SIST EN ISO 5270:2022
(Main)Pulps - Laboratory sheets - Determination of physical properties (ISO 5270:2022)
Pulps - Laboratory sheets - Determination of physical properties (ISO 5270:2022)
This document specifies the relevant International Standards used for the determination of physical
properties of laboratory sheets made of all types of pulps.
It is applicable to laboratory sheets prepared in accordance with ISO 5269-1, ISO 5269-2 or ISO 5269-3.
Faserstoff - Laborblätter - Bestimmung der physikalischen Eigenschaften (ISO 5270:2022)
Dieses Dokument legt die relevanten Internationalen Normen fest, die für die Bestimmung der physikalischen Eigenschaften von aus Faserstoff hergestellten Laborblättern benutzt werden.
Es gilt für Laborblätter, die nach ISO 5269 1, ISO 5269 2 oder ISO 5269 3 vorbereitet wurden.
Pâtes - Feuilles de laboratoire - Détermination des propriétés physiques (ISO 5270:2022)
Le présent document spécifie les Normes internationales utilisées pour la détermination des propriétés physiques des feuilles de laboratoire fabriquées à partir de pâtes de tous types.
Il est applicable à des feuilles de laboratoire préparées conformément à l’ISO 5269‑1, l’ISO 5269‑2 ou l’ISO 5269‑3.
Vlaknine - Laboratorijski listi - Ugotavljanje fizikalnih lastnosti (ISO 5270:2022)
Ta dokument določa ustrezne mednarodne standarde, ki se uporabljajo za ugotavljanje fizikalnih lastnosti laboratorijskih listov iz vseh vrst vlaknin.
Uporablja se za laboratorijske liste, pripravljene v skladu s standardom ISO 5269-1, ISO 5269-2 oziroma ISO 5269-3.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 5270:2022
01-november-2022
Nadomešča:
SIST EN ISO 5270:2012
Vlaknine - Laboratorijski listi - Ugotavljanje fizikalnih lastnosti (ISO 5270:2022)
Pulps - Laboratory sheets - Determination of physical properties (ISO 5270:2022)
Faserstoff - Laborblätter - Bestimmung der physikalischen Eigenschaften (ISO
5270:2022)
Pâtes - Feuilles de laboratoire - Détermination des propriétés physiques (ISO
5270:2022)
Ta slovenski standard je istoveten z: EN ISO 5270:2022
ICS:
85.040 Vlaknine Pulps
SIST EN ISO 5270:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 5270:2022
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SIST EN ISO 5270:2022
EN ISO 5270
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2022
EUROPÄISCHE NORM
ICS 85.040 Supersedes EN ISO 5270:2012
English Version
Pulps - Laboratory sheets - Determination of physical
properties (ISO 5270:2022)
Pâtes - Feuilles de laboratoire - Détermination des Faserstoff - Laborblätter - Bestimmung der
propriétés physiques (ISO 5270:2022) physikalischen Eigenschaften (ISO 5270:2022)
This European Standard was approved by CEN on 14 July 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 5270:2022 E
worldwide for CEN national Members.
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SIST EN ISO 5270:2022
EN ISO 5270:2022 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 5270:2022
EN ISO 5270:2022 (E)
European foreword
This document (EN ISO 5270:2022) 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 March 2023, and conflicting national standards shall
be withdrawn at the latest by March 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 5270:2012.
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 5270:2022 has been approved by CEN as EN ISO 5270:2022 without any modification.
3
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SIST EN ISO 5270:2022
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SIST EN ISO 5270:2022
INTERNATIONAL ISO
STANDARD 5270
Fourth edition
2022-08
Pulps — Laboratory sheets —
Determination of physical properties
Pâtes — Feuilles de laboratoire — Détermination des propriétés
physiques
Reference number
ISO 5270:2022(E)
© ISO 2022
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SIST EN ISO 5270:2022
ISO 5270:2022(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
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SIST EN ISO 5270:2022
ISO 5270:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Principle . 2
5 Apparatus . 2
6 Trimmed laboratory sheets .2
6.1 Selection of laboratory sheets . 2
6.2 Conditioning of laboratory sheets . 2
6.3 Optical properties . 3
6.4 Determination of grammage, bulking thickness and apparent bulk density . 3
6.5 Preparation of test pieces . 4
7 Procedures for physical properties (low-grammage sheets) . 5
7.1 General . 5
7.2 Tensile properties . 5
7.3 Tear index . 5
7.4 Burst index . 6
7.5 Air permeance . 6
7.6 Folding endurance . 6
8 Procedures for physical properties (high-grammage sheets) . 6
8.1 General . 6
8.2 Bending resistance index . 6
8.3 Flat crush resistance index after laboratory fluting . 7
8.4 Ring crush resistance index. 7
8.5 Short span compression index. 7
8.6 Z-directional tensile strength . 7
9 Test report . 7
Bibliography . 9
iii
© ISO 2022 – All rights reserved
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SIST EN ISO 5270:2022
ISO 5270:2022(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, 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 fourth edition cancels and replaces the third edition (ISO 5270:2012), which has been technically
revised.
