prEN 13364-2

SLOVENSKI STANDARD
01-maj-2026
Preskušanje naravnega kamna - 2. del: Ugotavljanje lomne obremenitve ob rezu in
kovinskem profilu
Natural stone test methods - Part 2: Determination of the breaking load at kerf slot and
metal profile
Prüfung von Naturstein - Teil 2: Bestimmung der Bruchlast an Schnittspalt und
Metallprofil
Méthodes d'essai pour pierre naturelle - Partie 2: Détermination de l'effort de rupture au
niveau de la rainure et du profilé métallique
Ta slovenski standard je istoveten z: prEN 13364-2
ICS:
73.020 Rudarstvo in kamnolomsko Mining and quarrying
izkopavanje
91.100.15 Mineralni materiali in izdelki Mineral materials and
products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2026
ICS 91.100.15 Will supersede EN 13364:2001
English Version
Natural stone test methods - Part 2: Determination of the
breaking load at kerf slot and metal profile
Méthodes d'essai pour pierre naturelle - Partie 2: Prüfung von Naturstein - Teil 2: Bestimmung der
Détermination de l'effort de rupture au niveau de la Bruchlast an Schnittspalt und Metallprofil
rainure et du profilé métallique
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 246.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
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 supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13364-2:2026 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Principle . 5
5 Symbols . 5
6 Apparatus . 5
7 Preparation of the specimens . 6
7.1 Sampling and position of bedding . 6
7.2 Test specimens . 6
7.2.1 General. 6
7.2.2 Number of specimens . 6
7.2.3 Surface finish of the specimens . 8
7.2.4 Dimensions of the specimens . 8
7.2.5 Location and dimensions of the kerf slots . 9
7.2.6 Cutting the kerf slot . 9
7.2.7 Planes of anisotropy . 9
7.2.8 Conditioning . 9
7.2.9 Measuring d and d . 9
8 Metal profile. 9
8.1 Dimensions and tolerances . 9
8.2 Complex metal profiles . 10
9 Test procedure . 10
10 Expression of the results . 10
11 Test report . 11
Annex A (normative) Statistical evaluation of the test results . 13
Bibliography . 16

European foreword
This document (prEN 13364-2:2026) has been prepared by Technical Committee CEN/TC 246 “Natural
Stone”, the secretariat of which is held by UNI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13364:2001.
This document is one of the series of standards for tests on natural stone.
Test methods for natural stone consist of the following parts:
EN 1925, Natural stone test methods - Determination of water absorption coefficient by capillarity
EN 1926, Natural stone test methods - Determination of compressive strength
EN 1936, Natural stone test methods – Determination of real density and apparent density and of total
open porosity
EN 12370, Natural stone test methods - Determination of resistance to salt crystallization
EN 12372, Natural stone test methods - Determination of flexural strength under concentrated load
EN 12407, Natural stone test methods – Petrographic description
EN 12371, Natural stone test methods - Determination of frost resistance
EN 13161, Natural stone test methods - Determination of flexural strength under constant moment
EN 13373, Natural stone test methods - Determination of geometric characteristics on units
EN 13755, Natural stone test methods - Determination of water absorption at atmospheric pressure
EN 14066, Natural stone test methods - Determination of thermal shock resistance
EN 14581, Natural stone test methods - Determination of thermal dilatation coefficient
EN 14579, Natural stone test methods - Determination of sound - speed propagation
EN 14157, Natural stone test methods - Determination of abrasion resistance
EN 14231, Natural stone test methods - Determination of slip resistance by means of the pendulum tester
EN 14580, Natural stone test methods - Determination of static elastic modulus
EN 14258, Natural stone test methods - Determination of rupture energy
EN 14146, Natural stone test methods - Determination of the dynamic modulus of elasticity (by measuring
the fundamental resonance frequency)
EN 16140, Natural stone test methods - Determination of sensitivity to changes in appearance produced
by thermal cycles
EN 16301, Natural stone test methods - Determination of sensitivity to accidental staining
EN 16306, Natural stone test methods - Determination of resistance of marble to thermal and moisture
cycles.
It is intended that other ENs call up this EN 13364 as the basis of evaluation of conformity.
(Nevertheless it is not intended that all natural stones products are subjected regularly to all the listed
tests. Specifications in other standards are intended to call up only relevant test methods).
This document has an Annex A (normative).
1 Scope
This document specifies a technological test method to determine the breaking load at kerf slot and
metal profile of natural stones used for external or internal cladding or lining in building construction.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
No terms and definitions are listed in this document
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/
4 Principle
This test consists of applying a force in a direction perpendicular to the face of a specimen through a
metal profile previously placed in a kerf slot sawn in one of its sides and measuring the breaking load of
the specimen.
5 Symbols
d is the thickness of the test specimen, in millimetres
d is the distance from the kerf slot to the face where fracture occurs, in millimetres
b is the maximum distance of the central axis of the metal profile to the fracture edge on the
A
face, in millimetres
F is the individual breaking load, in newtons
d is the mean value of d, in millimetres
F is the mean value of F, in newtons
b is the mean value of b , in millimetres
A A
6 Apparatus
6.1 A balance capable of weighing the specimens with an accuracy of 0,01 % of their mass.
6.2 A ventilated oven capable of maintaining a temperature of (70 ± 5) °C.
6.3 A linear measuring device with an accuracy of 0,05 mm.
6.4 A cutting machine equipped with a diamond tipped blade.
6.5 A testing machine of appropriate force in accordance with EN 12390-4 and calibrated according
to this document.
6.6 A clamping device consisting of two metal plates having the shape and sizes shown in Figure 1.
6.7 A device for applying loads perpendicular to the axis of the metal profile (see Figure 2).
6.8 A room or chamber in which the temperature of the air can be maintained at (20 ± 5) °C.
7 Preparation of the specimens
7.1 Sampling and position of bedding
The sampling is not the responsibility of the test laboratory except where specially requested.
The position of any bedding or anisotropy shall be indicated on each specimen by means of at least two
parallel lines.
7.2 Test specimens
7.2.1 General
Technological tes
...