oSIST prEN 13124-2:2023
(Main)Windows, doors, shutters and curtain walling - Explosion resistance - Test method - Part 2: Arena test
Windows, doors, shutters and curtain walling - Explosion resistance - Test method - Part 2: Arena test
This document specifies a conventional test procedure to permit classification of the explosion resistance of windows, doors, shutters, together with their infills, as well as curtain walling elements.
This document concerns a method of test against blast waves produced by high explosives in an arena test. The loading categories are defined by pressure and impulse parameters and represent free-field high explosive events caused by:
- 3 kg to 20 kg (TNT equivalent) at stand-off distances from 3 m to 9 m, described by the fixed loading levels PXR 1 to PXR 7;
- 100 kg to 500 kg (TNT equivalent) at stand-off distances from about 15 m to 30 m, described by the fixed loading levels VXR 1 to VXR 7.
It produces a classification according to prEN 13123-2:2023.
Scenarios characterized by specified blast parameters for other high explosive scenarios, can also be specified.
Blast loads which cannot be produced in an arena test might be produced by a shock tube test following prEN 13123-1:2022 and prEN 13124-1:2022.
This document is applicable to blast waves generated by explosions in an arena test facility to produce high explosive blast loads on windows, doors and shutters as well as curtain walling systems, complete with their frames, infills and fixings, for use in both internal and external locations in buildings. It gives no information on the explosion resistance capacity of the wall or other surrounding structure.
This document covers only the behaviour of the complete test specimen including infill, frame and fixings as tested. It gives no information on the ability of the surrounding wall or building structure to resist the direct or transmitted forces.
If the windows, doors, shutters and curtain walling components are intended for specific conditions of climate, specific test conditions can be required.
Requirements for the performance of opening and locking mechanisms or for testing in an open condition can also be specified. It gives no information on the behaviour of the test specimens subjected to other types of loading.
Fenster, Türen, Abschlüsse und Vorhangfassaden - Sprengwirkungshemmung - Prüfverfahren - Teil 2: Freilandversuch
Dieses Dokument legt ein Prüfverfahren zur Klassifizierung der Sprengwirkungshemmung von Fenstern, Türen und Abschlüssen einschließlich deren Füllungen sowie Vorhangfassadenelementen fest.
Dieses Dokument befasst sich mit einem Prüfverfahren gegen mit hochexplosiven Sprengmitteln in einem Freilandversuch erzeugte Detonationswellen. Die Belastungskategorien sind durch Druck- und Impuls-parameter definiert und stellen hochexplosive Ereignisse im freien Feld dar, die durch
- 3 kg bis 20 kg (TNT Äquivalent) in einem Abstand von 3 m bis 9 m verursacht werden, beschrieben durch die festen Belastungsstufen PXR 1 bis PXR 7,
- 100 kg bis 500 kg (TNT Äquivalent) in einem Abstand von etwa 15 m bis 30 m verursacht werden, beschrieben durch die festen Belastungsstufen VXR 1 bis VXR 7.
Es erstellt eine Klassifizierung nach prEN 13123-2:2023.
Szenarien, die durch bestimmte Explosionsparameter für andere hochexplosive Szenarien gekennzeichnet sind, können ebenfalls angegeben werden.
Detonationsbelastungen, die nicht in einem Freilandversuch erzeugt werden können, könnten durch eine Stoßrohrprüfung nach prEN 13123-1:2022 und prEN 13124-1:2022 erzeugt werden.
Dieses Dokument kann für Detonationswellen angewendet werden, die durch Explosionen in einer Freilandversuchsanlage erzeugt werden, um die Auswirkungen von hohen Explosionsbelastungen auf Fenster, Türen, Abschlüsse und Vorhangfassadensysteme, einschließlich deren Rahmen, Füllungen und Befestigungen für den Einbau im Innenbereich und Außenbereich von Gebäuden nachzuahmen. Es gibt keinen Aufschluss über die Sprengwirkungshemmung der umgebenden Wand oder sonstigen Gebäudekonstruktion.
Dieses Dokument betrifft nur das Verhalten des vollständigen Prüfkörpers einschließlich deren Füllung, Rahmen und Befestigungen, entsprechend der Prüfung. Diese Norm gibt keinen Aufschluss über die Möglichkeiten der umgebenden Wand oder Gebäudekonstruktion, den direkten oder übertragenen Kräften standzuhalten.
