oSIST prEN 747-2:2022
(Main)Furniture - Bunk beds and high beds - Part 2: Test methods
Furniture - Bunk beds and high beds - Part 2: Test methods
This document specifies test methods for the safety, strength and durability of bunk beds and high beds for domestic and non-domestic use. The tests apply to beds with an internal length greater than 1 400 mm and a maximum bed base width of 1 200 mm and with the upper surface of a bed base 600 mm or more above the floor.
The tests are designed to be applied to a bed that is fully assembled and ready for use.
The applicable safety requirements are given in prEN 747-1:2022.
Möbel - Etagenbetten und Hochbetten - Teil 2: Prüfverfahren
Dieses Dokument legt Prüfverfahren für die Sicherheit, Festigkeit und Dauerhaltbarkeit von Etagenbetten und Hochbetten für die Nutzung im Wohn und Nicht Wohnbereich fest. Die Prüfungen gelten für Betten mit einer inneren Länge von mehr als 1 400 mm und einer Höchstbreite des Bettbodens von 1 200 mm, bei denen sich die Oberseite eines Bettbodens 600 mm oder mehr über der Stellfläche befindet.
Die Prüfungen sind für die Anwendung bei einem vollständig zusammengebauten und gebrauchsfertigen Bett ausgelegt.
Die zutreffenden sicherheitstechnischen Anforderungen sind in prEN 747 1:2022 angegeben.
Meubles - Lits superposés et lits surélevés - Partie 2: Méthodes d'essai
Le présent document spécifie des méthodes d’essai pour évaluer la sécurité, la résistance et la durabilité des lits superposés et des lits surélevés à usage domestique et collectif. Les essais s’appliquent aux lits dont la longueur intérieure est supérieure à 1 400 mm, dont la largeur du sommier est au maximum de 1 200 mm et dont la face supérieure du sommier se trouve au moins à 600 mm au-dessus du sol.
Les essais sont conçus pour être appliqués à un lit entièrement assemblé et prêt à l’emploi.
Les exigences de sécurité applicables sont énoncées dans le prEN 747-1:2022.
Pohištvo - Pogradi in visoke postelje - 2. del: Preskusne metode
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 747-2:2022
01-september-2022
Pohištvo - Pogradi in visoke postelje - 2. del: Preskusne metode
Furniture - Bunk beds and high beds - Part 2: Test methods
Möbel - Etagenbetten und Hochbetten - Teil 2: Prüfverfahren
Meubles - Lits superposés et lits surélevés - Partie 2: Méthodes d'essai
Ta slovenski standard je istoveten z: prEN 747-2
ICS:
97.140 Pohištvo Furniture
oSIST prEN 747-2:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 747-2:2022
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oSIST prEN 747-2:2022
DRAFT
EUROPEAN STANDARD
prEN 747-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2022
ICS 97.140 Will supersede EN 747-2:2012+A1:2015
English Version
Furniture - Bunk beds and high beds - Part 2: Test
methods
Meubles - Lits superposés et lits surélevés - Partie 2: Möbel - Etagenbetten und Hochbetten - Teil 2:
Méthodes d'essai Prüfverfahren
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 207.
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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 747-2:2022 E
worldwide for CEN national Members.
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oSIST prEN 747-2:2022
prEN 747-2:2022 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General test conditions . 5
4.1 Preliminary preparation . 5
4.2 Application of forces . 6
4.3 Tolerances . 6
5 Test equipment . 6
5.1 General . 6
5.2 Test probes . 6
5.2.1 Finger probes with hemispherical end . 6
5.2.2 Shape assessment probe . 7
5.2.3 Other probes . 7
5.3 Bed base impactor . 8
5.3.1 Circular body . 8
5.3.2 Springs . 8
5.3.3 Striking surface . 9
5.4 Loading pads . 9
5.5 Test mattress . 9
5.5.1 General . 9
5.5.2 Usage . 10
5.6 Test mass . 10
5.7 Stops . 10
5.8 Floor surface . 10
5.9 Tread impactor . 10
5.10 Template for V-shaped openings . 11
5.11 Foam. 12
6 Test procedures . 12
6.1 Inspection before testing. 12
6.2 Inspection of product . 12
6.3 Measurements . 13
6.3.1 Holes, gaps and openings . 13
6.3.2 V and irregular shaped holes, gaps and openings . 13
6.4 Strength and durability tests . 15
6.4.1 Positioning of the bed . 15
6.4.2 Test of the bed base and safety barrier . 15
6.4.3 Test of the safety barriers around bed . 17
6.4.4 Durability test of frame and fastenings . 18
6.4.5 Test of means of access . 18
6.4.6 Test of platforms and platform barriers . 20
6.5 Stability test . 21
6.6 Fastening of the top bed to the bottom bed . 21
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oSIST prEN 747-2:2022
prEN 747-2:2022 (E)
European foreword
This document (prEN 747-2:2022) has been prepared by Technical Committee CEN/TC 207 “Furniture”,
the secretariat of which is held by UNI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 747-2:2015.
In comparison with the previous edition, the following technical modifications have been made:
— Conditions of preliminary preparation;
— Improvement of description, addition of some test equipment;
— Alignment of the test method on holes, gaps and openings, to follow prEN 747-1;
— Addition of a horizontal static load test on safety barriers;
— Addition of strength tests on the safety barriers;
— Addition of static and impact tests for handrails, platforms and platform barriers.
EN 747 is divided into the following parts:
— EN 747-1, Furniture — Bunk beds and high beds — Part 1: Safety, strength and durability
requirements;
— EN 747-2, Furniture — Bunk beds and high beds — Part 2: Test methods.
