1、August 2015 Translation by DIN-Sprachendienst.English price group 12No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS
2、 97.140!%E2“2341597www.din.deDDIN EN 747-2Furniture Bunk beds and high beds Part 2: Test methods;English version EN 747-2:2012+A1:2015,English translation of DIN EN 747-2:2015-08Mbel Etagenbetten und Hochbetten Teil 2: Prfverfahren;Englische Fassung EN 747-2:2012+A1:2015,Englische bersetzung von DIN
3、 EN 747-2:2015-08Meubles Lits superposs et lits surlevs Partie 2: Mthodes dessai;Version anglaise EN 747-2:2012+A1:2015,Traduction anglaise de DIN EN 747-2:2015-08SupersedesDIN EN 747-2:2012-06www.beuth.deDocument comprises 21 pagesIn case of doubt, the German-language original shall be considered a
4、uthoritative.07.15 DIN EN 747-2:2015-08 2 A comma is used as the decimal marker. Start of application The start of application of this standard is 2015-08-01. National foreword This document (EN 747-2:2012+A1:2015) has been prepared by Technical Committee CEN/TC 207 “Furniture”, (Secretariat: UNI, I
5、taly). The responsible German body involved in its preparation was the DIN-Normenausschuss Holzwirtschaft und Mbel (DIN Standards Committee Timber and Furniture), Working Committee NA 042-05-13 AA Anforderungen an Kindermbel, SpA CEN/TC 207/WG 2, CEN/PC 364. This standard includes safety requirement
6、s within the meaning of the Produktsicherheitsgesetz (ProdSG) (German Product Safety Act). Where this standard has been identified by the Ausschuss fr Produktsicherheit (German Committee for Product Safety) and reference to it has been published in the Gemeinsames Ministerialblatt (German Joint Mini
7、sterial Gazette) by the Bundesanstalt fr Arbeitsschutz und Arbeitsmedizin (BAuA) (German Federal Institute for Occupational Safety and Health), it is to be presumed that bunk beds and high beds which comply with this standard fulfil the relevant health and safety requirements. Amendments This standa
8、rd differs from DIN EN 747-2:2012-06 as follows: a) Subclause 4.10 “Template for V-shaped openings” has been added; b) Subclause 5.3 “Measurements” has been extended; c) the standard has been editorially revised. Previous editions DIN 68879: 1978-05, 1981-08 DIN EN 747-2: 1993-06, 2007-07, 2012-06 D
9、IN EN 13453-2: 2004-09 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 747-2:2012+A1 May 2015 ICS 97.140 Supersedes EN 747-2:2012English Version Furniture - Bunk beds and high beds - Part 2: Test methods Meubles - Lits superposs et lits surlevs - Partie 2: Mthodes dessai Mbel - Etagenbetten und
10、 Hochbetten - Teil 2: Prfverfahren This European Standard was approved by CEN on 8 March 2012 and includes Amendment 1 approved by CEN on 16 April 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the stat
11、us 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, Ge
12、rman). 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, Croat
13、ia, 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and Un
14、ited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. E
15、N 747-2:2012+A1:2015 EEN 747-2:2012+A1:2015 (E) 2 Contents Page Foreword 3 Introduction .4 1 Scope 5 2 Normative references 5 3 General test conditions .5 3.1 Preliminary preparation 5 3.2 Application of forces .6 3.3 Tolerances 6 4 Test equipment 6 4.1 General 6 4.2 Measuring cones6 4.3 Bed base im
16、pactor .7 4.3.1 Bed base impactor (see Figure 2) 7 4.3.2 Springs 7 4.3.3 Striking surface 8 4.4 Loading pads 8 4.5 Test mattress 8 4.6 Test mass .9 4.7 Stops .9 4.8 Floor surface 9 4.9 Tread impactor .9 4.10 Template for V-shaped openings 10 5 Test procedures 10 5.1 Inspection before testing . 10 5.
17、2 Inspection of product . 10 5.3 Measurements . 10 5.3.1 Holes, gaps and openings . 10 5.3.2 V and irregular shaped holes, gaps and openings . 11 5.4 Strength tests 13 5.4.1 Positioning of the bed 13 5.4.2 Static load on safety barriers 13 5.4.3 Upwards and downwards static load on bed base . 14 5.4
18、.4 Impact test on bed base . 14 5.4.5 Durability test on bed base 15 5.5 Durability test of frame and fastenings 15 5.6 Ladders or other means of access . 16 5.6.1 Vertical static load on treads . 16 5.6.2 Horizontal static loads on treads 16 5.6.3 Durability of treads . 17 5.6.4 Tread impact test 1
19、7 5.7 Stability test . 18 5.8 Fastening of the upper bed to the lower bed . 18 6 Test report . 18 DIN EN 747-2:2015-08 EN 747-2:2012+A1:2015 (E) 3 Foreword This document (EN 747-2:2012+A1:2015) has been prepared by Technical Committee CEN/TC 207 “Furniture”, the secretariat of which is held by UNI.
20、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 November 2015, and conflicting national standards shall be withdrawn at the latest by November 2015. Attention is drawn to the possibility that some
21、 of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document includes Amendment 1, approved by CEN on 2015-04-16. The start and finish of text introduced or altered by amendment is
22、 indicated in the text by tags ! “. This document supersedes !EN 747-2:2012“. !deleted text“ 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.
