibreboard —
Determination of edgewise crush
resistance (non-waxed edge method)
Carton ondulé — Détermination de la résistance à la compression sur
chant (méthode sans enduction de cire)
Reference number
ISO 3037:2022(E)
© ISO 2022
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SIST EN ISO 3037:2023
ISO 3037:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022
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 2022 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 3037:2023
ISO 3037:2022(E)
Contents Page
Foreword .iv
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 2
4 Principle . 2
5 Apparatus . 2
6 Sampling . 2
7 Conditioning . 3
8 Preparation of test pieces .3
9 Procedure .4
10 Calculation . 4
11 Precision . 5
12 Test report . 5
Annex A (informative) Examples of suitable cutting devices . 6
Annex B (informative) Precision data . 7
Bibliography . 9
iii
© ISO 2022 – All rights reserved
---------------------- Page: 9 ----------------------
SIST EN ISO 3037:2023
ISO 3037:2022(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 6, Paper, board and pulps, Subcommittee
SC 2, Test methods and quality specifications for paper and board, in collaboration with the European
Committee for Standardization (CEN) Technical Committee CEN/TC 172, Pulp, paper and board, in
accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This sixth edition cancels and replaces the fifth edition (ISO 3037:2013), which has been technically
revised.
The main changes are as follows:
— the title has been changed from "Corrugated fibreboard - Determination of edgewise crush
resistance (unwaxed edge method)" to "Corrugated fibreboard - Determination of edgewise crush
resistance (non-waxed edge method)";
— the introduction has been updated to highlight the impact of edge effects and the incomparability of
different test methods;
— information about the corrugated fibreboard grades has been added to the scope;
— Clause 3 has been updated;
— Clause 6 has been revised;
— Clause 9 has been updated and a constant feed rate has been added;
— Clause 11 has been added to refer to precision data in Annex B;
— Clause 12 has been updated;
— Annex A has been revised;
— the bibliography has been updated.
iv
© ISO 2022 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 3037:2023
ISO 3037:2022(E)
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.
v
© ISO 2022 – All rights reserved
---------------------- Page: 11 ----------------------
SIST EN ISO 3037:2023
ISO 3037:2022(E)
Introduction
A variety of methods for the determination of edgewise crush resistance are in use in different parts of
the world. These can be classified into four groups as follows:
a) Those in which a carefully cut rectangular test piece is tested without any special treatment or
modification (e.g. this document).
b) Those in which the edges of the test piece to which the force is applied are waxed, to prevent the
test result being influenced by edge effects (e.g. ISO 13821).
c) Those in which the test piece edges are not waxed but the shape of the test piece is such that the
length is substantially reduced at a point midway between the loaded edges, in order to induce the
failure to occur away from those edges (e.g. JIS Z 0403-2).
d) Those in which carefully cut rectangular test pieces are tested with edges clamped to prevent the
result from being influenced by edges effects (e.g. TAPPI T 839).
The dimensions of the test piece vary from one group to the other and, in group c), the methods vary
in the shape and method of reducing the length, and in whether or not the test piece is held in a clamp
during crushing.
The methods might not give the same numerical results and experience has shown that results for the
four groups of test methods will not correlate. It can be shown that most of them can be used (at varying
levels of accuracy) to predict the top-to-bottom compression strength that will be achieved when the
board is properly converted into a transport package, provided that the formula to predict BCT values
from ECT results is based on data from the ECT method being used.
This document describes a method for group a). It is intended as a method for quality measurement and
quality specification purposes and is selected because it correlates with the top-to-bottom compression
strength of the final transport package and because it is the simplest and most operationally convenient
method, an important factor when large numbers of tests need to be conducted. However, it does not
measure the actual intrinsic compressive strength of the corrugated fibreboard, giving lower results
than most of the methods in groups b), c) and d). This systematic difference is due to edge effects.
Other methods can be used for other purposes, particularly when the object of the test is to study
fundamental structural characteristics of the package.
There are methods available for calculating the edgewise crush resistance from the compression
strength of the component papers.
vi
© ISO 2022 – All rights reserved
---------------------- Page: 12 ----------------------
SIST EN ISO 3037:2023
INTERNATIONAL STANDARD ISO 3037:2022(E)
Corrugated fibreboard — Determination of edgewise crush
resistance (non-waxed edge method)
1 Scope
This document specifies a non-waxed edge method for the determination of the edgewise crush
resistance of corrugated fibreboard. The force is applied in the direction of the flute axis.
This method is applicable to single-wall (double-faced), double-wall, and triple-wall corrugated
fibreboard.
It is applicable to all corrugated fibreboard flute types if no buckling and/or tipping occurs during
measurement. This method is also applicable to test samples taken from corrugated cases and other
converted products.
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 referen
...
SLOVENSKI STANDARD
oSIST prEN ISO 3037:2022
01-marec-2022
Valoviti karton - Določanje robne odpornosti (metoda ECT) (ISO/DIS 3037:2022)
Corrugated fibreboard - Determination of edgewise crush resistance (non-waxed edge
method) (ISO/DIS 3037:2022)
Wellpappe – Bestimmung des Kantenstauchwiderstandes (Verfahren für ungewachste
Kanten) (ISO/DIS 3037:2022)
Carton ondulé - Détermination de la résistance à la compression sur chant (méthode
sans enduction de cire) (ISO/DIS 3037:2022)
Ta slovenski standard je istoveten z: prEN ISO 3037
ICS:
85.060 Papir, karton in lepenka Paper and board
oSIST prEN ISO 3037:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 3037:2022
---------------------- Page: 2 ----------------------
oSIST prEN ISO 3037:2022
DRAFT INTERNATIONAL STANDARD
ISO/DIS 3037
ISO/TC 6/SC 2 Secretariat: SIS
Voting begins on: Voting terminates on:
2022-01-03 2022-03-28
Corrugated fibreboard — Determination of edgewise crush
resistance (non-waxed edge method)
ICS: 85.080.30
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 3037:2022(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2022
---------------------- Page: 3 ----------------------
oSIST prEN ISO 3037:2022
ISO/DIS 3037:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022
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 2022 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 3037:2022
ISO/DIS 3037:2022(E)
Contents Page
Foreword .iv
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Sampling . 2
7 Conditioning . 2
8 Preparation of test pieces .3
9 Procedure .4
10 Calculation . 4
11 Test report . 5
Annex A (informative) Examples of suitable cutting devices . 6
Annex B (informative) Precision data . 7
Bibliography . 8
iii
© ISO 2022 – All rights reserved
---------------------- Page: 5 ----------------------
oSIST prEN ISO 3037:2022
ISO/DIS 3037:2022(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.
