EN ISO 10545-4:2019

Ceramic tiles - Part 4: Determination of modulus of rupture and breaking strength (ISO 10545-4:2019)

This document specifies a test method for determining the modulus of rupture and breaking strength of all ceramic tiles.
NOTE       ISO 13006 provides property requirements for tiles and other useful information on these products.

Keramische Fliesen und Platten - Teil 4: Bestimmung der Biegefestigkeit und der Bruchlast (ISO 10545-4:2019)

Carreaux et dalles céramiques - Partie 4: Détermination de la résistance à la flexion et de la force de rupture (ISO 10545-4:2019)

Le présent document spécifie une méthode d'essai pour la détermination de la résistance à la flexion et la force de rupture pour tous les carreaux et dalles céramiques.
NOTE       L'ISO 13006 spécifie les exigences relatives aux propriétés des carreaux et dalles, et fournit d'autres informations utiles sur ces produits.

Keramične ploščice - 4. del: Ugotavljanje sile pri zlomu in upogibne trdnosti (ISO 10545-4:2019)

Ta dokument določa preskusno metodo za določanje sile pri zlomu in upogibne trdnosti vseh keramičnih ploščic.
OPOMBA: Standard ISO 13006 določa zahteve za lastnosti ploščic in druge koristne informacije o teh izdelkih.

General Information

• Status: Published
• Publication Date: 26-Mar-2019
• Withdrawal Date: 29-Sep-2019
• ICS: 91.100.23 - Ceramic tiles
• Technical Committee: CEN/TC 67 - Ceramic tiles
• Drafting Committee: CEN/TC 67 - Ceramic tiles
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 27-Mar-2019
• Completion Date: 27-Mar-2019
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Ref Project: SIST EN ISO 10545-4:2019 - Ceramic tiles - Part 4: Determination of modulus of rupture and breaking strength (ISO 10545-4:2019)

Relations

• Replaces: EN ISO 10545-4:2014 - Ceramic tiles - Part 4: Determination of modulus of rupture and breaking strength (ISO 10545-4:2014)
• Effective Date: 03-Apr-2019

Overview

EN ISO 10545-4:2019 - "Ceramic tiles - Part 4: Determination of modulus of rupture and breaking strength (ISO 10545-4:2019)" is the CEN-adopted international test method for measuring the mechanical flexural performance of ceramic tiles. The standard specifies how to determine the breaking load, breaking strength, and modulus of rupture for all ceramic tiles using a central-load bending test and defines sample selection, test apparatus, procedure and calculation rules.

Key topics and technical requirements

• Scope: Applies to all ceramic tiles; provides a laboratory method to quantify flexural resistance.
• Test principle: Apply a force at a specified rate to the tile centre (glazed or proper surface uppermost) until fracture; record breaking load and compute breaking strength and modulus of rupture.
• Definitions & calculations:
  • Breaking load (F): force at fracture (read from pressure gauge).
  • Breaking strength (S): breaking load × (span between support rods / specimen width).
  • Modulus of rupture (R): breaking strength divided by the square of the tile’s minimum thickness along the broken edge.
• Apparatus:
  • Drying oven (105 ± 5 °C) or equivalent drying system.
  • Recording pressure gauge (accuracy 2.0%).
  • Two support rods and one central loading rod covered with rubber (hardness 50 ± 5 IRHD per ISO 48-2); rod diameters, rubber thickness and overlap depend on tile size (see Table 1 in the standard).
• Specimens & sampling:
  • Requirements differ by work size thickness (≥ 7.5 mm vs < 7.5 mm) and tile area.
  • Whole tiles are preferred; large formats are cut following specified rules to preserve aspect ratio and centre position.
  • Minimum number of specimens varies with tile area and thickness - consult the standard tables for exact sampling and acceptance criteria.
• Procedure:
  • Remove loose particles, dry specimens (≥24 h at 105 ± 5 °C), cool to room temperature and test within 3 h.
  • Place specimen on support rods and apply central load until break; record and report results per the standard’s test report format.

