ISO 24343-1:2007

Resilient and laminate floor coverings - Determination of indentation and residual indentation - Part 1: Residual indentation

ISO 24343-1:2007 describes a method for determining the residual indentation produced in a resilient or laminate floor covering after the application and removal of a constant load.

Revêtements de sol résilients et stratifiés — Détermination du poinçonnement et du poinçonnement rémanent — Partie 1: Poinçonnement rémanent

General Information

• Status: Published
• Publication Date: 06-Jun-2007
• ICS: 97.150 - Floor coverings
• Technical Committee: ISO/TC 219 - Floor coverings
• Drafting Committee: ISO/TC 219/WG 3 - Laminate floor coverings
• Current Stage: 9093 - International Standard confirmed
• Start Date: 03-Jun-2021
• Completion Date: 13-Dec-2025

Overview

ISO 24343-1:2007 is an international standard developed by the International Organization for Standardization (ISO) that specifies a reliable and repeatable method for determining the residual indentation in resilient and laminate floor coverings. Residual indentation refers to the permanent deformation or thickness loss remaining after a floor covering has been subjected to a constant load and allowed adequate recovery time.

This standard applies primarily to various resilient and laminate floor materials widely used in commercial and residential flooring applications. It provides a clear procedure to measure how well these materials resist permanent indentation under static pressure, helping manufacturers, specifiers, and quality control personnel assess durability and product performance.

Key Topics

• Scope and Purpose
  Defines a test method to quantify the difference between the initial thickness and the thickness of a resilient or laminate flooring material after loading and recovery, known as residual indentation.

• Test Apparatus
  Specifies the essential equipment needed, including:

  • A cylindrical steel indenter with 11.30 mm diameter
  • Rigid horizontal platform
  • Load application device able to exert a total force of 500 N smoothly
  • Comparator for measuring indentation depth to ±0.01 mm accuracy
  • Thickness measuring instrument with applied mass as per the type of floor covering
  • Stopwatch and annular weights for load distribution

• Test Environment and Conditioning
  Conditioning of test specimens at (23 ± 2) °C and relative humidity of (50 ± 5)% for a minimum of 24 hours ensures consistent environmental factors during testing.

• Test Procedure
  Involves measuring initial thickness, applying a constant load using the indenter and dead weights, recording indentation after 150 minutes, removing the load, allowing a further 150 minutes for recovery, and measuring the final thickness. The residual indentation is calculated as the difference between initial and final thickness values.

• Result Calculation and Reporting
  Residual indentation is expressed in millimeters with precision to 0.01 mm. The test report should include complete product details, mean residual indentation, indentation after 150 minutes, any deviations from the standard, and test conditions.

Applications

• Quality Control and Product Development
  Flooring manufacturers utilize ISO 24343-1 to evaluate the indentation resistance of new and existing resilient and laminate floor products, ensuring they meet performance and durability criteria.

• Specification and Compliance
  Architects, contractors, and specifiers reference this standard to select flooring materials that offer the required resistance to indentation for various environments such as offices, retail spaces, and residential areas.

• Performance Benchmarking
  The standard supports comparative analysis across different products and helps establish benchmarks for improvement in materials and construction techniques of floor coverings.

• Post-installation Assessment
  Enables facility managers and maintenance professionals to assess wear and durability over time by comparing measured residual indentation with initial product specifications.

Related Standards

• ISO 24343-2 (Short Term Indentation)
  Complements Part 1 by specifying methods for determining short-term indentation behavior of floor coverings.

• EN 433 (European Standard)
  Aligns closely with ISO 24343-1, describing residual indentation testing for resilient floor coverings within the European context.

• ISO 10874
  Classification of resilient floor coverings, relevant for selecting materials to test under ISO 24343-1.

• ISO 14041
  Environmental standards for floor coverings, providing broader lifecycle context when assessing product durability.

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ISO 24343-1:2007 plays a critical role in standardized evaluation of resilient and laminate flooring products, delivering valuable data for material selection, quality assurance, and ensuring long-term performance under load. Adherence to this standard supports industry transparency and helps maintain consistent flooring quality across international markets.

