ISO 24342:2024
(Main)Resilient and textile floor coverings — Determination of side length, edge straightness and squareness of tiles and planks
Resilient and textile floor coverings — Determination of side length, edge straightness and squareness of tiles and planks
This document specifies methods for determining side lengths, straightness of edges and squareness of square and/or rectangular resilient or textile floor tiles and planks.
Revêtements de sol résilients et textiles — Détermination de la longueur des bords, de la rectitude des arêtes et de l’équerrage des dalles et des lames
Le présent document spécifie des méthodes de détermination de la longueur des bords, de la rectitude des arêtes et de l’équerrage des revêtements de sol résilients ou textiles carrés et/ou rectangulaires sous forme de dalles et de lames.
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Buy Standard
Standards Content (Sample)
International
Standard
ISO 24342
Fourth edition
Resilient and textile floor
2024-06
coverings — Determination of
side length, edge straightness and
squareness of tiles and planks
Revêtements de sol résilients et textiles — Détermination de la
longueur des bords, de la rectitude des arêtes et de l’équerrage
des dalles et des lames
Reference number
© ISO 2024
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
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
5.1 Reference plate .2
5.2 Rigid metal or glass plate .3
5.3 Flat bedplate apparatus . .3
5.4 Dial gauge, calliper gauge and/or thickness gauges .5
5.5 Movable dial gauges apparatus . .5
6 Sampling and selection of specimens . 6
7 Atmosphere for conditioning and testing . 6
7.1 Resilient floor coverings .6
7.2 Textile floor coverings .7
8 Procedure . 7
8.1 General .7
8.2 Side length .7
8.2.1 Gauge method .7
8.2.2 Movable dial gauge method .7
8.2.3 Sliding calliper method . . .8
8.3 Edge straightness .8
8.3.1 Thickness gauge method .8
8.3.2 Movable dial gauge method .8
8.4 Squareness .9
8.4.1 Thickness gauge method .9
8.4.2 Movable dial gauge method .9
9 Calculation and expression of the results . 9
9.1 For flat bedplate apparatus (5.3) and thickness gauge (5.4) .9
9.1.1 Side length .9
9.1.2 Edge straightness .9
9.1.3 Squareness .9
9.2 For the movable dial gauge apparatus .9
9.2.1 Tiles .9
9.2.2 Planks .9
9.3 For the sliding calliper apparatus . .10
10 Test report . 10
Bibliography .12
iii
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 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. 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 219, Floor coverings, in collaboration with
the European Committee for Standardization (CEN) Technical Committee CEN/TC 134, Resilient and textile
floor coverings, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna
Agreement).
This fourth edition cancels and replaces the third edition (ISO 24342:2018), which has been technically
revised.
The main changes are as follows:
— procedures have been modified to allow for differences between planks and tiles. Clauses 3, 4, 5, 8 and 9
have therefore been updated;
— uncertainty of measurement of the records defined by dial gauges method has been changed from 0,02
mm into 0,01 mm.
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
International Standard ISO 24342:2024(en)
Resilient and textile floor coverings — Determination of side
length, edge straightness and squareness of tiles and planks
1 Scope
This document specifies methods for determining side lengths, straightness of edges and squareness of
square and/or rectangular resilient or textile floor tiles and planks.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
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/
3.1
squareness
measurement of the amount the corner of the tile/plank deviates from 90°
Note 1 to entry: See Figure 1.
Figure 1 — Definition of squareness
3.2
straightness
property of an edge to be straight, unbent
Note 1 to entry: Some examples are shown in Figure 2.
Figure 2 — Examples of straightness – Curved and S-Bow cases
3.3
tile
plank
type of resilient or textile flooring of predetermined shape intended to be used in a modular mode
Note 1 to entry: Tiles are usually square. Planks have a ratio length divided by width superior or equal to 1,3. A
modular product with a ratio inferior to 1,3 has to be considered as a tile.
4 Principle
The side lengths, straightness and squareness of resilient or textile floor tiles and planks are important
considerations because installed flooring will have an objectionable appearance if these performance
criteria are not followed. This can cause the installed tiles/planks to line up unevenly, producing unsightly
seams and corners that do not match. The surface dimensions of a tile/plank are measured by a contact
method at defined positions in each direction.