Falls die Fenster, Türen, Abschlüsse und Vorhangfassadenkomponenten zum Einsatz unter besonderen klimatischen Bedingungen vorgesehen sind, können besondere Prüfbedingungen erforderlich sein.
Anforderungen an die Leistungsfähigkeit der Öffnungs- und Schließmechanismen oder an die Prüfung in geöffnetem Zustand können ebenfalls angegeben werden. Es enthält keine Angaben über das Verhalten der Prüfkörper, wenn diese anderen Belastungen ausgesetzt werden.
Fenêtres, portes, fermetures et façades rideaux - Résistance à l'explosion - Méthode d'essai - Partie 2 : Essai en arène
Le présent document spécifie un mode opératoire d'essai conventionnel permettant la classification de la résistance à l'explosion des fenêtres, portes, fermetures, avec leurs remplissages, ainsi que celle des éléments de façades rideaux.
Le présent document concerne une méthode d'essai de résistance aux ondes de choc produites par des explosifs puissants dans un essai en arène. Les catégories de charge sont définies par des paramètres de pression et d'impulsion et représentent de fortes explosions en champ libre causées par :
- 3 kg à 20 kg (équivalent TNT) à des distances de tir de 3 m à 9 m, décrites par les niveaux de charge fixe PXR 1 à PXR 7 ;
- 100 kg à 500 kg (équivalent TNT) à des distances de tir d'environ 15 m à 30 m, décrites par les niveaux de charge fixe VXR 1 à VXR 7.
Cette méthode permet d'obtenir une classification selon la norme prEN 13123-2:2023.
Des scénarios caractérisés par des paramètres d'explosion spécifiés pour d'autres scénarios d'explosifs puissants peuvent également être spécifiés.
Les ondes de choc qui ne peuvent pas être produites lors d'un essai en arène peuvent être produites par un essai de tube à effet de souffle (shock tube) conformément aux normes prEN 13123-1:2022 et prEN 13124-1:2022.
Le présent document s'applique aux ondes de choc générées par des explosions dans une installation d'essai en arène, pour produire des ondes de choc avec des explosions puissantes sur des fenêtres, des portes et des fermetures, ainsi que sur des systèmes de façades rideaux, y compris sur leurs dormants, leurs remplissages et leurs fixations, à l'intérieur et à l'extérieur des bâtiments. Il ne donne aucune information quant à la capacité de résistance à l'explosion du mur ou de la structure environnante.
Le présent document couvre uniquement le comportement de l'éprouvette complète, comprenant le remplissage, le dormant et les fixations tels que soumis à essai. Il ne donne aucune information sur la capacité du mur adjacent ou de la structure du bâtiment à résister aux forces appliquées directement ou transmises.
Si les fenêtres, les portes, les fermetures ou les composants de façades rideaux sont destinés à être utilisés dans des conditions climatiques particulières, des conditions d'essai spécifiques peuvent être requises.
Les exigences relatives aux performances des mécanismes d'ouverture et de verrouillage ou aux essais en condition ouverte peuvent également être spécifiées. Le présent document ne donne aucune information sur le comportement des éprouvettes soumises à d'autres types de charges.
Okna, vrata, polkna in obešene fasade - Odpornost proti eksplozijam - Preskusna metoda - 2. del: Preskus v areni
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 13124-2:2023
01-oktober-2023
Nadomešča:
SIST EN 13124-2:2004
Okna, vrata, polkna in obešene fasade - Odpornost proti eksplozijam - Preskusna
metoda - 2. del: Preskus v areni
Windows, doors, shutters and curtain walling - Explosion resistance - Test method - Part
2: Arena test
Fenster, Türen, Abschlüsse und Vorhangfassaden - Sprengwirkungshemmung -
Prüfverfahren - Teil 2: Freilandversuch
Fenêtres, portes, fermetures et façades rideaux - Résistance à l'explosion - Méthode
d'essai - Partie 2 : Essai en arène
Ta slovenski standard je istoveten z: prEN 13124-2
ICS:
13.230 Varstvo pred eksplozijo Explosion protection
91.060.50 Vrata in okna Doors and windows
oSIST prEN 13124-2:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 13124-2:2023
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oSIST prEN 13124-2:2023
DRAFT
EUROPEAN STANDARD
prEN 13124-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2023
ICS 13.230; 91.060.50 Will supersede EN 13124-2:2004
English Version
Windows, doors, shutters and curtain walling - Explosion
resistance - Test method - Part 2: Arena test
Portes, fenêtres et fermetures - Résistance à l'explosion Fenster, Türen und Abschlüsse -
-Méthode d'essai - Partie 2: Essai en plein air Sprengwirkungshemmung - Prüfverfahren - Teil 2:
Freilandversuch
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 33.
