Paper, board and corrugated fibreboard -- Description and calibration of fixed platen compression-testing equipment

This document specifies the essential characteristics and the principles of calibration of fixed platen compression testing equipment used in the testing of paper, board, and corrugated fibreboard.

Papier, carton et carton ondule -- Description et étalonnage du materiel pour essai de compression à plateau fixe

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Status
Published
Publication Date
09-Dec-2021
Current Stage
5060 - Close of voting Proof returned by Secretariat
Start Date
10-Nov-2021
Completion Date
10-Nov-2021
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ISO 13820:2021 - Paper, board and corrugated fibreboard -- Description and calibration of fixed platen compression-testing equipment
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INTERNATIONAL ISO
STANDARD 13820
Third edition
2021-12
Paper, board and corrugated
fibreboard — Description and
calibration of fixed platen
compression-testing equipment
Papier, carton et carton ondule — Description et étalonnage du
materiel pour essai de compression à plateau fixe
Reference number
ISO 13820:2021(E)
© ISO 2021
---------------------- Page: 1 ----------------------
ISO 13820:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© 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
© ISO 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 13820:2021(E)
Contents  Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction .................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2  Normative references ..................................................................................................................................................................................... 1

3  Terms and definitions .................................................................................................................................................................................... 1

4  Principle ........................................................................................................................................................................................................................ 1

5  Apparatus .................................................................................................................................................................................................................... 1

6  Verification and calibration .....................................................................................................................................................................2

6.1 General ........................................................................................................................................................................................................... 2

6.2 Upper and lower platen conditions ...................................................................................................................................... 2

6.3 Operation speed .................................................................................................................................................................................... 2

6.4 Load cell measurement system ............................................................................................................................................... 2

7  Calibration report ............................................................................................................................................................................................... 2

Bibliography ................................................................................................................................................................................................................................ 4

iii
© ISO 2021 – All rights reserved
---------------------- Page: 3 ----------------------
ISO 13820:2021(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.

This third edition cancels and replaces the second edition (ISO 13820:2014), which has been technically

revised:
The main changes are as follows:
— the title of this document has been changed;
— “fixed platen” has been added to the scope;
— former 4,2, 5.2 and Annex A have been removed;
— Clause 6 has been restructured with additional sub-clauses added for clarity;
— the bibliography has been updated.

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.
© ISO 2021 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 13820:2021(E)
Introduction

This document describes the fixed-platen compression tester used for carrying out compression tests on

paper, board, and corrugated fibreboard. This equipment develops compressive forces at a constant rate

of strain. This is the primary equipment used in modern test labs, preferred because of its reliability, its

ability to test over the range of test levels likely to be found, and because the characteristics of existing

instruments have been well defined and universally accepted.

Another instrument, known as the beam-deflection compression tester, develops compressive forces

between one platen driven at constant speed and another platen resting on a deformable beam. With

this type neither rate of stress nor rate of strain is constant. The two instrument types produce

[1][2][3][7]

different results . The extent of the difference depends on the test being conducted and on

the characteristics, particularly the elastic characteristics, of the material being tested. The beam-

deflection tester has been inadequately defined in past International Standards for compression tests;

among existing instruments ther
...

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