DIN EN 12521-2016 Furniture - Strength durability and safety - Requirements for domestic tables German version EN 12521 2015《家具 强度、耐用性和安全性 家用桌子的要求 德文版本EN 12521-2015》.pdf

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1、March 2016 English price group 8No 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 97.140!%Le“2416627www.din.deDIN EN

2、12521Furniture Strength, durability and safety Requirements for domestic tables;English version EN 12521:2015,English translation of DIN EN 12521:2016-03Mbel Festigkeit, Dauerhaltbarkeit und Sicherheit Anforderungen an Tische im Wohnbereich;Englische Fassung EN 12521:2015,Englische bersetzung von DI

3、N EN 12521:2016-03Mobilier Rsistance, durabilit et scurit Exigences relatives aux tables usage domestique;Version anglaise EN 12521:2015,Traduction anglaise de DIN EN 12521:2016-03SupersedesDIN EN 12521:2010-05www.beuth.deDocument comprises 11 pagesDTranslation by DIN-Sprachendienst.In case of doubt

4、, the German-language original shall be considered authoritative.02.16 DIN EN 12521:2016-03 2 A comma is used as the decimal marker. National foreword This document (EN 12521:2015) has been prepared by Technical Committee CEN/TC 207 “Furniture” (Secretariat: UNI, Italy). The responsible German body

5、involved in its preparation was DIN-Normenausschuss Holzwirtschaft und Mbel (DIN Standards Committee Timber and Furniture), Working Committee NA 042-05-15 AA Sitzmbel, Polstermbel und Tische. Amendments This standard differs from DIN EN 12521:2010-05 as follows: a) references to EN 1730:2012, Furnit

6、ure Tables Test methods for the determination of stability, strength and durability have been updated; b) references to EN 12150-1:2000 have been replaced by references to EN 12150-1:2015. Previous editions DIN 68885: 1981-08, 1987-01 DIN V ENV 12521: 2000-08 DIN EN 12521: 2009-10, 2010-05 EUROPEAN

7、STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12521 December 2015 ICS 97.140 Supersedes EN 12521:2009English Version Furniture - Strength, durability and safety - Requirements for domestic tables Mobilier - Rsistance, durabilit et scurit - Exigences relatives aux tables usage domestique Mbel - Festigk

8、eit, Dauerhaltbarkeit und Sicherheit - Anforderungen an Tische im Wohnbereich This European Standard was approved by CEN on 8 November 2015. 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 nati

9、onal 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, German). A ver

10、sion 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,

11、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 andUnited Kingdom.

12、 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. EN 12521:2015

13、EEN 12521:2015 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 4 4 Test conditions and test sequence 4 5 Safety requirements . 5 5.1 General 5 5.2 Shear and squeeze points . 5 5.2.1 Shear and squeeze points when setting up and folding 5 5.2.2 Sh

14、ear and squeeze points under influence of powered mechanisms 5 5.2.3 Shear and squeeze points during use 5 5.3 Stability . 5 5.3.1 Stability under vertical load 5 5.3.2 Stability for tables with extension elements . 6 6 Stability, strength and durability 6 6.1 General 6 6.2 Strength and durability r

15、equirements 7 7 Information for use 8 8 Test report . 8 Annex A (informative) Table top deflection test . 9 A.1 General 9 A.2 Testing . 9 A.3 Recommendation 9 DIN EN 12521:2016-03 EN 12521:2015 (E) 3 European foreword This document (EN 12521:2015) has been prepared by Technical Committee CEN/TC 207

16、“Furniture”, the secretariat of which is held by UNI. 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 June 2016 and conflicting national standards shall be withdrawn at the latest by June 2016. At

17、tention is drawn to the possibility that some 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 supersedes EN 12521:2009. In comparison with EN 12521:2009, the following

18、modifications have been made: a) references to EN 1730:2012, Furniture Tables Test methods for the determination of stability, strength and durability were updated; b) references to EN 12150-1:2000 were updated to EN 12150-1:2015. According to the CEN-CENELEC Internal Regulations, the national stand