23、 According to the CEN-CENELEC Internal Regulations, the national standards organisations 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, Ge
24、rmany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 747-2:2015-08 EN 747-2:2012+A1:2015 (E) 4 Introduction This part of EN 747 desc
25、ribes a number of tests consisting of the application, to various parts of bunk beds and high beds, of loads or forces applied by 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 propertie
26、s without regard for materials, design/construction or manufacturing processes. DIN EN 747-2:2015-08 EN 747-2:2012+A1:2015 (E) 5 1 Scope This European Standard specifies test methods for the safety, strength and durability of bunk beds and high beds for domestic and non-domestic use. The loads and f
27、orces in the strength and durability tests apply to beds with an internal length greater than 140 cm and a maximum bed base width of 120 cm. 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 EN 747-1. 2 Normative
28、references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) appli
29、es. !EN 747-1:2012+A1:2015“, 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 General test conditions 3.1 Preliminary preparation For fu
30、rniture 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 hours in normal indoor conditions shall have elapsed prior to testing. The sample shall be tested as del
31、ivered. If the sample is a knock-down type, it shall be assembled according to the instructions supplied with it. If the instructions allow for different combinations, the most adverse combination shall be used for each test. Samples intended to be fastened together in pairs or attached to the struc
32、ture of a building shall be tested as single, free-standing samples unless the instructions specifically require attachment to another sample or the building structure. The test shall be carried out in indoor ambient conditions at a temperature between 15 C and 25 C. If, during a test, the temperatu
33、re falls outside of the range of 15 C to 25 C, the maximum and/or minimum temperature shall be recorded in the test report. Knock-down fittings shall be tightened before testing and shall not be re-tightened throughout the testing procedures. The tests shall be carried out on the same sample and fol
34、lowing the order of the clauses of EN 747-1. 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 shall be carried out as closely as possible to the specified procedure. DIN
35、EN 747-2:2015-08 EN 747-2:2012+A1:2015 (E) 6 3.2 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 kineti
36、c 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. 3.3 Tolerances Unless otherwise stated, the following tolerances are applicable to the test equipment: all forces shall have
37、 an accuracy of 5 % of the nominal force; all masses shall have an accuracy of 1 % of the nominal mass; all dimensions shall have an accuracy of 1 mm of the nominal dimension; all angles shall have an accuracy of 2 of the nominal angle. The tolerance for the positioning of loading pads shall be 5 mm
38、. The forces may be replaced by masses. The relationship of 10 N = 1 kg shall be used. NOTE For the purposes of uncertain measurements, test results are not considered to be adversely affected when the above tolerances are met. 4 Test equipment 4.1 General The test forces may, unless otherwise state
39、d, 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 dire
40、ctions. 4.2 Measuring cones Cones with an angle of (30 1) made of plastic or some other hard, smooth material (see Figure 1). There shall be six cones with the diameters 5 mm, 7 mm, 12 mm, 25 mm, 60 mm and 75 mm. The 5 mm, 7 mm, 25 mm and 75 mm cone diameters shall have tolerances of (0/-0,1) mm. Th
41、e 12 mm and 60 mm cone diameters shall have tolerances of (0/+0,1) mm. DIN EN 747-2:2015-08 EN 747-2:2012+A1:2015 (E) 7 Figure 1 Examples of measuring cones 4.3 Bed base impactor 4.3.1 Bed base impactor (see Figure 2) Approximately 200 mm in diameter, separated from the striking surface by helical c
42、ompression springs and free to move relative to it on a line perpendicular to the plane of the central area of the striking surface (see Figure 2). 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,
43、shall have a mass of (25 0,1) kg. 4.3.2 Springs Springs shall be such that the combined spring system has a nominal spring rate of (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 load of (1 040 5) N (measured stat
44、ically), and the amount of spring compression movement available from the initial compression point to the point where the springs become fully closed shall not be less than 60 mm. Key 1 Connecting part of the lifting device which shall not restrain the free fall 2 Striking surface Figure 2 Bed base
45、 impactor DIN EN 747-2:2015-08 EN 747-2:2012+A1:2015 (E) 8 4.3.3 Striking surface Rigid and circular object, 200 mm in diameter, the face of which has a convex spherical curvature of a 300 mm radius with a 12 mm front edge radius (see Figure 3). 4.4 Loading pads 4.4.1 Rigid and circular object, 200
46、mm in diameter, the face of which has a convex spherical curvature of a 300 mm radius with a 12 mm front edge radius (see Figure 3). Dimensions in millimetres Figure 3 Loading pad 4.4.2 Rigid and cylindrical object, 100 mm in diameter, having a flat, smooth, hard surface and rounded edge with a radi
47、us of 12 mm. 4.5 Test mattress Soft polyether foam sheet with a thickness of 100 mm, a bulk density of (30 2) kg/m3, an indentation hardness index of (170 20) N in accordance with A 40 of EN ISO 2439:2008, and with dimensions more or less the same as those of the bed base tested. The test mattress m
48、ay have a cover, in which case it shall have the following characteristics: composition: pure cotton; weave in plain: 1/1; mass per unit area: 100 g/m to 120 g/m; warp and weft: 20 threads/cm to 30 threads/cm; finishing: washed, no finishing agents; cover make up: tight fit, but with no restrictions on the foam. DIN EN 747-2:2015-08 EN 747-2:2012+A1:2015 (E) 9 The same part of the test mattress shall not be re-used within 30 min and the mattress shall be repl
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