BS EN 527-2-2016 Office furniture Work tables Safety strength and durability requirements《办公家具 工作台 第2部分 安全性、强度和耐久性要求》.pdf

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1、BS EN 527-2:2016Office furniture Work tablesPart 2: Safety, strength and durability r e q u i r e m e n t sBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 527-2:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 527-2:201

2、6.It supersedes BS EN 527-2:2002 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee FW/0/3, Office Furniture.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all

3、 the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 86579 4 ICS 97.140 Compliance with a British Standard cannot confer immunity from legal obligations.This British St

4、andard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 527-2:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 527-2 December 2016 ICS 97.140 Supersedes EN 527-

5、2:2002English Version Office furniture - Work tables - Part 2: Safety, strength and durability requirements Mobilier de bureau - Tables de travail de bureau - Partie 2 : Exigences de scurit, de rsistance et de durabilit Brombel - Bro-Arbeitstische - Teil 2: Anforderungen an die Sicherheit, Festigkei

6、t und Dauerhaltbarkeit This European Standard was approved by CEN on 16 October 2016. 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. Up-to-date lists

7、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 version in any other language made by translation under th

8、e 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, Former Yugos

9、lav 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. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN D

10、E NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 527-2:2016 EBS EN 527-2:2016EN 527-2:2016 (E) 2 Contents Page Euro

11、pean foreword . 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 4 4 Safety requirements . 4 4.1 General 4 4.2 Shear and squeeze points . 5 4.2.1 Shear and squeeze points when setting up and folding 5 4.2.2 Shear and squeeze points under influence of powered mechanisms 5 4.2.3 Shear an

12、d squeeze points during use 5 4.3 Stability requirements 5 4.4 Structural safety requirements 5 5 Strength and durability . 5 5.1 General 5 Table 1 Test sequence and parameters . 6 5.2 Requirements . 8 6 Information for use 8 7 Test report . 8 Annex A (informative) Test for the deflection of table t

13、ops . 9 Annex B (informative) Stiffness of the structure example 10 Figure B.1 Stiffness of the structure . 10 BS EN 527-2:2016EN 527-2:2016 (E) 3 European foreword This document (EN 527-2:2016) has been prepared by Technical Committee CEN/TC 207 “Furniture”, the secretariat of which is held by UNI.

14、 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 2017, and conflicting national standards shall be withdrawn at the latest by June 2017. Attention is drawn to the possibility that some of the

15、 elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 527-2:2002. Compared to the previous version, modifications are: Test sequence and parameters are included, according to tests

16、in EN 1730:2012 instead of EN 527-3:2003, which will be withdrawn; Suppression of A-deviation; Addition of an Annex B (informative) for an example of calculation for stiffness of the structure. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following c

17、ountries 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, Luxembourg, Malta, Netherlands, Norway,

18、 Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 527-2:2016EN 527-2:2016 (E) 4 1 Scope This European Standard specifies safety, strength and durability requirements for work tables and desks for office tasks to be undertaken in a seated

19、, a sit-stand or standing position. It does not apply to other tables in the office area, which are covered by EN 15372. Annex A (informative) contains a test for the deflection of tables tops. Annex B (informative) contains an example of calculation of the stiffness of the structure. 2 Normative re

20、ferences 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

21、. EN 1730:2012, Furniture - Tables - Test methods for the determination of stability, strength and durability 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

22、 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 only be gained when setting up and folding the table 3.3 shear and squeeze point gap which can cause harm to fingers

23、 and which occurs when two accessible parts move relative to each other 3.4 overturn event at which a table pivots to a point beyond which the table continues to fall 4 Safety requirements 4.1 General The table shall be designed so as to minimize the risk of injury to the user. All parts of the tabl

24、e with which the user comes into contact during intended use, shall be designed so that physical injury and damage are avoided. These requirements are fulfilled when: a) all accessible edges and corners are free from burrs and rounded or chamfered; b) the edges and corners of the top surfaces are ch

25、amfered not less than 1 mm by 1 mm or rounded with a radius of not less than 2 mm; BS EN 527-2:2016EN 527-2:2016 (E) 5 c) the ends of feet and tubular components are closed or capped. Movable and adjustable parts shall be designed so that injuries and inadvertent operation are avoided. It shall not

26、be possible for any load bearing part of the table to come loose unintentionally. All parts which are lubricated to assist sliding shall be designed to protect users from lubricant stains when in normal use. 4.2 Shear and squeeze points 4.2.1 Shear and squeeze points when setting up and folding Unle

27、ss 4.2.2 or 4.2.3 are applicable, shear and squeeze points that are created only during setting up and folding 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 movin

28、g relative to each other and creating shear and squeeze points shall be as specified in 4.1. 4.2.2 Shear and squeeze points under influence of powered mechanisms There shall be no shear and squeeze points which close to less than 25 mm unless they are always less than 7 mm created by parts of the ta

29、ble operated by powered mechanisms, i.e. springs, gas lifts and motorized systems. 4.2.3 Shear and squeeze points during use There shall be no shear and squeeze points which close to less than 25 mm unless they are always less than 7 mm created by forces applied during normal use or created by the u