19、ards organizations 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, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Lu

20、xembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 12521:2016-03 EN 12521:2015 (E) 4 1 Scope This European Standard specifies the minimum requirements for the safety, strength and durability of all ty

21、pes of domestic tables for use by adults, including those with glass in their construction. It does not apply to office tables and office desks, tables for non-domestic use, tables for educational institutions and outdoor tables for which European Standards exist. It does not apply to tables where t

22、he table top is not fixed to the understructure, i.e. when applying test 3, Table 2, the top becomes detached from the understructure. With the exception of stability tests, the standard does not provide assessment of the suitability of any storage features included in domestic tables. It does not i

23、nclude requirements for the durability of castors and height adjustment mechanisms. It does not include requirements for electrical safety. It does not include requirements for the resistance to ageing and degradation. Annex A (informative) contains a table top deflection test. 2 Normative reference

24、s 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) applies. EN 17

25、30:2012, Furniture - Tables - Test methods for the determination of stability, strength and durability EN 12150-1:2015, Glass in building - Thermally toughened soda lime silicate safety glass - Part 1: Definition and description EN 12600:2002, Glass in building - Pendulum test - Impact test method a

26、nd classification for flat glass EN 14072:2003, Glass in furniture - Test methods 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 accessible part part to which access can easily be gained by the user when the table is in its intended configur

27、ation of use and for which the probability of unintentional user contact is high 3.2 part accessible during setting up and folding part to which access can only be gained when setting up and folding the table 3.3 shear and squeeze point shear and squeeze point exists if the distance between two acce

28、ssible parts moving relative to each other is less than 18 mm or more than 7 mm in any position during movement 4 Test conditions and test sequence The tests shall be carried out in the order in which they are listed in Table 2 of this standard. DIN EN 12521:2016-03 EN 12521:2015 (E) 5 The tests con

29、ditions shall be as contained in EN 1730:2012, 4.1. The test forces may be replaced by masses. The relationship 10 N = 1 kg shall be used. 5 Safety requirements 5.1 General The table shall be so designed as to minimize the risk of injury to the user. All parts of the table with which the user comes

30、into contact during intended use shall be so designed that physical injury and damage are avoided. These requirements are met when: a) the edges of table tops which are directly in contact with the user are rounded or chamfered. All other edges accessible during use shall be free from burrs and/or s

31、harp edges; b) the ends of hollow components are closed or capped. Movable and adjustable parts shall be designed so that injuries and inadvertent operation are avoided. It shall not be possible for any load bearing part of the table to come loose unintentionally. All parts that are lubricated to as

32、sist sliding shall be designed to protect users from lubricant stains when in normal use. 5.2 Shear and squeeze points 5.2.1 Shear and squeeze points when setting up and folding Unless 5.2.2 or 5.2.3 are applicable, shear and squeeze points, as defined in 3.3, that are created only during setting up

33、 and folding, including the installation of extensions to the main table surface are acceptable, because the user can be assumed to be in control of his/her movements and to be able to cease applying the force immediately upon experiencing pain. The edges of parts moving relative to each other and c

34、reating shear and squeeze points shall be as specified in 5.1. 5.2.2 Shear and squeeze points under influence of powered mechanisms There shall be no shear and squeeze points created by parts of the table operated by powered mechanisms, i.e. springs, gas lifts and motorized systems. 5.2.3 Shear and

35、squeeze points during use There shall be no shear and squeeze points created by forces applied during normal use, see Table 2. There shall be no shear and squeeze points if a hazard is created by the user during normal movements and actions, e.g. attempting to move the table. 5.3 Stability 5.3.1 Sta

36、bility under vertical load 5.3.1.1 General Tables that can be set to heights both above and below 950 mm shall be tested to both 5.3.1.2 and 5.3.1.3. DIN EN 12521:2016-03 EN 12521:2015 (E) 6 5.3.1.2 Test for tables that are or can be set to a height of 950 mm or less The table shall be set to the he

37、ight most likely to overturn the table, but not more than 950 mm. The table shall not overturn when tested according to EN 1730:2012, 7.2.2, using the forces specified within Table 2. 5.3.1.3 Test for tables that are or can be set to a height greater than 950 mm The table shall be set to the height

38、most likely to cause overturning, but not less than 950 mm. The table shall not overturn when tested according to EN 1730:2012, 7.2.3, using 50 % of the forces specified within Table 2. 5.3.2 Stability for tables with extension elements Load each extension element with the load specified in Table 1.