The committee responsible for this document is ISO/TC 6, Paper, board and pulps, Subcommittee SC 2,
Test methods and quality specifications for paper and board.
This sixth edition cancels and replaces the fifth edition (ISO 3037:2013), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— the title has changed from "Corrugated fibreboard - Determination of edgewise crush resistance
(unwaxed edge method)" to "Corrugated fibreboard - Determination of edgewise crush resistance
(non-waxed edge method)";
— specifications for the compression testing machine have been replaced by reference to ISO 13820;
— introduction has been updated further highlighting the impact of edge effects and the incomparability
of different test methods;
— scope has been complemented by additional information about the corrugated fibreboard grades;
— terms "buckling" (3.2) and "tipping" (3.3) were included into Clause 3;
— Clause 6 "Sampling" has been revised;
— Clause 9 "Procedure" has been updated and a constant feed rate has been added;
— Clause 11 "Test report" has been updated;
— Annex A has been revised;
— Bibliography has been updated;
— editorial changes and adoption to ISO regulations.
iv
© ISO 2022 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 3037:2022
ISO/DIS 3037:2022(E)
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.
v
© ISO 2022 – All rights reserved
---------------------- Page: 7 ----------------------
oSIST prEN ISO 3037:2022
ISO/DIS 3037:2022(E)
Introduction
A variety of methods for the determination of edgewise crush resistance are in use in different parts of
the world. These can be classified into four groups as follows:
a) Those in which a carefully cut rectangular test piece is tested without any special treatment or
modification (e.g. this document).
b) Those in which the edges of the test piece to which the force is applied are waxed, to prevent the
test result being influenced by edge effects (e.g. ISO 13821).
c) Those in which the test piece edges are not waxed but the shape of the test piece is such that the
length is substantially reduced at a point midway between the loaded edges, in order to induce the
failure to occur away from those edges (e.g. JIS Z 0403-2).
d) Those in which carefully cut rectangular pieces are tested with edges clamped to prevent the result
from being influenced by edges effects (e.g. TAPPI T 839).
The dimensions of the test piece vary from one group to the other and, in group c), the methods vary
in the shape and method of reducing the length, and in whether or not the test piece is held in a clamp
during crushing.
The methods may not give the same numerical results and experience has shown that results for the
four groups of test methods will not correlate, but it can be shown that most of them can be used (at
varying levels of accuracy) to predict the top-to-bottom compression strength which will be achieved
when the board is properly converted into a transport package, provided that the formula to predict
BCT values from ECT results is based on data from the ECT method being used.
This document describes a method from group a). It is intended as a method for quality measurement and
quality specification purposes and is selected because it correlates with the top-to-bottom compression
strength of the final transport package and because it is the simplest and most operationally convenient
method, an important factor when large numbers of tests need to be conducted. However, it does not
measure the actual intrinsic compressive strength of the corrugated fibreboard, giving lower results
than most of the methods in groups b), c) and d). This systematic difference is due to edge effects.
Other methods can be used for other purposes, particularly when the object of the test is to study
fundamental structural characteristics of the package.
There are methods available for calculating the edgewise crush resistance from the compression
strength of the component papers.
vi
© ISO 2022 – All rights reserved
---------------------- Page: 8 ----------------------
oSIST prEN ISO 3037:2022
DRAFT INTERNATIONAL STANDARD ISO/DIS 3037:2022(E)
Corrugated fibreboard — Determination of edgewise crush
resistance (non-waxed edge method)
1 Scope
This document specifies a non-waxed edge method for the determination of the edgewise crush
resistance of corrugated fibreboard.
It is applicable to all corrugated fibreboard grades from K to D, including manufacturers specification
grades of the similar dimensions. For E grades it is applicable if no buckling and/or tipping occurs
during measurement. Under the defined test piece dimensions, grades finer than E are excluded, since
they are not measurable due to buckling and tipping.
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 186, Paper and board — Sampling to determine average quality
ISO 187, Paper, board and pulps — Standard atmosphere for conditioning and testing and procedure for
monitoring the atmosphere and conditioning of samples
ISO 13820, Paper, board and corrugated fibreboard — Description and calibration of compression-testing
equipment
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
edgewise crush resistance
maximum force per unit length that a test piece of corrugated fibreboard can support until the onset
of failure when a compressive force is applied with the flute structure perpendicular to the loading
surfaces
3.2
buckling
failure mode distinct from pure compression, where the mid-part of the sample moves substantially out
of the vertical plane creating a “c” or similar shape
Note 1 to entry: This can occur when the bending resistance of the sample is lower than the compression
resistance of the sample for the given geometry of the test piece, or when sample edge imperfections add an
angular or rotational component to the force from the loading platens.
1
© ISO 2022 – All rights reserved
---------------------- Page: 9 ----------------------
oSIST
...
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