ISO 7567

Bamboo structures — Glued laminated bamboo — Product specifications

This document specifies product specification for glued laminated bamboo: requirements for components and bonding, performance requirements of glued laminated bamboo products, production and storage facilities, evaluation of conformity and marking and labelling.

Structures en bambou — Bambou lamellé-collé — Spécifications du produit

General Information

• Status: Not Published
• ICS: 91.080.20 - Timber structures
• Technical Committee: ISO/TC 165 - Timber structures
• Drafting Committee: ISO/TC 165 - Timber structures
• Current Stage: 6000 - International Standard under publication
• Completion Date: 08-Oct-2024

Standards Content (Sample)

FINAL DRAFT
International
Standard
ISO/FDIS 7567
ISO/TC 165
Bamboo structures — Glued
Secretariat: SCC
laminated bamboo — Product
Voting begins on:
specifications
2024-08-12
Structures en bambou — Bambou lamellé-collé — Spécifications
Voting terminates on:
du produit
2024-10-07
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 SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 7567:2024(en) © ISO 2024

FINAL DRAFT
ISO/FDIS 7567:2024(en)
International
Standard
ISO/FDIS 7567
ISO/TC 165
Bamboo structures — Glued
Secretariat: SCC
laminated bamboo — Product
Voting begins on:
specifications
Structures en bambou — Bambou lamellé-collé — Spécifications
Voting terminates on:
du produit
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 SUPPOR TING DOCUMENTATION.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 7567:2024(en) © ISO 2024

ii
ISO/FDIS 7567:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 3
5 Component requirements . 3
5.1 Bamboo strip requirements .3
5.1.1 Appearance .3
5.1.2 Maturity .3
5.1.3 Density .4
5.2 Adhesives .4
6 Performance requirements . . 4
6.1 Extension Joints in laminations .4
6.1.1 Moisture content of bamboo strips .4
6.1.2 Extension joints geometry .4
6.1.3 Extension joint surface and adhesive application .4
6.2 Glue line integrity and strength .5
6.3 Property requirements .6
7 Manufacturing requirements . 6
7.1 General .6
7.2 Adhesives .6
7.3 Bamboo .6
8 Factory production internal quality control . 7
8.1 General .7
8.2 Glue line integrity .7
8.3 Gluing record .7
Annex A (informative) Shear performance test . 8
Annex B (informative) Personnel, facilities, manufacture, and quality control .11
Annex C (informative) Formaldehyde emission . 14
Annex D (informative) Examples of extension joints .15
Bibliography .16