The main changes are as follows:
— 6.2: rewriting of the subclause;
— 6.3: permission to perform optical tests on sheets formed using the Rapid-Köthen method if the
sheets are dried at room temperature;
— 6.4: introduction of a minimum area for grammage determination;
— 7.2 inclusion of the option to report strain at break following determination of tensile properties;
— 7.5: inclusion of the option to determine air permeance using the Oken method.
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 2022 – All rights reserved
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SIST EN ISO 5270:2022
ISO 5270:2022(E)
Introduction
This document provides the determination of physical properties of both low-grammage sheets and
high-grammage sheets, prepared according to ISO 5269-1, ISO 5269-2 or ISO 5269-3. The oven-dry
2
grammage of low-grammage sheets is (60 ± 2) g/m using the conventional sheet former, as described
2
in ISO 5269-1 and ISO 5269-3, or (75 ± 2) g/m using the Rapid-Köthen sheet former, as described in
2
ISO 5269-2 and ISO 5269-3. The oven-dry grammage of high-grammage sheets is 140 g/m , with a
tolerance of 3 % using the conventional and the Rapid Köthen sheet formers, except for the z-directional
2
tensile strength where the grammage is ≥90 g/m .
This document refers to the relevant International Standards for paper and board for the description and
calibration of the required equipment, and for the calculation and reporting of results. This document,
however, specifies the procedures for testing laboratory sheets where the amount of material is limited,
compared to testing of paper and board to which the relevant International Standards referred to are
applicable, and for that reason there can be a discrepancy in the procedures.
v
© ISO 2022 – All rights reserved
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SIST EN ISO 5270:2022
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SIST EN ISO 5270:2022
INTERNATIONAL STANDARD ISO 5270:2022(E)
Pulps — Laboratory sheets — Determination of physical
properties
1 Scope
This document specifies the relevant International Standards used for the determination of physical
properties of laboratory sheets made of all types of pulps.
It is applicable to laboratory sheets prepared in accordance with ISO 5269-1, ISO 5269-2 or ISO 5269-3.
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 187, Paper, board and pulps — Standard atmosphere for conditioning and testing and procedure for
monitoring the atmosphere and conditioning of samples
ISO 534, Paper and board — Determination of thickness, density and specific volume
ISO 536, Paper and board — Determination of grammage
ISO 1924-2, Paper and board — Determination of tensile properties — Part 2: Constant rate of elongation
method (20 mm/min)
ISO 1924-3, Paper and board — Determination of tensile properties — Part 3: Constant rate of elongation
method (100 mm/min)
ISO 1974, Paper — Determination of tearing resistance — Elmendorf method
ISO 2470-1, Paper, board and pulps — Measurement of diffuse blue reflectance factor — Part 1: Indoor
daylight conditions (ISO brightness)
ISO 2471, Paper and board — Determination of opacity (paper backing) — Diffuse reflectance method
ISO 2493-1, Paper and board — Determination of bending resistance — Part 1: Constant rate of deflection
ISO 2493-2, Paper and board — Determination of resistance to bending — Part 2: Taber-type tester
ISO 2758, Paper — Determination of bursting strength
ISO 5626, Paper — Determination of folding endurance
ISO 5636-3, Paper and board — Determination of air permeance (medium range) — Part 3: Bendtsen
method
ISO 5636-4, Paper and board — Determination of air permeance (medium range) — Part 4: Sheffield
method
ISO 5636-5, Paper and board — Determination of air permeance (medium range) — Part 5: Gurley method
ISO 5636-6, Paper and board — Determination of air permeance (medium range) — Part 6: Oken method
ISO 7263 (all parts), Corrugating medium — Determination of the flat crush resistance after laboratory
fluting
1
© ISO 2022 – All rights reserved
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SIST EN ISO 5270:2022
ISO 5270:2022(E)
ISO 9416, Paper — Determination of light scattering and absorption coefficients (using Kubelka-Munk
theory)
ISO 9895, Paper and board — Compressive strength — Short-span test
ISO 11475, Paper and board — Determination of CIE whiteness, D65/10 degrees (outdoor daylight)
ISO 11476, Paper and board — Determination of CIE whiteness, C/2° (indoor illumination conditions)
ISO 12192, Paper and board — Determination of compressive strength — Ring crush method
ISO 15754, Paper and board — Determination of z-directional tensile strength
3 Terms and definitions
No terms and definitions are listed in this document.