To assess the squareness of a tile, each corner of a right-angled tile is fitted into the dihedral angle of a
precision square and the maximum gap between the arm of the square and the end of the tile is measured.
The maximum opening between the arm and the edge is measured at defined points along the edge to assess
the straightness.
To assess the squareness of a plank, place one side of the plank against a square/rectangle and slide it up
to touch the other arm. Using the thickness gauges, determine the maximum deviation from square at the
small side. The procedure is repeated on the diagonally opposite corner. The maximum opening
...
Norme
internationale
ISO 24342
Quatrième édition
Revêtements de sol résilients et
2024-06
textiles — Détermination de la
longueur des bords, de la rectitude
des arêtes et de l’équerrage des
dalles et des lames
Resilient and textile floor coverings — Determination of side
length, edge straightness and squareness of tiles and planks
Numéro de référence
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2024
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: +41 22 749 01 11
E-mail: copyright@iso.org
Web: www.iso.org
Publié en Suisse
ii
Sommaire Page
Avant-propos .iv
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Principe. 2
5 Appareillage . 2
5.1 Plaque de référence .2
5.2 Plaque rigide, en métal ou en verre . .3
5.3 Appareillage à plaque de base plane .3
5.4 Comparateur à cadran, pied à coulisse et/ou jauges d’épaisseur .5
5.5 Appareillage à comparateurs à cadran mobiles.5
6 Échantillonnage et sélection des éprouvettes . 6
7 Atmosphère de conditionnement et d’essai . 7
7.1 Revêtements de sol résilients .7
7.2 Revêtements de sol textiles .7
8 Mode opératoire . 7
8.1 Généralités .7
8.2 Longueur des bords.7
8.2.1 Méthode du comparateur .7
8.2.2 Méthode des comparateurs à cadran mobiles .7
8.2.3 Méthode du pied à coulisse .8
8.3 Rectitude des arêtes .9
8.3.1 Méthode des jauges d’épaisseur .9
8.3.2 Méthode des comparateurs à cadran mobiles .9
8.4 Équerrage .9
8.4.1 Méthode des jauges d’épaisseur .9
8.4.2 Méthode des comparateurs à cadran mobiles .9
9 Calcul et expression des résultats . 9
9.1 Pour l’appareillage à plaque de base plane (5.3) et la jauge d’épaisseur (5.4) .9
9.1.1 Longueur des bords .9
9.1.2 Rectitude des arêtes .9
9.1.3 Équerrage .9
9.2 Pour l’appareillage à comparateurs à cadran mobiles .10
9.2.1 Dalles .10
9.2.2 Lames .10
9.3 Pour l’appareillage à pied à coulisse .10
10 Rapport d’essai . 10
Bibliographie .12
iii
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération mondiale d’organismes nationaux
de normalisation (comités membres de l’ISO). L’élaboration des Normes internationales est en général
confiée aux comités techniques de l’ISO. Chaque comité membre intéressé par une étude a le droit de faire
partie du comité technique créé à cet effet. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec l’ISO participent également aux travaux. L’ISO collabore étroitement avec
la Commission électrotechnique internationale (IEC) en ce qui concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d’approbation requis pour les différents types de documents ISO. Le présent document
a été rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2
(voir www.iso.org/directives).
L’ISO attire l’attention sur le fait que la mise en application du présent document peut entraîner l’utilisation
d’un ou de plusieurs brevets. L’ISO ne prend pas position quant à la preuve, à la validité et à l’applicabilité
de tout droit de brevet revendiqué à cet égard. À la date de publication du présent document, l’ISO n’avait
pas reçu notification qu’un ou plusieurs brevets pouvaient être nécessaires à sa mise en application.
Toutefois, il y a lieu d’avertir les responsables de la mise en application du présent document que des
informations plus récentes sont susceptibles de figurer dans la base de données de brevets, disponible à
l’adresse www.iso.org/brevets. L’ISO ne saurait être tenue pour responsable de ne pas avoir identifié de tels
droits de brevet.
