ISO 13061-5:2020

INTERNATIONAL ISO
STANDARD 13061-5
First edition
2020-01
Physical and mechanical properties of
wood — Test methods for small clear
wood specimens —
Part 5:
Determination of strength in
compression perpendicular to grain
Propriétés physiques et mécaniques du bois — Méthodes d'essais sur
petites éprouvettes de bois sans défauts —
Partie 5: Détermination de la résistance en compression
perpendiculaire au fil
Reference number
ISO 13061-5:2020(E)
©
ISO 2020

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ISO 13061-5:2020(E)

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ii © ISO 2020 – All rights reserved

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ISO 13061-5:2020(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 Preparation of test pieces . 2
6.1 General . 2
6.2 Dimensions of test pieces . 2
6.3 Moisture content of test pieces . 2
7 Procedure. 2
8 Calculation and expression of results . 3
9 Test report . 5
© ISO 2020 – All rights reserved iii

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ISO 13061-5:2020(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).
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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 218, Timber.
This first edition of ISO 13061-5 cancels and replaces ISO 3132:1975, which has been technically revised.
The main changes are as follows:
— sizes, moisture content of test pieces and adjustment for moisture content have been technically
revised;
— some sentences were reconstructed for clarity.
A list of all parts in the ISO 13061 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 © ISO 2020 – All rights reserved

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ISO 13061-5:2020(E)

Introduction
The main purpose of this document is to establish the common standard concerning testing methods
for small clear wood specimens and general requirements for determining physical and mechanical
properties of wood.
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INTERNATIONAL STANDARD ISO 13061-5:2020(E)
Physical and mechanical properties of wood — Test
methods for small clear wood specimens —
Part 5:
Determination of strength in compression perpendicular
to grain
1 Scope
This document specifies a method for determining the strength in compression perpendicular to grain
of wood.
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 3129, Wood — Sampling methods and general requirements for physical and mechanical tests
ISO 13061-1, Physical and mechanical properties of wood — Test methods for small clear wood specimens —
Part 1: Determination of moisture content for
...