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oSIST prEN 747-2:2022
prEN 747-2:2022 (E)
Introduction
This part of EN 747 describes a number of tests consisting of the application, to various parts of bunk
beds and high beds, of loads or forces intended to represent one adult occupant per bed during normal
functional use. It also deals with misuses that can be reasonably expected to occur.
The tests are designed to evaluate properties without regard for materials, design/construction or
manufacturing processes.
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oSIST prEN 747-2:2022
prEN 747-2:2022 (E)
1 Scope
This document specifies test methods for the safety, strength and durability of bunk beds and high beds
for domestic and non-domestic use. The tests apply to beds with an internal length greater than 1 400 mm
and a maximum bed base width of 1 200 mm and with the upper surface of a bed base 600 mm or more
above the floor.
The tests are designed to be applied to a bed that is fully assembled and ready for use.
The applicable safety requirements are given in prEN 747-1:2022.
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 747-1:2022, Furniture — Bunk beds and high beds — Part 1: Safety, strength and durability
requirements
EN ISO 2439:2008, Flexible cellular polymeric materials — Determination of hardness (indentation
technique) (ISO 2439:2008)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in prEN 747-1:2022 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
4 General test conditions
4.1 Preliminary preparation
For furniture that includes hygroscopic materials, at least one week in normal indoor conditions shall
have elapsed between manufacturing (or assembly) and testing.
For all other furniture, at least 48 h in normal indoor conditions shall have elapsed prior to testing.
The bed shall be tested as delivered. Knock-down beds shall be assembled according to the
manufacturer’s instructions. If the instructions allow the bed to be assembled or combined in different
ways, the most adverse combination shall be used for each test. Knock-down fittings shall be tightened
before testing. Further tightening shall not take place unless specifically required by the manufacturer. If
the configuration shall be changed to produce the worst-case conditions, this shall be recorded in the test
report.
The tests shall be carried out in indoor ambient conditions at a temperature between 15 °C and 25 °C.
The tests shall be carried out on the same bed and following the order of the clauses of prEN 747-1:2022.
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oSIST prEN 747-2:2022
prEN 747-2:2022 (E)
If a test cannot be carried out as specified in this standard, e.g. because a loading pad cannot be used for
the application of a force due to the design of the product, the test can be carried out as closely as possible
to the specified procedure. Any modification to the test method shall be technically justified and recorded
in the test report.
4.2 Application of forces
The test forces in durability and static load tests shall be applied sufficiently slowly to ensure that
negligible dynamic load is applied.
The forces in durability tests shall be applied sufficiently slowly to ensure that kinetic heating does not
occur.
Unless otherwise specified, static loads shall be maintained for (10 ± 2) s. Unless otherwise specified,
durability loads shall be applied for (2 ± 1) s.
The forces may be replaced by masses. The relationship of 10 N = 1 kg shall be used.
4.3 Tolerances
Unless otherwise stated, the following tolerances are applicable to the test equipment:
— forces shall have an accuracy of ± 5 % of the nominal force;
— masses shall have an accuracy of ± 1 % of the nominal mass;
— dimensions less than 200 mm shall have an accuracy of ±1 mm of the nominal dimension;
— other dimensions shall have an accuracy of ±0,5 % of the nominal dimension;
— angles shall have an accuracy of ± 2 ° of the nominal angle.
The tolerance for the positioning of loading pads shall be ± 5 mm.
NOTE For the purposes of uncertain measurements, test results are not considered to be adversely affected
when the above tolerances are met.
5 Test equipment
5.1 General
The test forces may, unless otherwise stated, be applied by any suitable device, as results only depend on
correctly applied forces and loads and not on the apparatus.
The equipment shall be capable of following the deformation of the unit/component during testing so
that the loads are always applied at specified points and in specified directions.
5.2 Test probes
5.2.1 Finger probes with hemispherical end
Probes with hemispherical ends made of plastics or other hard, smooth material, mounted on a force-
measuring device, see Figure 1.
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oSIST prEN 747-2:2022
prEN 747-2:2022 (E)
Dimensions in millimetres
Key
1 hemispherical end
2 line around circumference
+0 +0,1
3
Ø 7 mm and Ø 12 mm
−0.1 0
Figure 1 — Finger probe with hemispherical end
5.2.2 Shape assessment probe
Probe made of plastics or other hard smooth materials with the dimensions shown in Figure 2.
Dimensions in millimetres
Key
A side view
B top view
C end view
D isometric view
Figure 2 — Shape assessment probe
5.2.3 Other probes
Probes with the ends at an angle of 30° ± 0,5° made of plastics or other hard, smooth material each with
+0,1 0 −0,1
a diameter ( ) mm, ( ) mm and ( ) mm with rounded or conical ends, see Figure 3.
25 60 75
0 +0,1 0
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oSIST prEN 747-2:2022
prEN 747-2:2022 (E)
Figure 3 — Other probes
5.3 Bed base impactor
5.3.1 Circular body
The bed base impactor is shown in Figure 4. The impactor is comprised of the following elements. The
circular body is 200 mm in diameter, separated from the striking surface by helical compression springs
and free to move relative to it on a line perpendicular to the plane of the central area of the striking
surface. The body and associated parts minus the springs shall have a mass of (17 ± 0,1) kg and the whole
apparatus, including mass, springs and striking surface, shall have a mass of (25 ± 0,1) kg.
5.3.2 Springs
Springs shall be such that the nominal spring rate of the combined spring system is (7 ± 2) N/mm and the
total friction resistance of the moving parts is less than 1 N.
The spring system shall be compressed to an initial l
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