1、June 2010 Translation by DIN-Sprachendienst.English price group 13No 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 9
2、7.140!$iN“1700443www.din.deDDIN EN 15338Hardware for furniture Strength and durability of extension elements and their components(includes Amendment A1:2010)English translation of DIN EN 15338:2010-06Mbelbeschlge Festigkeit und Dauerhaltbarkeit von Auszgen und deren Komponenten (enthlt nderungA1:201
3、0)Englische bersetzung von DIN EN 15338:2010-06Quincaillerie dameublement Rsistance mcanique et endurance des lments extractibles et de leurs composants(Amendement A1:2010 inclus)Traduction anglaise de DIN EN 15338:2010-06SupersedesDIN EN 15338:2007-05www.beuth.deDocument comprises pagesIn case of d
4、oubt, the German-language original shall be considered authoritative.2606.10 DIN EN 15338:2010-06 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 207 “Furniture”, (Secretariat:UNI, Italy). The responsible German body involved in
5、its preparation was the Normenausschuss Holzwirtschaft und Mbel (Timber and Furniture Standards Committee), Working Committee NA 042-05-06 AA Mbelschlsser, Beschlge und Bauteile Spiegelausschuss zum CEN/TC 207/WG 8. Attention is drawn to the possibility that some of the elements of this document may
6、 be the subject of patent rights. DIN shall not be held responsible for identifying any or all such patent rights. The start and finish of text introduced or altered by Amendment A1:2010 is indicated in the text by !“. Amendments This standard differs from DIN EN 15338:2007-05 as follows: a) Subclau
7、se A.1 has been revised and brought in line with the specifications for product information given in other standards of CEN/TC 207/WG 8. b) In subclause A.2 “Field of application”, solid wood and particle board are now mentioned as materials for which the extension elements are suitable, and a note
8、that the product information shall include information regarding the test results has been added. c) In subclause A.7, “test results” has been changed to “the test results”. Previous editions DIN 68858: 1982-05, 2004-06 DIN 68889: 1988-03 DIN EN 15338: 2007-05 2 EUROPEAN STANDARD NORME EUROPENNE EUR
9、OPISCHE NORM EN 15338:2007+A1 February 2010 ICS 97.140 Supersedes EN 15338:2007English Version Hardware for furniture - Strength and durability of extension elements and their components Quincaillerie dameublement - Rsistance mcanique et endurance des lments extractibles et de leurs composants Mbelb
10、eschlge - Festigkeit und Dauerhaltbarkeit von Auszgen und deren Komponenten This European Standard was approved by CEN on 23 December 2006 and includes Amendment 1 approved by CEN on 4 January 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditi
11、ons 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 Management Centre or to any CEN member. This European Standard exists in three
12、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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Aus
13、tria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUR
14、OPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15338:2007+A1:2010: EEN 153
15、38:2007+A1:2010 (E) 2 Contents Page Foreword 4Introduction . 51 Scope 62 Normative references 63 Terms and definitions . 64 General test conditions . 74.1 Preliminary preparation 74.2 Test equipment 74.3 Application of forces . 74.4 Tolerances 84.5 Sequence of testing . 84.6 Inspection and assessmen
16、t of results 85 Test apparatus . 85.1 Loading pad 85.2 Apparatus for slam-shut/open tests 85.3 Masses 95.4 Glass marbles 95.5 Loads for filing pockets 95.6 Test frame and test drawer . 95.7 Particle board properties 115.8 Wood component. 116 Test procedures and requirements 116.1 General 116.2 Overl
17、oad tests 116.2.1 General 116.2.2 Vertical downwards static overload. 116.2.3 Horizontal sideways static overload 126.2.4 Outwards static overload 136.2.5 Slam-shut/open 136.3 Functional tests . 136.3.1 General 136.3.2 Deflection of extension element bottoms . 136.3.3 Deformation of front and back .