39、 For tables with extension elements not fitted with interlocks open all extension elements in the least favourable combination. For tables with extension elements fitted with interlocks open the two extension elements with the largest loads without overriding the interlock. If an interlock device pr

40、events any two of the extension elements from being opened simultaneously, open the extension element with the largest load. The table shall not overturn when the vertical force specified in Table 2 is applied at the centre of the front of the table, through a loading pad (EN 1730:2012, 5.4), 50 mm

41、from the edge. Table 1 Loading of extension elements Component Load Extension elements designed for suspended filing only Other extension elements 1,25 kg/dm 0,2 kg/dm36 Stability, strength and durability 6.1 General Tables shall be tested for stability, strength and durability according to Table 2,

42、 following the order listed in Table 2. DIN EN 12521:2016-03 EN 12521:2015 (E) 7 Table 2 Stability, strength and durability tests Test Reference Loading Tables 600 mm in height, or Tables with tops with a surface area 0,25 m2All other tables 1. Horizontal static load test EN 1730:2012, 6.2 Test forc

43、e F14, N Minimum horizontal force, N Specified mass, kg Cycles 200 100 50 10 400 200 50 10 2. Vertical static load testsaEN 1730:2012, 6.3 Test force, N a) main surface for tables with a height less than or equal to 600 mm b) main surface for tables with a height greater than 600 mm c) ancillary sur

44、face Cycles 1 000 250 - 10 - 1 000 200 10 3. Horizontal durability test EN 1730:2012, 6.4.1 and 6.4.2 Test force Fad, N Specified mass, kg Cycles 150 50 5 000 300 50 10 000 4. Vertical durability test for cantilever or pedestal tables EN 1730:2012, 6.5 Test force, N Cycles 300 - 300 10 000 5. Vertic

45、al impact test for tables without glass in their construction EN 1730:2012, 6.6.1 and 6.6.3 Drop height, mm Cycles 140 10 180 10 6. Vertical impact test for tables with glass in their construction EN 1730:2012, 6.6.1 and 6.6.2 EN 14072:2003, Clause 6cDrop height, mm: Safety glassbOther glass Cycles

46、140 180 10 180 240 10 7. Stability under vertical loada,dEN 1730:2012, 7.1 and 7.2 Test force, N: Main surface V1 V2 Ancillary surface V1 V2 200 400 - - 200 400 100 200 8. Stability for tables with extension elementsd5.3.2 Test force, N - 200 aTables with extension pieces shall be tested both in the

47、 extended and unextended configurations. A table extension added in the centre of the table shall be tested as the main surface. A part of the main surface in the unextended configuration can become an ancillary surface in the extended configuration. bGlass is considered to be safety glass if the gl

48、ass fulfils the requirements in EN 12150-1:2015, Clause 8, fragmentation test, or where the mode of breakage () according to EN 12600:2002, is Type B or Type C. cImpact the table top in accordance with the positions defined within EN 1730:2012, 6.6.3. dFor tables that might not fulfil the stability

49、requirements before carrying out any tests, the applicable stability tests shall be carried out before starting the sequence of tests specified in this table. 6.2 Strength and durability requirements The strength and durability requirements are fulfilled when after testing in accordance with Table 2: a) there are no fractures of any member, joint or component, DIN EN 12521:2016-03 EN 12521:2015 (E) 8 b) there is no loosening of joints intended to be rigid, c) the