Applications and users

• Who uses it: ceramic tile manufacturers, independent testing laboratories, product certification bodies, R&D teams, architects, specifiers and procurement departments requiring verified mechanical performance data.
• Practical uses:
  • Verifying product performance for technical datasheets and compliance.
  • Comparing tile types (porcelain, glazed, large-format) for structural suitability.
  • Supporting conformity assessment, product classification and quality control.
  • Informing installation guidance where bending resistance is critical (e.g., large-format tiles, façades, floors over substructures).

Related standards

• ISO 13006 - referenced for property requirements and additional product information.
• ISO 48-2 - referenced for rubber hardness measurement (IRHD) used on support/load pads.

For precise dimensions, sampling counts and calculation formulas, consult the full EN ISO 10545-4:2019 text. Keywords: EN ISO 10545-4:2019, ceramic tiles, modulus of rupture, breaking strength, test method, tile testing, CEN.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2019
Nadomešča:
SIST EN ISO 10545-4:2014
Keramične ploščice - 4. del: Ugotavljanje sile pri zlomu in upogibne trdnosti (ISO
10545-4:2019)
Ceramic tiles - Part 4: Determination of modulus of rupture and breaking strength (ISO
10545-4:2019)
Keramische Fliesen und Platten - Teil 4: Bestimmung der Biegefestigkeit und der
Bruchlast (ISO 10545-4:2019)
Carreaux et dalles céramiques - Partie 4: Détermination de la résistance à la flexion et
de la force de rupture (ISO 10545-4:2019)
Ta slovenski standard je istoveten z: EN ISO 10545-4:2019
ICS:
91.100.23 Keramične ploščice Ceramic tiles
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 10545-4
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2019
EUROPÄISCHE NORM
ICS 91.100.23 Supersedes EN ISO 10545-4:2014
English Version
Ceramic tiles - Part 4: Determination of modulus of
rupture and breaking strength (ISO 10545-4:2019)
Carreaux et dalles céramiques - Partie 4: Keramische Fliesen und Platten - Teil 4: Bestimmung
Détermination de la résistance à la flexion et de la force der Biegefestigkeit und der Bruchlast (ISO 10545-
de rupture (ISO 10545-4:2019) 4:2019)
This European Standard was approved by CEN on 15 February 2019.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10545-4:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 10545-4:2019) has been prepared by Technical Committee ISO/TC 189
"Ceramic tile" in collaboration with Technical Committee CEN/TC 67 “Ceramic tiles” the secretariat of
which is held by UNI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by September 2019, and conflicting national standards
shall be withdrawn at the latest by September 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 10545-4:2014.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 10545-4:2019 has been approved by CEN as EN ISO 10545-4:2019 without any
modification.
INTERNATIONAL ISO
STANDARD 10545-4
Fourth edition
2019-02
Ceramic tiles —
Part 4:
Determination of modulus of rupture
and breaking strength
Carreaux et dalles céramiques —
Partie 4: Détermination de la résistance à la flexion et de la force
de rupture
Reference number
ISO 10545-4:2019(E)
©
ISO 2019
ISO 10545-4:2019(E)
© ISO 2019
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: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

ISO 10545-4:2019(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Test specimens. 3
7 Procedure. 6
8 Calculation . 6
9 Test report . 7
Bibliography . 8
ISO 10545-4:2019(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).
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 189, Ceramic tile.
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.
This fourth edition cancels and replaces the third edition (ISO 10545-4:2014), which has been
technically revised. The main changes compared to the previous edition are as follows:
— test specimens are tested in different format size according to their work size thickness that can be
minor or greater/equal than 7,5 mm;
— the minimum number of specimen to be tested has been changed.
A list of all parts in the ISO 10545 series can be found on the ISO website.
iv © ISO 2019 – All rights reserved

INTERNATIONAL STANDARD ISO 10545-4:2019(E)
Ceramic tiles —
Part 4:
Determination of modulus of rupture and breaking
strength
1 Scope
This document specifies a test method for determining the modulus of rupture and breaking strength
of all ceramic tiles.
NOTE ISO 13006 provides property requirements for tiles and other useful information on these
...