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/
4 Principle
Determination of physical properties of laboratory sheets using the procedure and equipment described
in the relevant International Standards given in Tables 1 an
...
SLOVENSKI STANDARD
oSIST prEN ISO 5270:2021
01-november-2021
Vlaknine - Laboratorijski listi - Ugotavljanje fizikalnih lastnosti (ISO/DIS 5270:2021)
Pulps - Laboratory sheets - Determination of physical properties (ISO/DIS 5270:2021)
Faserstoff - Laborblätter - Bestimmung der physikalischen Eigenschaften (ISO/DIS
5270:2021)
Pâtes - Feuilles de laboratoire - Détermination des propriétés physiques (ISO/DIS
5270:2021)
Ta slovenski standard je istoveten z: prEN ISO 5270
ICS:
85.040 Vlaknine Pulps
oSIST prEN ISO 5270:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 5270:2021
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oSIST prEN ISO 5270:2021
DRAFT INTERNATIONAL STANDARD
ISO/DIS 5270.2
ISO/TC 6 Secretariat: SCC
Voting begins on: Voting terminates on:
2021-09-13 2021-11-08
Pulps — Laboratory sheets — Determination of physical
properties
Pâtes — Feuilles de laboratoire — Détermination des propriétés physiques
ICS: 85.040
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
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 5270.2:2021(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 2021
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oSIST prEN ISO 5270:2021
ISO/DIS 5270.2:2021(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
ii © ISO 2021 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 5270:2021
ISO/DIS 5270.2:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Principle . 2
5 Apparatus . 2
6 Trimmed Laboratory Sheets . 2
6.1 Selection of Laboratory Sheets . 2
6.2 Conditioning of Laboratory Sheets . 2
6.3 Optical Properties . 3
6.4 Determination of grammage, bulking thickness and apparent bulk density . 3
6.5 Preparation of test pieces . 4
7 Procedures for physical properties (“low grammage” sheets) . 5
7.1 General . 5
7.2 Tensile properties . 5
7.3 Tear Index . 6
7.4 Burst Index . 6
7.5 Air permeance . 6
7.6 Folding endurance . 6
8 Procedures for physical properties (“high grammage” sheets) . 6
8.1 General . 6
8.2 Bending resistance index . 7
8.3 Flat crush resistance index after laboratory fluting . 7
8.4 Ring crush resistance index . 7
8.5 Short span compression index . 7
8.6 Z-directional tensile strength . 7
Bibliography . 9
© ISO 2021 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 5270:2021
ISO/DIS 5270.2:2021(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.
This fourth edition cancels and replaces the third edition (ISO 5270:2012), which has been editorially
and technically revised.
The main changes compared to the previous edition are as follows:
• The option to determine air permeance using the Oken method (ISO 5636-6)’
• Rewriting of the section on Conditioning;
• Introduction of a minimum area for grammage determination;
• Permitting optical tests on sheets formed using the Rapid-Köthen method if the sheets are dried at
room temperature;
• Inclusion of the option to report strain at break following determination of tensile properties.
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 2021 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 5270:2021
ISO/DIS 5270.2:2021(E)
Introduction
The International Organization for Standardization (ISO) [and/or] International Electrotechnical
Commission (IEC) draw[s] attention to the fact that it is claimed that compliance with this document
may involve the use of a patent.
ISO [and/or] IEC take[s] no position concerning the evidence, validity and scope of this patent right.
The holder of this patent right has ensured ISO [and/or] IEC that he/she is willing to negotiate licences
under reasonable and non-discriminatory terms and conditions with applicants throughout the world.
In this respect, the statement of the holder of this patent right is registered with ISO [and/or] IEC.
Information may be obtained from the patent database available at www .iso .org/ patents.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights other than those in the patent database. ISO [and/or] IEC shall not be held responsible for
identifying any or all such patent rights.
This document includes the determination of physical properties of both “low grammage” sheets and
“high grammage” sheets, prepared in accordance with ISO 5269-1, ISO 5269-2 or ISO 5269-3. The oven-
2
dry grammage of the “low grammage” sheets is (60 ± 2) g/m using the conventional sheet former,
2
as described in ISO 5269-1 and ISO 5269-3, or (75 ± 2) g/m using the Rapid-Köthen sheet former, as
described in ISO 5269-2 and ISO 5269-3. The oven-dry grammage of the “high grammage” sheets is
2
140 g/m , with a tolerance of 3 % using the conventional and the Rapid Köthen sheet formers, except
2
for the z-directional tensile strength where the grammage is ≥ 90 g/m .