Les appellations commerciales éventuellement mentionnées dans le présent document sont données pour
information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer un engagement.
Pour une explication de la nature volontaire des normes, la signification des termes et expressions
spécifiques de l’ISO liés à l’évaluation de la conformité, ou pour toute information au sujet de l’adhésion de
l’ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles techniques au
commerce (OTC), voir www.iso.org/iso/fr/avant-propos.html.
Le présent document a été élaboré par le comité technique ISO/TC 219, Revêtements de sol, en collaboration
avec le comité technique CEN/TC 134, Revêtements de sol résilients et textiles, du Comité européen de
normalisation (CEN) conformément à l’Accord de coopération technique entre l’ISO et le CEN (Accord de
Vienne).
Cette quatrième édition annule et remplace la troisième édition (ISO 24342:2018), qui a fait l’objet d’une
révision technique.
Les principales modifications sont les suivantes:
— les modes opératoires ont été modifiés pour faire une distinction entre les lames et les dalles. Les Articles 3,
4, 5, 8 et 9 ont donc été mis à jour;
— l'incertitude de mesure des enregistrements définis par la méthode des comparateurs à cadran est
passée de 0,02 mm à 0,01 mm.
Il convient que l’utilisateur adresse tout retour d’information ou toute question concernant le présent
document à l’organisme national de normalisation de son pays. Une liste exhaustive desdits organismes se
trouve à l’adresse www.iso.org/fr/members.html.
iv
Norme internationale ISO 24342:2024(fr)
Revêtements de sol résilients et textiles — Détermination
de la longueur des bords, de la rectitude des arêtes et de
l’équerrage des dalles et des lames
1 Domaine d’application
Le présent document spécifie des méthodes de détermination de la longueur des bords, de la rectitude des
arêtes et de l’équerrage des revêtements de sol résilients ou textiles carrés et/ou rectangulaires sous forme
de dalles et de lames.
2 Références normatives
Il n’y a pas de références normatives dans le présent document.
3 Termes et définitions
Pour les besoins du présent document, les termes et définitions suivants s’appliquent.
L’ISO et l’IEC tiennent à jour des bases de données terminologiques destinées à être utilisées en normalisation,
consultables aux adresses suivantes:
— ISO Online browsing platform: disponible à l’adresse https:// www .iso .org/ obp
— IEC Electropedia: disponible à l’adresse https:// www .electropedia .org/
3.1
équerrage
mesurage de l’écart par rapport à 90° à chaque angle de la dalle/lame
Note 1 à l'article: Voir la Figure 1.
Figure 1 — Définition de l’équerrage
3.2
rectitude
propriété d’une arête dont la caractéristique est d’être droite et sans incurvation
Note 1 à l'article: Quelques exemples sont illustrés à la Figure 2.
Figure 2 — Exemples de rectitude – Cas de courbes et courbure en S
3.3
dalle
lame
type de revêtement de sol résilient ou textile de forme prédéterminée, destiné à être utilisé de façon
modulaire
Note 1 à l'article: Les dalles sont généralement carrées. Les lames ont un rapport de la longueur divisée par la largeur
supérieur ou égal à 1,3. Un produit modulaire avec un rapport inférieur à 1,3 doit être considéré comme une dalle.
4 Principe
La longueur des bords, la rectitude et l’équerrage des revêtements de sol résilients ou textiles sous forme de
dalles et de lames sont des critères de performance importants qui, s’ils ne sont pas respectés, donnent aux
revêtements installés un aspect inacceptable. Il peut s’ensuivre un mauvais alignement des dalles/lames
avec des joints disgracieux et des coins qui s’assemblent mal. Les dimensions de la surface d’une dalle/lame
sont mesurées à l’aide d’une méthode par contact en des emplacements définis pour chaque sens.
Pour évaluer l’équerrage d’une dalle, chaque coin d’une dalle à angles droits est disposé dans le dièdre d’une
équerre de pré
...
