1、BSI Standards PublicationBS EN 12521:2015Furniture Strength,durability and safety Requirements for domestictablesBS EN 12521:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 12521:2015.It supersedes BS EN 12521:2009 which is withdrawn.The UK participation in
2、 its preparation was entrusted to TechnicalCommittee FW/0/2, Domestic and Contract Furniture.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible
3、for its correctapplication. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 89659 0ICS 97.140Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and
4、 Strategy Committee on 31 January 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 12521:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12521 December 2015 ICS 97.140 Supersedes EN 12521:2009English Version Furniture - Strength, durability and safety - R
5、equirements for domestic tables Mobilier - Rsistance, durabilit et scurit - Exigences relatives aux tables usage domestique Mbel - Festigkeit, Dauerhaltbarkeit und Sicherheit - Anforderungen an Tische im Wohnbereich This European Standard was approved by CEN on 8 November 2015. CEN members are bound
6、 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. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN
7、-CENELEC Management Centre or to any CEN member. This European Standard exists 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 ha
8、s 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Lu
9、xembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brus
10、sels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12521:2015 EBS EN 12521:2015EN 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
11、 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 Shear 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
12、 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 requirements 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 Reco
13、mmendation 9 BS EN 12521:2015EN 12521:2015 (E) 3 European foreword This document (EN 12521:2015) 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 standard, either by publication of
14、 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. Attention 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 hel
15、d responsible for identifying any or all such patent rights. This document supersedes EN 12521:2009. In comparison with EN 12521:2009, the following modifications have been made: a) references to EN 1730:2012, Furniture Tables Test methods for the determination of stability, strength and durability
16、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 standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republi
17、c, 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 the United Kingdom. BS EN 1
18、2521:2015EN 12521:2015 (E) 4 1 Scope This European Standard specifies the minimum requirements for the safety, strength and durability of all types 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
19、non-domestic use, tables for educational institutions and outdoor tables for which European Standards exist. It does not apply to tables where the 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
20、 stability tests, the standard does not provide assessment of the suitability of any storage features included in domestic tables. It does not include requirements for the durability of castors and height adjustment mechanisms. It does not include requirements for electrical safety. It does not incl
21、ude requirements for the resistance to ageing and degradation. Annex A (informative) contains a table top deflection test. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references,
22、 only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1730:2012, Furniture - Tables - Test methods for the determination of stability, strength and durability EN 12150-1:2015, Glass in building - Thermally toughe
23、ned soda lime silicate safety glass - Part 1: Definition and description EN 12600:2002, Glass in building - Pendulum test - Impact test method and classification for flat glass EN 14072:2003, Glass in furniture - Test methods 3 Terms and definitions For the purposes of this document, the following t
24、erms 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 configuration 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
25、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 accessible 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 test
26、s shall be carried out in the order in which they are listed in Table 2 of this standard. BS EN 12521:2015EN 12521:2015 (E) 5 The tests conditions 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
27、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 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 wh
28、ich are directly in contact with the user are rounded or chamfered. All other edges accessible during use shall be free from burrs and/or sharp 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
29、avoided. It shall not be possible for any load bearing part of the table to come loose unintentionally. All parts that are lubricated to assist 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 settin
30、g 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 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 move
31、ments and to be able to cease applying the force immediately upon experiencing pain. The edges of parts moving relative to each other and creating 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 s
32、queeze points created by parts of the table operated by powered mechanisms, i.e. springs, gas lifts and motorized systems. 5.2.3 Shear and 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 squeez
33、e 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 Stability 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. BS EN 12521
34、:2015EN 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 height 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 specifie
35、d 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 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 specif
36、ied within Table 2. 5.3.2 Stability for tables with extension elements Load each extension element with the load specified in Table 1. For tables with extension elements not fitted with interlocks open all extension elements in the least favourable combination. For tables with extension elements fit
37、ted with interlocks open the two extension elements with the largest loads without overriding the interlock. If an interlock device prevents 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 ver
38、tical 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 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/d
39、m36 Stability, strength and durability 6.1 General Tables shall be tested for stability, strength and durability according to Table 2, following the order listed in Table 2. BS EN 12521:2015EN 12521:2015 (E) 7 Table 2 Stability, strength and durability tests Test Reference Loading Tables 600 mm in h
40、eight, or Tables with tops with a surface area 0,25 m2All other tables 1. Horizontal static load test EN 1730:2012, 6.2 Test force 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 fo
41、r 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 surface 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 00
42、0 4. Vertical durability test for cantilever or pedestal tables EN 1730:2012, 6.5 Test force, N Cycles 300 - 300 10 000 5. Vertical 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 gl
43、ass in their construction EN 1730:2012, 6.6.1 and 6.6.2 EN 14072:2003, Clause 6cDrop height, mm: Safety glassbOther glass Cycles 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.
44、 Stability for tables with extension elementsd5.3.2 Test force, N - 200 aTables with extension pieces shall be tested both in the 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 unextend
45、ed configuration can become an ancillary surface in the extended configuration. bGlass is considered to be safety glass if the glass 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 th
46、e table top in accordance with the positions defined within EN 1730:2012, 6.6.3. dFor tables that might not fulfil the stability 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
47、 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, BS EN 12521:2015EN 12521:2015 (E) 8 b) there is no loosening of joints intended to be rigid, c) the table fu
48、lfils its functions after removal of the test loads, d) the table fulfils the stability requirements. 7 Information for use Information for use shall be available in the language of the country in which it will be delivered to the end user. It shall contain at least the following details: a) assembl
49、y instructions, where applicable, b) instructions for the care and maintenance of the table. 8 Test report The test report shall include at least the following information: a) a reference to this European Standard; b) details of the piece of furniture tested; c) details of defects observed before testing; d) any variation from the specified temperature range; e) the test results; f) the name and address of the test facility; g) the date of test. BS EN 12521:2015EN 12521:2015 (E) 9 Annex A (informative) Table top deflection test A.1 General If test of the tab