For determination of physical properties, ISO 5270 refers to the relevant International Standards for
paper and board for the description and calibration of the required equipment, and for the calculation
and reporting of results. This document, however, specifies the procedures for testing laboratory sheets
where the amount of material is limited, compared to testing of paper and board to which the relevant
International Standards referred to are applicable, and for that reason there may be a discrepancy in
the procedures.
© ISO 2021 – All rights reserved v
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oSIST prEN ISO 5270:2021
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oSIST prEN ISO 5270:2021
DRAFT INTERNATIONAL STANDARD ISO/DIS 5270.2:2021(E)
Pulps — Laboratory sheets — Determination of physical
properties
1 Scope
This document specifies the relevant International Standards to be used for the determination of
physical properties of laboratory sheets made of all kind of pulps. It is applicable to laboratory sheets
prepared in accordance with ISO 5269-1, ISO 5269-2 or ISO 5269-3.
In this document, it is left to the pulp producer and the pulp user to agree upon which properties are
relevant to be tested. The results are, if applicable, reported in index form.
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 187:1990, Paper, board and pulps — Standard atmosphere for conditioning and testing and procedure
for monitoring the atmosphere and conditioning of samples
ISO 534, Paper and board — Determination of thickness, density and specific volume
ISO 536, Paper and board — Determination of grammage
ISO 1924-2, Paper and board — Determination of tensile properties — Part 2: Constant rate of elongation
method (20 mm/min)
ISO 1924-3, Paper and board — Determination of tensile properties — Part 3: Constant rate of elongation
method (100 mm/min)
ISO 1974, Paper — Determination of tearing resistance — Elmendorf method
ISO 2493-1, Paper and board — Determination of bending resistance — Part 1: Constant rate of deflection
ISO 2493-2, Paper and board — Determination of resistance to bending — Part 2: Taber-type tester
ISO 2758, Paper — Determination of bursting strength
ISO 5269-1, Pulps — Preparation of laboratory sheets for physical testing — Part 1: Conventional sheet-
former method
ISO 5269-2, Pulps — Preparation of laboratory sheets for physical testing — Part 2: Rapid-Köthen method
ISO 5269-3, Pulps — Preparation of laboratory sheets for physical testing — Part 3: Conventional and
Rapid-Köthen sheet formers using a closed water system
ISO 5626, Paper — Determination of folding endurance
ISO 5636-3, Paper and board — Determination of air permeance (medium range) — Part 3: Bendtsen
method
ISO 5636-4, Paper and board — Determination of air permeance (medium range) — Part 4: Sheffield
method
ISO 5636-5, Paper and board — Determination of air permeance (medium range) — Part 5: Gurley method
© ISO 2021 – All rights reserved 1
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oSIST prEN ISO 5270:2021
ISO/DIS 5270.2:2021(E)
ISO 5636-6, Paper and board — Determination of air permeance (medium range) — Part 6: Oken method
ISO 7263, Corrugating medium — Determination of the flat crush resistance after laboratory fluting
ISO 9895, Paper and board — Compressive strength — Short-span test
ISO 12192, Paper and board — Determination of compressive strength — Ring crush method
ISO 15754, Paper and board — Determination of z-directional tensile strength
NOTE A separate International Standard, ISO 153610, has been published for pulps describing the
determination of zero-span tensile strength, wet or dry.
3 Terms and definitions
No terms and definitions are listed in this document.
4 Principle
Determination of physical properties of laboratory sheets using the procedure and equipment described
in the relevant International Standards given in Tables 1 and 2. The results are, if applicable, reported
in index form.
NOTE The properties to be measured are jointly determined by the pulp producer and the pulp user.
5 Apparatus
The equipment is specified in the respective International Standards given in Tables 1 and 2 to
which this International Standard refers. The equipment shall be calibrated in accordance with the
instructions in the relevant International Standards given in Tables 1 and 2.
6 Trimmed Laboratory Sheets
6.1 Selection of Laboratory Sheets
Depending on the properties to be tested, determine the number of laboratory sheets required (see
Table 1 and/or Table 2). The specification of the number of test pieces needed for each property defines
the area required for testing and thus the number of sheets.
Each sheet shall be free of visible defects.
6.2 Conditioning of Laboratory Sheets
Condition the laboratory sheets in the standard atmosphere (23 ± 1) °C and (50 ± 2) % relative humidity,
or in the atmosphere allowed in tropical countries, according to ISO 187.
ISO 187 states in its Introduction that “Unless otherwise specified, the equilibrium condition should
be attained by the sorptive process”. For tests in which the hysteresis of the equilibrium moisture
content may lead to errors that are significant, ISO 187 requires the sample to be pre-conditioned
before conditioning (see 7.1) unless it is known that conditioning will result in an equilibrium moisture
content equivalent to that achieved by sorption or the samples have been
...
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