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 24343-1
First edition
2007-06-15
Resilient and laminate floor coverings —
Determination of indentation and residual
indentation —
Part 1:
Residual indentation
Revêtements de sol résilients et stratifiés — Détermination du
poinçonnement et du poinçonnement rémanent —
Partie 1: Poinçonnement rémanent

Reference number
©
ISO 2007
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©  ISO 2007
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
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ISO's member body in the country of the requester.
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ii © ISO 2007 – All rights reserved

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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 24343-1 was prepared by Technical Committee ISO/TC 219, Floor coverings.
ISO 24343 consists of the following parts, under the general title Resilient and laminate floor coverings —
Determination of indentation and residual indentation:
⎯ Part 1: Residual indentation
The following part is planned:
⎯ Part 2: Short term indentation

INTERNATIONAL STANDARD ISO 24343-1:2007(E)

Resilient and laminate floor coverings — Determination of
indentation and residual indentation —
Part 1:
Residual indentation
1 Scope
This part of ISO 24343 describes a method for determining the residual indentation produced in a resilient or
laminate floor covering after the application and removal of a constant load.
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2.1
residual indentation
difference between the initial thickness and the thickness measured after removal of the load
2.2
thickness
distance between two parallel plates where the floor covering is inserted under a specific load
3 Principle
A test piece is subjected to a static loading, the thickness being measured b
...

NORME  ISO
INTERNATIONALE 24343-1
Première édition
2007-06-15
Revêtements de sol résilients
et stratifiés — Détermination du
poinçonnement et du poinçonnement
rémanent —
Partie 1:
Poinçonnement rémanent
Resilient and laminate floor coverings — Determination of indentation
and residual indentation — Part 1: Residual indentation
Numéro de référence
ISO 24343-1:2007(F)
©
ISO 2007
DOCUMENT PROTÉGÉ PAR COPYRIGHT
©  ISO 2007
Droits de reproduction réservés. Sauf prescription différente, 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 et les microfilms, sans l’accord écrit
de l’ISO à l’adresse ci-après ou du comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Version française parue en 2011
Publié en Suisse
ii © ISO 2007 – Tous droits réservés

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 (CEI) en ce qui concerne la normalisation électrotechnique.
Les Normes internationales sont rédigées conformément aux règles données dans les Directives ISO/CEI,
Partie 2.
La tâche principale des comités techniques est d’élaborer les Normes internationales. Les projets de Normes
internationales adoptés par les comités techniques sont soumis aux comités membres pour vote. Leur
publication comme Normes internationales requiert l’approbation de 75 % au moins des comités membres
votants.
L’attention est appelée sur le fait que certains des éléments du présent document peuvent faire l’objet de droits
de propriété intellectuelle ou de droits analogues. L’ISO ne saurait être tenue pour responsable de ne pas avoir
identifié de tels droits de propriété et averti de leur existence.
L’ISO 24343-1 a été élaborée par le comité technique ISO/TC 219, Revêtements de sol.
L’ISO 24343 comprend les parties suivantes, présentées sous le titre général Revêtements de sol résilients et
stratifiés — Détermination du poinçonnement et du poinçonnement rémanent:
—  Partie 1: Poinçonnement rémanent
Il est prévu la partie suivante:
—  Partie 2: Poinçonnement à court terme
© ISO 2007 – Tous droits réservés  iii

NORME INTERNATIONALE ISO 24343-1:2007(F)
Revêtements de sol résilients et stratifiés — Détermination du
poinçonnement et du poinçonnement rémanent —
Partie 1:
Poinçonnement rémanent
1 Domaine d’application
La présente partie de l’ISO 24343 décrit une méthode de détermination du poinçonnement rémanent produit
dans un revêtement de sol résilient ou stratifié après l’application et le retrait d’une charge constante.
2 Termes et définitions
Pour les besoins du présent document, les termes et définitions suivants s’appliquent.
2.1
poinçonnement rémanent
différence entre l’épaisseur initiale et l’épaisseur mesurée après le retrait de la charge
2.2
épaisseur
distance entre deux plaques parallèles dans laquelle le revêtement du sol est inséré sous une charge spécifique
3 Principe
Une éprouvette est soumise à une charge statique, l’épaisseur étant mesurée avant l’application de la charge
et après une période de récupération.
4 Appareillage
4.1 Pénétrateur en acier linéaire, cylindrique, d’un diamètre de 11,30 mm ± 0,05 mm, avec le rebord de la
base plate légèrement arrondi. La surface du pénétrateur est de 100 mm.
4.2 Plate-forme rigide, horizontale, d’un diamètre minimal de 35 mm.
4.3 Dispositif d’application de charge, au moyen duquel une force initiale de 3,00 N ± 0,03 N et une force
totale de 500 N ± 0,5 N (pression 5 MPa) peuvent être appliquées u
...