18、 146.3.4 Operating forces 156.3.5 1stvertical downwards static load test 156.3.6 1sthorizontal sideways static load . 156.3.7 Determination of reference point for the deflection of front . 166.3.8 Durability 166.3.9 Deflection of front 176.3.10 2ndvertical downwards static load . 176.3.11 2ndhorizon
19、tal sideways static load 176.3.12 Operating forces 186.3.13 Slam-shut/open 186.4 Corrosion resistance . 186.5 Test report 18Annex A (normative) Product information system . 19Annex B (normative) Apparatus for slam-shut/open of extension elements 20DIN EN 15338:2010-06 EN 15338:2007+A1:2010 (E) 3 Ann
20、ex C (normative) Test parameters 24DIN EN 15338:2010-06 EN 15338:2007+A1:2010 (E) 4 Foreword This document (EN 15338:2007+A1:2010) has been prepared by Technical Committee CEN/TC 207 “Furniture”, the secretariat of which is held by UNI. This European Standard shall be given the status of a national
21、standard, either by publication of an identical text or by endorsement, at the latest by August 2010, and conflicting national standards shall be withdrawn at the latest by August 2010. This document includes Amendment 1, approved by CEN on 2010-01-04. This document supersedes EN 15338:2007. The sta
22、rt and finish of text introduced or altered by amendment is indicated in the text by tags !“. 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,
23、 Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. DIN EN 15338:2010-06 EN 15338:2007+A1:2010 (
24、E) 5 Introduction The aim of this European Standard is to provide furniture manufacturers, designers and developers with comparable information regarding the performance of extension elements and drawers. DIN EN 15338:2010-06 EN 15338:2007+A1:2010 (E) 6 1 Scope This European Standard specifies test
25、methods and requirements for the strength and durability of all types of extension elements and their components for all fields of application, except table extensions. The tests consist of the application of loads, forces and velocities simulating normal functional use, as well as misuse, that migh
26、t reasonably be expected to occur. With the exception of the corrosion test in 6.4, the tests are designed to evaluate properties without regard to materials, design/construction or manufacturing processes. The strength and durability tests only relate to the extension elements and the parts used fo
27、r the attachment, e.g. screws. The strength and durability tests are carried out in a test frame with specified properties. The test results can only be used as a guide to the performance of a piece of furniture. The test results are only valid for the extension element tested. These results may be
28、used to represent the performance of production models provided that the tested model is representative of the production model. Ageing and influences of heat and humidity are not included. 2 Normative references The following referenced documents are indispensable for the application of this docume
29、nt. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 320, Fibreboards Determination of resistance to axial withdrawal of screws EN 323, Wood-based panels Determination of density EN ISO
30、6270-2, Paints and varnishes Determination of resistance to humidity Part 2: Procedure for exposing test specimens in condensation-water atmospheres (ISO 6270-2:2005) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 catch device device, which
31、keeps or pulls an extension element in place, but does not require a second action in order to release it, e.g. a magnetic catch or a self-closing or self-opening mechanism 3.2 extension element components that can be pulled out and pushed in, e.g. drawers, suspended pocket files, keyboard trays 3.3
32、 loading capacity, M mass in Kg, as specified by the manufacturer, for which the extension element will fulfil the strength and durability requirements. DIN EN 15338:2010-06 EN 15338:2007+A1:2010 (E) 7 NOTE The loading capacity includes the extension element and the load in/on the extension element.
33、 In other EN standards, this is referred to as total mass. 3.4 damper mechanism which gently brings the extension element to a stop 4 General test conditions 4.1 Preliminary preparation The extension element shall be assembled/mounted according to the instructions supplied with it. If mounting or as
34、sembly instructions are not supplied, the most adverse configuration shall be used and the mounting or assembly method shall be recorded in the test report. Fittings shall be tightened before testing and shall not be re-tightened unless specifically required in the manufacturers instructions. If the
35、 configuration must be changed to produce the worst-case conditions, this shall be recorded in the test report. For testing a range of related extension elements, only worst case(s) need to be tested. The tests shall be carried out in indoor ambient conditions at a temperature between 15 C and 25 C.