FINAL DRAFT
International
Standard
ISO/FDIS 24342
ISO/TC 219
Resilient and textile floor-
Secretariat: NBN
coverings — Determination of
Voting begins on:
side length, edge straightness and
2024-01-31
squareness of tiles and planks
Voting terminates on:
2024-03-27
Revêtements de sol résilients et textiles — Détermination de la
longueur des bords, de la rectitude des arêtes et de l’équerrage
des dalles et des lames
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
ISO/CEN PARALLEL PROCESSING 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 24342:2024(en) © ISO 2024
FINAL DRAFT
ISO/FDIS 24342:2024(en)
International
Standard
ISO/FDIS 24342
ISO/TC 219
Resilient and textile floor-
Secretariat: NBN
coverings — Determination of
Voting begins on:
side length, edge straightness and
squareness of tiles and planks
Voting terminates on:
Revêtements de sol résilients et textiles — Détermination de la
longueur des bords, de la rectitude des arêtes et de l’équerrage
des dalles et des lames
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
ISO/CEN PARALLEL PROCESSING
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: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 24342:2024(en) © ISO 2024
ii
ISO/FDIS 24342:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
5.1 Reference plate .2
5.2 Rigid metal or glass plate .3
5.3 Flat bedplate apparatus . .3
5.4 Dial gauge, calliper gauge and/or thickness gauges .5
5.5 Movable dial gauges apparatus . .5
6 Sampling and selection of specimens . 6
7 Atmosphere for conditioning and testing . 6
7.1 Resilient floor coverings .6
7.2 Textile floor coverings .7
8 Procedure . 7
8.1 General .7
8.2 Side length .7
8.2.1 Gauge method .7
8.2.2 Movable dial gauge method .7
8.2.3 Sliding calliper method . . .8
8.3 Edge straightness .8
8.3.1 Thickness gauge method .8
8.3.2 Movable dial gauge method .8
8.4 Squareness .9
8.4.1 Thickness gauge method .9
8.4.2 Movable dial gauge method .9
9 Calculation and expression of the results . 9
9.1 For flat bedplate apparatus (5.3) and thickness gauge (5.4) .9
9.1.1 Side length .9
9.1.2 Edge Straightness .9
9.1.3 Squareness .9
9.2 For the movable dial gauge apparatus .9
9.2.1 Tiles .9
9.2.2 Plank .9
9.3 For the sliding calliper apparatus . .10
10 Test report . 10
Bibliography .12
iii
ISO/FDIS 24342:2024(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 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. 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 219, Floor coverings, in collaboration with
the European Committee for Standardization (CEN) Technical Committee CEN/TC 134, Resilient and textile
floor coverings, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna
Agreement).
This fourth edition cancels and replaces the third edition (ISO 24342:2018), which has been technically
revised.
The main changes are as follows:
— procedures have been modified to allow for differences between planks and tiles. Clauses 3, 4, 5, 8 and 9
have therefore been updated;
— uncertainty of measurement of the records has been changed to 0,01 mm instead of 0,02 mm.
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
FINAL DRAFT International Standard ISO/FDIS 24342:2024(en)
Resilient and textile floor-coverings — Determination of side
length, edge straightness and squareness of tiles and planks
1 Scope
This document specifies methods for determining side lengths, straightness of edges and squareness of
square and/or rectangular resilient or textile floor tiles and planks.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
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/
3.1
squareness
measurement of the amount the corner of the tile/plank deviates from 90°
Note 1 to entry: See Figure 1.
Figure 1 — Definition of squareness
3.2
straightness
property of an edge to be straight, unbent
Note 1 to entry: Some examples are shown in Figure 2.
...