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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13124-2:2023 E
worldwide for CEN national Members.
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oSIST prEN 13124-2:2023
prEN 13124-2:2023 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Requirements . 7
5 Apparatus . 8
5.1 Explosive test range . 8
5.2 Reaction structure . 8
5.3 Connections . 8
5.4 Equipment for measuring . 9
6 Explosive charge. 10
7 Test specimen . 11
8 Procedure . 11
8.1 Installation . 11
8.2 Test – Explosion pressure resistance (PXR and VXR) . 12
8.3 Pressure or impulse outside the specified tolerances . 12
9 Sequence of the test . 12
10 Evaluation of results . 13
10.1 General. 13
10.2 Hazard class . 13
10.3 Classification. 16
10.4 Test in open condition . 16
10.5 Test results . 17
11 Test report . 17
12 Test report summary . 18
Annex A (informative) External hazard evaluation . 19
Bibliography . 20
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oSIST prEN 13124-2:2023
prEN 13124-2:2023 (E)
European foreword
This document (prEN 13124-2:2023) has been prepared by Technical Committee CEN/TC 33 “Doors,
windows, shutters, building hardware and curtain walling”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13124-2:2004.
In comparison with the previous edition EN 13124-2:2004, the following technical modifications have
been made:
— inclusion of façade testing;
— inclusion of hazard classes and the measurement connected to them;
— addition of term 3.7.3 “internal pressure”;
— addition of test procedures for open condition;
— addition of the requirements for test setup and its connection to the test sample;
— editorial changes.
The EN 13124 series of standards Windows, doors, shutters and curtain walling — Explosion
resistance — Test method currently consists of:
— Part 1: Shock tube;
— Part 2: Arena test.
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prEN 13124-2:2023 (E)
1 Scope
This document specifies a conventional test procedure to permit classification of the explosion
resistance of windows, doors, shutters, together with their infills, as well as curtain walling elements.
This document concerns a method of test against blast waves produced by high explosives in an arena
test. The loading categories are defined by pressure and impulse parameters and represent free-field
high explosive events caused by:
— 3 kg to 20 kg (TNT equivalent) at stand-off distances from 3 m to 9 m, described by the fixed
loading levels PXR 1 to PXR 7;
— 100 kg to 500 kg (TNT equivalent) at stand-off distances from about 15 m to 30 m, described by the
fixed loading levels VXR 1 to VXR 7.
It produces a classification according to prEN 13123-2:2023.
Scenarios characterized by specified blast parameters for other high explosive scenarios, can also be
specified.
Blast loads which cannot be produced in an arena test might be produced by a shock tube test following
prEN 13123-1:2022 and prEN 13124-1:2022.
This document is applicable to blast waves generated by explosions in an arena test facility to produce
high explosive blast loads on windows, doors and shutters as well as curtain walling systems, complete
with their frames, infills and fixings, for use in both internal and external locations in buildings. It gives
no information on the explosion resistance capacity of the wall or other surrounding structure.
This document covers only the behaviour of the complete test specimen including infill, frame and
fixings as tested. It gives no information on the ability of the surrounding wall or building structure to
resist the direct or transmitted forces.
If the windows, doors, shutters and curtain walling components are intended for specific conditions of
climate, specific test conditions can be required.
Requirements for the performance of opening and locking mechanisms or for testing in an open
condition can also be specified. It gives no information on the behaviour of the test specimens subjected
to other types of loading.
2 Normative references
The following documents are referred to in the text in such a way that some or all of 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.
prEN 13123-1:2022, Windows, doors, shutters and curtain walling — Explosion resistance —
Requirements and classification — Part 1: Shock tube
prEN 13123-2:2023, Windows, doors, shutters and curtain walling — Explosion resistance —
Requirements and classification — Part 2: Arena test
EN 13164, Thermal insulation products for buildings — Factory made extruded polystyrene foam (XPS)
products — Specification
ISO 16934, Glass in building — Explosion-resistant security glazing — Test and classification by shock-
tube loading
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3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
test specimen
window, door, shutter or curtain walling specimen, which is prepared and submitted for testing
3.2
attack face
face of the test specimen, which is designed to face the explosion
3.3
rear face
opposite side of the test specimen to the attack face
3.4
reaction structure
robust structure in which a test specimen can be mounted for blast testing
3.5
gauge block
structure providing a plane non-deforming surface positioned at the same stand-off distance as the test
sample, on which reflected pressure gauges can be mounted
3.6
explosion pressure resistance
PXR/VXR
resistance offered by the test specimen against a defined blast wave, characterised by peak positive
reflected pressure and peak positive specific impulse
3.7
blast wave
explosion pressure wave loading on the test specimen
Note 1 to entry: The pressure recorded and referred to shall be the reflected pressure experienced by the test
specimen when it is positioned at the end of the shock tube.