36、 If during a test the temperature is outside of the range of 15 Cto 25 C, the maximum and/or minimum temperature shall be recorded in the test report. Extension elements which include structural hardware parts made of hygroscopic plastic materials, e.g. polyamide shall be conditioned at (23 5) C and
37、 a relative humidity of (50 5) % for at least 7 days before testing. In the case of designs not addressed in the test procedures, the test shall be carried out as far as possible as described, and deviations from the test procedure recorded in the test report. Before beginning the testing, visually
38、inspect the extension element thoroughly. Record any defects so that they are not assumed to have been caused by the tests. Carry out measurements when specified. 4.2 Test equipment Unless otherwise specified, the tests may be applied by any suitable device, because results are not dependent upon th
39、e apparatus. The equipment shall not inhibit deformation of the extension element, i. e. it shall be able to move so that it can follow the deformation of the extension element during testing. All loading pads shall be capable of pivoting in relation to the direction of the applied force. The pivot
40、point shall be as close as practically possible to the load surface. 4.3 Application of forces The forces in the static load tests shall be applied sufficiently slowly to ensure that negligible dynamic force is applied. Unless otherwise specified, each force shall be maintained for not less than 10
41、and not more than 15 s. The forces in durability tests shall be applied at a rate to ensure that excessive heating does not occur. The forces may be replaced by masses. The relation 10 N = 1 kg may be used for this purpose. DIN EN 15338:2010-06 EN 15338:2007+A1:2010 (E) 8 4.4 Tolerances Unless other
42、wise stated, the following tolerances are applicable: Forces: 5 % of the nominal force; Velocities: 5 % of the nominal velocity; Masses: 1 % of the nominal mass; Dimensions: 1 mm of the nominal dimension; Angles: 2 of the nominal angle; The accuracy for the positioning of loading pads shall be 5 mm.
43、 4.5 Sequence of testing The tests shall be carried out in the same sequence as the clauses are numbered in this standard. If the clause sequence is not followed, the sequence shall be recorded in the test report. 4.6 Inspection and assessment of results Before and after completion of each test, car
44、ry out the inspection as specified, after using adjustment devices, if available. Before any measurements are taken, the loaded extension shall be moved 10 times over the total extension length. Record any changes that have taken place since the initial inspection. The inspection shall include at le
45、ast the following: a) the fracture of any component or joint; b) the loosening of any joint intended to be rigid, which can be demonstrated by hand pressure; c) the deformation or wear of any part or component such that its functioning is impaired; d) the loosening of any means of fixing components;
46、 e) any impaired function of a component or part. 5 Test apparatus 5.1 Loading pad Rigid disc 100 mm in diameter (or 50 mm to be used in limited space), with a flat face and a 12 mm front edge blend radius. 5.2 Apparatus for slam-shut/open tests Two examples for suitable apparatus as well as calibra
47、tion instructions are given in Annex B. DIN EN 15338:2010-06 EN 15338:2007+A1:2010 (E) 9 5.3 Masses Masses shall be designed so that they do not reinforce the structure or re-distribute the stresses. 5.4 Glass marbles Marbles made of solid glass with 10 mm to 15 mm diameter. They shall be in a flexi
48、ble bag large enough to allow them to move in the bag during the test. In cases where the volume of the glass marbles is greater than the volume of the extension element, steel marbles shall be used. This shall be noted in the test report. 5.5 Loads for filing pockets Suspended filing pockets shall
49、be loaded with typing paper or an equivalent alternative as shown in Figure 1. In cases where it is not possible to achieve the loading capacity with paper, the additional mass shall be steel and shall be positioned as the spacing material. This shall be noted in the test report. Key 1 Typing paper 2 Spacing material (for example polystyrene) in
