ISO 21629-1:2021

INTERNATIONAL ISO
STANDARD 21629-1
First edition
2021-06
Bamboo floorings —
Part 1:
Indoor use
Planchers en bambou —
Partie 1: Utilisation en intérieur
Reference number
©
ISO 2021
© 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

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 4
4.1 Appearance requirements. 4
4.2 Dimension requirements . 4
4.3 Property requirements . 6
4.3.1 Physical and mechanical requirements . 6
4.3.2 Other declarations at the time of the first delivery . 9
5 Test samples . 9
5.1 Sampling . 9
5.2 Dimensions and quantity . 9
5.2.1 Laminated bamboo flooring . 9
5.2.2 Bamboo scrimber flooring .10
5.2.3 Bamboo-wood composite flooring .12
5.2.4 Flattened bamboo flooring . .12
6 Handling, storage, packaging and marking .12
6.1 Handling, storage and packaging .12
6.2 Marking .12
Annex A (normative) Test method of assembly gap .13
Annex B (normative) Determination of moisture content .14
Annex C (normative) Test method of bonding quality .15
Bibliography .16
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 Electro technical Commission (IEC) on all matters of electro
technical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part1. 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, Part2 (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 296, Bamboo and Rattan.
A list of all parts in the ISO 21629 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 2021 – All rights reserved

INTERNATIONAL STANDARD ISO 21629-1:2021(E)
Bamboo floorings —
Part 1:
Indoor use
1 Scope
This document specifies the technical requirements and test methods for indoor bamboo flooring for
internal use.
This document also specifies handling, storage, packaging and marking requirements.
It is applicable to unfinished and finished indoor bamboo flooring. This includes laminated bamboo
flooring, bamboo scrimber flooring, bamboo - wood composite flooring, and flattened bamboo flooring.
2 Normative references
The following documents are referred to in the text in such a way that some or all 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 2409, Paints and varnishes — Cross-cut test
ISO 4586-2, High-pressure decorative laminates (HPL, HPDL) — Sheets based on thermosetting resins
(Usually called Laminates) — Part 2: Determination of properties
ISO 7784-2, Paints and varnishes — Determination of resistance to abrasion — Part 2: Method with
abrasive rubber wheels and rotating test specimen
ISO 9426, Wood-based panels — Determination of dimensions of panels
ISO 9427, Wood-based panels — Determination of density
ISO 15184, Paints and varnishes — Determination of film hardness by pencil test
ISO 16978, Wood-based panels — Determination of modulus of elasticity in bending and of bending strength
ISO 16979, Wood-based panels — Determination of moisture content
ISO 16983, Wood-based panels — Determination of swelling in thickness after immersion in water
ISO 17959, General requirements for solid wood flooring
3 Terms and definitions
For the purposes of this document, the terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
bamboo flooring
assembled bamboo-based panel used as floor boards
3.2
finished indoor bamboo flooring
bamboo flooring (3.1) with surface treatment such as coating, lacquering or oil-treatment
3.3
unfinished indoor bamboo flooring
bamboo flooring (3.1) without surface treatment such as coating, lacquering or oil-treatment
3.4
laminated bamboo flooring
flooring product made from laminated bamboo strips
3.5
bamboo scrimber flooring
flooring product made of bamboo scrimber (3.8)
3.6
bamboo - wood composite flooring
flooring made of bamboo as a surface layer and wood or wood-based panel as the core
3.7
flattened bamboo flooring
flooring with surface layer made of flattened bamboo board
3.8
bamboo scrimber
panel or lumber made of compressed bamboo fibre bundle strips or compressed bamboo fibre bundle
sheet
3.9
flattened bamboo
piece of bamboo culm pressed to level the surface
3.10
bamboo outer layer
hard, compact sheath of bamboo culm which is exposed to the external environment
3.11
bamboo inner layer
soft inside layer of the bamboo culm, serving as boundary to the hollow central portion of the culm
3.12
squareness
the distance, δ , between the panel edge and the side of the other arm of the square
2 © ISO 2021 – All rights reserved

Figure 1 — Example of squareness
3.13
assembly gap
space between adjacent surfaces of assembled bamboo flooring (3.1)
3.14
decay
decomposition of bamboo by fungi or other micro-organisms resulting in softening, progressive loss of
mass and strength, and often a change of texture and colour
3.15
crack
lengthwise separation of the bamboo fibres caused chiefly by shrinkage in drying and / or mechanical
damage
3.16
gap
opening on the face or bottom of the bamboo flooring (3.1) product
3.17
splinter
filament protrusion on the surface of bamboo scrimber (3.8)
3.18
blister
presence of trapped air underneath the coating of the finished indoor bamboo flooring (3.2) resulting to
bubbles on the face of the product
3.19
swollen edge
strip thickening part around the paint film
4 Requirements
4.1 Appearance requirements
The material used for the bamboo flooring shall be free from physical damage, decay and insect attack.
There will be variations from element to element, but the total impression of the installed floor shall
show a homogeneous character.
Any part of the material that impedes preservation, bonding and finishing shall be removed entirely.
As bamboo is a natural material, colour variations may occur, also due to an effect of light over time.
Table 1 — Appearance requirements
Face layer
Types of
Laminated Bamboo Flattened bamboo
Sub layer(s)
defects
bamboo floor- scrimber floor- flooring
ing ing
Bamboo Permitted as long it’s Not permitted
outer used as the face layer
layer
Not permitted
Permitted if this does not impair
Bamboo
the bonding strength between the
inner Not permitted
strips and/or the layers of the bam-
layer
a
boo flooring
Permitted as long as these splinters
Splinters Not permitted do not impair the use quality of the
b
bamboo flooring
Permitted for unfinished flooring as long as these cracks do not
Permitted as long as these cracks do
c
impair the wearing quality of the bamboo flooring
Cracks not impair the wearing quality of the
c
bamboo flooring
Not permitted for finished flooring
Permitted for unfinished flooring as long as these gaps do
...