3.7.1
positive reflected pressure
p
r
pressure that occurs when a blast wave strikes the surface of a target, which obstructs the flow
Note 1 to entry: The blast wave moving through the air impacts the test specimen and is reflected producing a
pressure on the surface of the test specimen having a higher value than would have occurred within an
unobstructed flow.
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prEN 13124-2:2023 (E)
3.7.2
peak positive reflected pressure
p
max
pressure above the ambient atmospheric pressure at the time of arrival of the pulse at the test specimen
3.7.3
internal pressure
pressure that is recorded inside the test cubical
Note 1 to entry: For both closed and open windows, this pressure is measured 1 m behind the inner face of the
test specimen. This will be measured from the inner glass or the inner face of the door.
3.7.4
pressure trace
graph of the pressure plotted against time
Note 1 to entry: See prEN 13123-2:2023, Figure 1.
3.7.5
peak positive reflected specific impulse
i
+
parameter that is derived from the area under the pressure trace during the first positive phase
duration
Note 1 to entry: See hatched area in prEN 13123-2:2023, Figure 1.
3.8
top corner of the test specimen
extreme point on the test specimen at which the test impulse is assessed to ensure clearing effects are
managed
3.9
expected value at the test corner
expected blast parameters at the top corner of the test specimen
Note 1 to entry: The expected blast parameters at the top corner of the test specimen are the peak positive
reflected pressure and the peak positive reflected specific impulse that would be expected at the top corner of the
test specimen if it were mounted in a semi-infinite façade and the blast parameters at the centre of the test
specimen are the specified blast parameters.
3.10
stand-off distance
horizontal distance from the centre of the charge to the face of the test specimen
3.11
charge height
vertical distance between the centre of the charge and the surface of the test range
3.12
witness panel
panel of deformable material positioned behind the test specimen in order to register the incidence of
material forcibly detached from the test specimen during test
Note 1 to entry: The composition and location of the witness panel is described in 6.4, d).
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3.13
penetration
indentation in the foil, cartridge paper or plain surface of the witness panel caused by the impact of any
material as a result of the blast
3.14
perforation
hole completely through the foil, cartridge paper or witness panel caused by the impact of any material
as a result of the blast
3.15
united dimension
dimension of a particle determined by adding its width and length and thickness
3.16
open condition
condition that permits some of the test pressure to be applied on the rear face of the test specimen
Note 1 to entry: The conditions are specified by the test client.
4 Requirements
To achieve a particular class of explosion resistance, the test specimen shall:
a) be subjected to a blast pressure wave generated by the detonation of a high explosive charge. The
peak positive reflected pressure and the peak positive reflected specific impulse at the centre of the
test specimen shall both be within the tolerances in prEN 13123-2:2023. Additionally, the peak
positive reflected specific impulse at the top corner of the test specimen shall be assessed in
accordance with prEN 13123-2:2023;
b) the internal damage will be assessed against the criteria shown in Table 1 and that letter code will
be appended to the explosion resistance class
and
c) if required by the test client, the external damage can be assessed against the criteria shown in
Table A.1 and that letter code will also be appended to the explosion resistance class.
Classification requirements for the explosion resistance of windows, doors, shutters and curtain walling
are given in prEN 13123-2:2023.
Additional requirements with respect to special conditions for surface temperatures or other boundary
conditions should be agreed between the test client and the test facility prior to a test as being suitable
for the purpose.
The test client should also specify any additional requirements for the locking and opening mechanisms
or whether the test specimen shall be tested in a partially open condition to replicate designs
incorporating natural ventilation for example.
For the classification of the test specimen one test fulfilling the requirements of this document is
required.
The test shall be performed by a competent test facility. The competent test facility performing the test
shall be able to demonstrate that work is in conformity with the requirements of internationally
accepted standards for test laboratories.