ISO/FDIS 24342:2023(E)
ISO /TC 219/WG2
Secretariat: NBN
Date: 2024-01-17
Resilient and textile floor -coverings — Determination of side length,
edge straightness and squareness of tiles and planks
Revêtements de sol résilients ouet textiles — Détermination de la longueur des bords, de la rectitude des arêtes
et de l’équerrage des dalles et des lames
FDIS stage
ISO/FDIS 24342:2023(E2024(en)
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
EmailE-mail: copyright@iso.org
Website: www.iso.orgwww.iso.org
Published in Switzerland
ii © ISO 2023 – All rights reserved
ISO/FDIS 24342:2023(E2024(en)
Contents
Foreword . v
1 Scope .1
2 Normative references .1
3 Terms and definitions .1
4 Principle .2
5 Apparatus .2
5.1 Reference plate .3
5.2 Rigid metal or glass plate .3
5.3 Flat bedplate apparatus .3
5.4 Dial gauge, calliper gauge and/or thickness gauges .5
5.5 Movable dial gauges apparatus .5
6 Sampling and selection of specimens .6
7 Atmosphere for conditioning and testing .6
7.1 Resilient floor coverings .6
7.2 Textile floor coverings .6
8 Procedure .7
8.1 General .7
8.2 Side length .7
8.2.1 Gauge method .7
8.2.2 Movable dial gauge method.7
8.2.3 Sliding calliper method .8
8.3 Edge straightness .8
8.3.1 Thickness gauge method .8
8.3.2 Movable dial gauge method.8
8.4 Squareness .8
8.4.1 Thickness gauge method .8
8.4.2 Movable dial gauge method.9
9 Calculation and expression of the results .9
9.1 For flat bedplate apparatus (5.3) and thickness gauge (5.4) .9
9.1.1 Side length .9
9.1.2 Edge Straightness .9
9.1.3 Squareness .9
9.2 For the movable dial gauge apparatus .9
9.2.1 Tiles .9
9.2.2 Plank .9
9.3 For the sliding calliper apparatus.9
10 Test report .9
iii
ISO/FDIS 24342:2023(E2024(en)
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iv © ISO 2023 – All rights reserved
ISO/FDIS 24342:2023(E2024(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
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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/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
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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 219, Floor coverings, in collaboration with the
European Committee for Standardization (CEN) Technical Committee CEN/TC 134, Resilient and textile floor
coverings, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna
Agreement).
This fourth edition cancels and replaces the third edition (ISO 24342:2018), which has been technically
revised.
The main changes are as follows:
— — procedures have been modified to allow for differences between planks and tiles. ItemsClauses 3, 4, 5,
8 and 9 have therefore been updated.;
— — uncertainty of measurement of the records has been changed to 0,01 mm instead of 0,02 mm.
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.
Field Code Changed
v
ISO/FDIS 24342:2024(en)
Resilient and textile floor -coverings — Determination of side length,
edge straightness and squareness of tiles and planks
1 Scope
This document describesspecifies methods for determining side lengths, straightness of edges and squareness
of square and/or rectangular resilient or textile floor tiles and planks.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminologicalterminology 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/
3.1
squareness
measurement of the amount the corner of the tile/plank deviates from 90°, as depicted in Figure 1°
Note 1 to entry: See Figure 1.
Figure 1 — Definition of squareness
3.2
straightness
property of an edge to be straight, unbent.
Note 1 to entry: Some examples are shown in Figure 2Figure 2.
ISO/FDIS 24342:2024(en)
Figure 2 — Examples of straightness – S-Bow case
3.3
tile/
plank
type of resilient or textile flooring of predetermined shape intended to be used in a modular mode.
Note 1 to entry: Tiles are usually square. Planks have a ratio length divided by width superior or equal to 1,.,3. A modular
product with a ratio inferior to 1,.,3 has to be considered as a tile.
4 Principle
The side lengths, straightness and squareness of resilient or textile floor tiles and planks are important
considerations because installed flooring will have an objectionable appearance if these performance criteria
are not followed. This can cause the installed tiles/planks to line up unevenly, producing unsightly seams and
corners that do not match. The surface dimensions of a tile/plank are measured by a contact method at defined
positions in each direction.
To assess the squareness of a tile, each corner of a right-angled tile is fitted into the dihedral angle of a
precision square and the maximum gap between the arm of the square and the end of the tile is measured. The
maximum opening between the arm and the edge is measured at defined points along the edge to assess the
straightness.
To assess the squareness of a plank, place one side of the plank against a square/rectangle and slide it up to
touch the other arm. Using the thickness gauges, determine the maximum deviation from square at the small
side. The procedure is repeated on the diagonally opposite corner. The maximum opening between the arm
and the edge is measured at defined points along the edge to assess the straightness.
NOTE For systems with edge connection systems, the visible area of the til
...
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