iii
ISO/FDIS 7567:2024(en)
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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 165, Timber structures.
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/FDIS 7567:2024(en)
Introduction
Glued laminated bamboo is produced by bonding together several bamboo strips with their fibres parallel
to each other. A member with a rectangular or non-rectangular solid cross-section can be produced through
this manufacturing process.
The purpose of the requirements in this document is to provide minimum product specifications to achieve
adequate in-service performance of glued laminated bamboo building structures.
Figure 1 shows the typical manufacturing steps of glued laminated bamboo. Figure 1 a) shows a single
bamboo strip (also known as ‘lamina’) with rectangular cross section (w × t × l as shown in Figure 1 a)
s s s
which is typically lengthened by adding bamboo strips using non-structural joints (see 6.1). Figure 1 b)
shows a multiple layered glued laminated bamboo “board” (having width w and height h) component that
s
results from bonding together bamboo strips. The boards are subsequently assembled into glued laminated
bamboo components (having width b and height h) as shown in Figure 1 c) and Figures 1 d). The layup shown
in Figure 1 c) is the commonly used glued laminated bamboo arrangement. Other arrangements permitted
by this document are shown in Figures 1 d).
When producing multiple-board glued laminated bamboo, care shall be taken that the splice joints in
adjacent boards are staggered by at least the greater of 10w and 2h (see Figure 2).
s
a)  Single bam- d)  Other way to form
c)  Several bamboo
boo strip, the a solid glued laminated
strips are pressed both
basic compo- b)  Several bamboo
vertically and laterally
nent of glued bamboo strips
to form a solid glued
laminated are vertically
laminated bamboo
bamboo pressed
Key
1 splice joint
Figure 1 — Key manufacturing process for the products covered by this document
Figure 2 — Requirement for the staggering of splice joints in adjacent boards in the longitudinal
direction
v
ISO/FDIS 7567:2024(en)
vi
FINAL DRAFT International Standard ISO/FDIS 7567:2024(en)
Bamboo structures — Glued laminated bamboo — Product
specifications
1 Scope
This document specifies requirements for the components of glued laminated bamboo members intended
for structural use.
Although currently most glued laminated bamboo is made from Phyllostachys edulis (Moso), this document
also applies to other bamboo species (e.g. Guadua angustifolia, Dendrocalamus asper) if the performance
required by this document can be shown to have been achieved.
The basic requirements apply to structural members of all service classes; however, special precautions are
necessary for service class 3, for example, the use of weather resistant adhesives (see 5.2).
Annex C contains informative references for formaldehyde emission.
The requirements will need to be supplemented to take into consideration any relevant special conditions as
well as material and/or functional requirements.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
re
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Bamboo structures— — Glued laminated bamboo — Product
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ISO/DISFDIS 7567:2023(E2024(en) Formatted: Font: 11 pt, Bold
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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, Formatted: Right: 1.5 cm, Bottom: 1 cm, Gutter: 0 cm,
Header distance from edge: 1.27 cm, Footer distance
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. from edge: 0.5 cm
Commented [eXtyles1]: The reference "ISO 2024" is to a
ISO copyright office
withdrawn standard
CP 401 • Ch. de Blandonnet 8
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CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
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Before: 0 pt, No page break before, Adjust space
Fax: [phone]
between Latin and Asian text, Adjust space between
Asian text and numbers
EmailE-mail: [e-mail]
Formatted: English (United Kingdom)
Website: www.iso.orgwww.iso.org
Formatted: English (United Kingdom)
Published in Switzerland
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and numbers
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ii © ISO 2023 – All rights reserved
ii
ISO/FDIS 7567:2024(en)
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Formatted: Font: 11 pt, Bold
Formatted: HeaderCentered, Left, Space After: 0 pt,
Contents
Line spacing: single
Formatted: None, Adjust space between Latin and
Foreword . v
Asian text, Adjust space between Asian text and
numbers
Introduction . vi
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 2
4 Symbols . 4
5 Component requirements. 4
5.1 Bamboo strip requirements. 4
5.1.1 Appearance . 4
5.1.2 Maturity . 5
5.1.3 Density . 5
5.2 Adhesives . 5
6 Performance requirements . 5
6.1 Extension Joints in laminations . 5
6.1.1 Moisture content of bamboo strips . 5
6.1.2 Extension joints geometry . 6
6.1.3 Extension joint surface and adhesive application . 6
6.2 Glue line integrity and strength . 6
6.3 Property requirements . 7
7 Manufacturing requirements . 8
7.1 General. 8
7.2 Adhesives . 8
7.3 Bamboo . 8
8 Factory production internal quality control . 8
8.1 General. 8
8.2 Glue line integrity . 8
8.3 Gluing record . 8
Annex A (informative) Shear performance test . 10
Annex B (informative) Personnel, facilities, manufacture, and quality control . 12

Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols . 4
Formatted: Font: 10 pt
5 Component requirements. 4
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5.1 Bamboo component requirements . 4
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5.2 Adhesives . 5
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6 Performance requirements . 5
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6.1 Extension Joints in laminations . 5
6.2 Glue line integrity and strength . 6
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6.3 Property requirements . 7
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© ISO 2024 – All rights reserved
iii
ISO/DISFDIS 7567:2023(E2024(en) Formatted: Font: 11 pt, Bold
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7 Manufacturing requirements . 7
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7.1 General. 7
spacing: single
7.2 Adhesives . 7
7.3 Bamboo . 7
8 Factory production internal quality control . 8
8.1 General. 8
8.2 Glue line integrity . 8
8.3 Gluing record . 8
Annex A (mandatory) Shear performance test . 9
Annex B (informative) Personnel, facilities, manufacture and quality control . 11
Annex C (informative) Formaldehyde emission . 14
Annex D (informative) Examples of hook extension joints . 15
Bibliography . 16

Formatted: FooterPageRomanNumber
iv © ISO 2023 – All rights reserved
iv
ISO/FDIS 7567:2024(en)
Formatted: Font: Bold, English (United Kingdom)
Formatted: Font: 11 pt, Bold
Formatted: HeaderCentered, Left, Space After: 0 pt,
Foreword
Line spacing: single
Formatted: Adjust space between Latin and Asian text,
ISO (the International Organization for Standardization) is a worldwide federation of national standards
Adjust space between Asian text and numbers
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 document 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).
Formatted: English (United Kingdom)
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights
in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s)
which may be required to implement this document. However, implementers are cautioned that this may not
represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents.www.iso.or
...