NOTE 1 EN ISO/IEC 17025 is a harmonized internationally accepted standard that applies.
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NOTE 2 A formal accreditation by a member body of the European Accreditation Organization to
EN ISO/IEC 17025 is a demonstration of conformity.
5 Apparatus
5.1 Explosive test range
It is an area of ground where a test specimen may be installed and a high explosive charge may be
detonated to produce a blast pressure wave for testing the explosion resistance of windows, doors,
shutters and curtain walling. The test range should be on cleared, level ground and any loose material
shall be removed to ensure that damage cannot be caused by the blast wave projecting such material
into the test specimen.
5.2 Reaction structure
The reaction structure shall be a construction in which the test specimen (window, door or curtain
walling) and the fixings may be securely attached. It shall:
a) be sufficiently strong to resist the explosive forces without imparting deformations to the test
specimen that do not represent real situations as defined by the test client. This shall be
demonstrated by the test facility;
b) either be anchored to the ground or be sufficiently heavy so that it is not moved by the blast wave;
c) the face of the structure shall be large enough to ensure clearing effects are limited. If necessary
extensions may be used;
d) be closed on all sides and prevent the passage of blast pressure other than through deformation of
the test specimen or if the test specimen design includes openings for ventilation purposes. Internal
pressure shall be recorded by a pressure gauge and should be documented in the test report. In
case of partially closed windows, this internal peak overpressure should not exceed the lesser of
10 % of the peak positive reflected pressure or 20 kPa and the difference between internal and
external peak overpressure should not be less than the classified peak positive reflected pressure.
In addition, the reduction of the peak positive reflected specific impulse due to the internal
pressure should be less than 10 %. The internal pressure shall be documented in the test report;
e) allow pressure gauges to be mounted next to the attack face and in the same plane as the test
specimen. Alternatively reflected pressure gauges may be mounted in a separate gauge block;
f) in order to limit clearing effects, the test facility must verify that the loading at the corner of the test
specimen is within the tolerances specified in 8.2;
g) any additional or purpose-made frames, supports, connections, fixing points methods, technical or
functional conditions and their designs shall be agreed between the test client and the test facility
prior to a test as being suitable for the purpose and should be part of the test report.
5.3 Connections
Connections are the fixings which integrate the test specimen into the reaction structure. They shall
allow the test specimen to be installed in a manner representative of its built condition without
imposing abnormal stresses. The test client should provide installation instructions for the test
including the number, specification and location of fixings and these should be included in the test
report.
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The fixings should neither be more ductile nor weaker than in a real installation. Furthermore, the
fixings should not be stiffer or stronger than in a real installation.
5.4 Equipment for measuring
Equipment shall comprise:
a) thermometers suitable for measuring the ambient air temperature and the temperature of the
attack and the rear face of the test specimen taking into account variations due to shade, sunlight or
other weather conditions to an accuracy of ± 1 °C. Measurements have to be taken at the time of the
test;
b) a barometer suitable for measuring the ambient air pressure outside the shock tube to an accuracy
of ± 0,2 kPa;
c) pressure gauges are instrumentation systems for measuring and recording the pressure history of
the blast wave. These shall be: gauges incorporating piezoelectric/piezoresistive or equivalent
pressure transducers with:
1) full scale range of 0 to 500 kPa (absolute);
2) resonance frequency greater than 50 kHz;
3) transducer resolution less than 0,1 kPa;
4) nonlinearity less than 1 %.
Gauges shall be placed on a gauge block of the same dimensions as the reaction structure and at the
same distance from the charge to measure the actual pressures or sufficient gauges shall be
positioned to collect pressure records from which the loading on the test specimen can be derived
using suitably verified and validated blast analysis software. The gauges shall be at the same stand-
off distance as the test specimen.
At least three gauges should be deployed at each location so that any gauges providing faulty
readings can be identified and those gauges’ data can be discarded;
d) data recorders should have:
1) the capability to record at a minimum sample rate of 100 samples per millisecond (100 kHz);
2) a time base range of at least 1 000 milliseconds;
3) a pre-trigger range of at least 100 milliseconds;
4) a hardware (analogue) anti-aliasing, low pass band limited filter at greater than 10 kHz;
5) a bandwidth greater than the frequency of the filter;
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e) witness panels shall be deployed behind each test specimen. These panels shall be parallel to the
plane of the specimen and shall be placed at a horizontal distance of 3,0 m ± 0,15 m measured from
the rear face of the glazed components of the test specimen to the front face of the witness panel.
The witness panel shall cover the full area projected behind the specimen and extend down to the
floor of the test setup. The witness panel shall have a width at least that of the test specimen, and a
height extending from the level of the floor to 200 mm above the top of the test specimen, or the
ceiling of the reaction structure if less. The witness panels shall meet the following specification:
1) a thickness of at least 35 mm of extruded polystyrene foam in accordance with EN 13164 with
2
a compressive strength of 300 kN/m ;
2) test facilities may consider facing the front face of the polystyrene foam witness panels with
either aluminium foil, not more than 0,025 mm thick, or with cartridge paper of weight
2 2
between 100 g/m and 150 g/m to aid the recording of fragment impacts;
3) to accommodate high-speed photography, a hole no greater than 150 mm × 150 mm may be
made in the top or bottom corner of the witness panel within an area bounded by one third of
the height and width of the panel;
f) data recorders should have:
1) still photography is mandatory, and a photographic record shall be taken of each test specimen
before and immediately after the test, irrespective of any waiting time before the hazard
assessment. No displaced or damaged objects shall be moved prior to post-test photographic
records being made of their position;
2) high-speed video (HSV) is optional. However, it is recommended that at least one external and
one internal HSV view of the test specimen is obtained to assist in assessment of the test
specimen’s overall performance.
6 Explosive charge
The test facility shall select a suitable type of high explosive, charge size and range to produce the
specified peak positive reflected pressure and the peak positive reflected specific impulse within the
tolerances according to prEN 13123-2:2023, Clause 5.
The explosive charge shall be spherical and shall be detonated centrally. If a charge container is used it
shall be made of a material that will not produce fragments.
The charge height shall be:
— PXR 1 to PXR 4: 0,5 m;
— PXR 5 to PXR 7: 0,8 m.
For VXR classes and user defined loading categories, the test facility shall ensure that a suitable charge
height is selected.
Where there is a risk of the ground being disturbed by the explosion, a blast mat or other suitable
protection shall be employed to prevent any material being projected at the test specimens and causing
fragmentation damage.
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7 Test specimen
The test specimen shall be representative of the relevant window, door, shutter or curtain walling
element. For curtain walling systems the dimension of the specimen shall be sufficiently large to ensure
that all elements of the full system are evaluated. Care should be taken to ensure that all joints between
the wall and the window or door have protection, which is at least equal to that of the window or door.
The test specimen shall be of sufficient size to provide a realistic loading of all necessary components
within the system (e.g. it may not be appropriate to test a single pane as representative of a curtain
walling system as the support conditions in a rigid reaction structure may not correctly replicate the
loading on mullions, transoms and frame connections in a full-size curtain walling system installation).
Care shall also be taken to ensure that the test specimen support conditions reflect the proposed
installation and do not affect the test specimen’s response during the test.
For stick system curtain walling, the test specimen shall be of a minimum size to incorporate a vertical
span of one storey and a horizontal span of three bays.
If the system is designed to span more than one floor, then the test specimen shall be constructed in a
suitable size and manner to reflect the installation.
The method of fixing to the reaction structure and the test boundary conditions shall be agreed between
the test facility and the test client and documented in the test report. The attack face shall be clearly
marked.
Architectural elements and other items such as brise-soleil, architectural panels, service ducts and
shafts or any other additional components, where they are included as part of the designed system
being assessed, should be included in both the test and the subsequent hazard rating assessment
process.
The test client shall supply drawings showing dimensions and all other details of the test specimen to
scale, together with description and composition of all materials (including full details of the build-up
especially the types and subtypes of any interlayers) and fixings.
The drawings are part of the documentation in the test report identifying the analysed test specimen.
8 Procedure
8.1 Installation
Install the test specimen in the reaction structure, ensuring that:
a) the alignment/relationship between all components is correct;
b) the fixings do not create abnormal stresses in the test specimen;
c) no undesigned opening exists between/around the test specimen and the reaction structure;
d) the hardware, mechanisms, movable sashes and door leaves are operable;
e) the method of fixing and type/quantity of fixings used are identical in all respects to the intended
application;
f) pressure gauges are installed in suitably shaped, robust mountings designed to minimize vibration
effects. A minimum of three gauges shall be used to record the blast pressures (reflected pressure
history) experienced by the attack face of the test specimen. Records shall be taken to permit the
evaluation of the test in accordance with Clause 9;
11
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