30、ser during normal movements and actions, e.g. attempting to move the table. 4.3 Stability requirements The table shall not overturn when tested according to tests 10 and 11 of Table 1. 4.4 Structural safety requirements The structural safety requirements are fulfilled when the requirements according

31、 to 5.2 are fulfilled. 5 Strength and durability 5.1 General Tables shall be tested according to Table 1 and following the order listed in Table 1. With the exception of test 9 Drop test, work tables supplied with storage features shall be tested with the following loads in the storage feature: exte

32、nsion elements: 0,5 kg/dm3; suspended pocket files: 4 kg/dm. BS EN 527-2:2016EN 527-2:2016 (E) 6 Table 1 Test sequence and parameters Tests Reference Parameters Value Minimum mass on the table top, kg: 50c1. Durability of height adjustment mechanismsdEN 1730:2012, 8 Location of the centre of the loa

33、ding point and loading on the table top: - A: 20 kg at 200 mm from the front and side edges. The remaining load shall be at the geometric centre of the table top (25 % of the cycles); - B: 50 kg or the maximum load specified shall be at the geometric centre of the table top (50 % of the cycles); - C

34、: 20 kg positioned at a rear corner 200 mm from the rear edge and the side edge. The remaining load shall be at the geometric centre of the table top (25 % of the cycles) cycles: 5000 2.1. Horizontal static load test aEN 1730:2012, 6.2 Load on the table top, kg: Specified force, N: Minimum specified

35、 force, N: Cycles 50 450 300 10 2.2. Additional horizontal static load test for adjustable tables with a height more than 950 mm bEN 1730:2012, 6.2 Load on the table top, kg: Moment, Nm: Cycles 50 285 10 3.1 Vertical static load tests aEN 1730:2012, 6.3.1 Force, N Cycles 1 000 10 3.2 Additional vert

36、ical static load test for EN 1730:2012, 6.3.1 Force, N Cycles 500 10 BS EN 527-2:2016EN 527-2:2016 (E) 7 Tests Reference Parameters Value adjustable tables with a height more than 950 mm b4. Horizontal durability test aEN 1730:2012, 6.4.1, 6.4.2 Load on the table top, kg: Force, N: Cycles: 50 300 10

37、 000 5. Stiffness of the structure aEN 1730:2012, 6.4.1 and 6.4.3 Load on the table top, kg: Force, N: 0 200 6. Vertical durability test aEN 1730:2012, 6.5 Force, N: Cycles: 400 10 000 7. Durability of tables with castors EN 1730:2012, 6.8 Load on the table top, kg: Cycles: 50 2 000 8. Vertical impa

38、ct test aEN 1730:2012, 6.6 Drop height, mm : Cycles 140 10 9. Drop test aEN 1730:2012, 6.9 Nominal drop height, mm: 100 10. Stability under vertical load eEN 1730:2012, 7.2 Force, N V1V2 750 750 11. Stability for work tables extension elements eEN 1730:2012, 7.3 Force, N 400 aHeight adjustable table

39、s shall be adjusted to their maximum height or 950 mm table top height, whichever is the lower. bAdjust the work table to its maximum height cEither minimum 50 kg or nominal load according to the manufacturers instruction whichever is the greater dThis test is only applicable to electrically operate

40、d height adjustment mechanisms. eThe tests of the stability Clauses 10 and 11 may be carried out additionally at the very beginning as an option. BS EN 527-2:2016EN 527-2:2016 (E) 8 5.2 Requirements The strength and durability requirements are fulfilled when after testing in accordance with Table 1:

41、 a) there are no fractures of any member, joint or component; b) there are no loosening of joints intended to be rigid; c) the work table fulfils its functions after removal of the test loads; d) when tested according to Table 1, test number 5, the stiffness of the structure, both D1and D2divided by

42、 the height to the top of the table top shall be 17 mm/m. NOTE An example of calculation of D1and D2is given in Annex B (informative). 6 Information for use Information for use shall be available in the language of the country in which it will be available to the end user. It shall contain at least

43、the following details: a) information regarding intended use; b) instruction for operating the adjusting mechanisms; c) instruction for the care and maintenance of the table. 7 Test report The test report shall include at least the following information: a) reference to this European Standard (EN 52

44、7-2:2016); b) the piece of furniture tested; c) details of defects observed before testing; d) any variation from the specified temperature range; e) test results; f) name and address of the test facility; g) date of test. BS EN 527-2:2016EN 527-2:2016 (E) 9 Annex A (informative) Test for the deflec

45、tion of table tops A.1 It is recommended that the test specified in A.2 should be carried out if the deflection of the main surface of the table measured in the vertical static load test (EN 1730:2012, 6.3) exceeds 1/250 of the span for wood based panels, 1/150 of the span for timber products or 1/1

46、00 of the span for other materials. A.2 Test the deflection of table tops according to EN 1730:2012, 6.7, with an evenly distributed load 1,5 kg/dm2. Measure according to EN 1730:2012, 6.7, and record the deflection at the same points as specified above. BS EN 527-2:2016EN 527-2:2016 (E) 10 Annex B

47、(informative) Stiffness of the structure example Example for the calculation. a) b) Key FaForce applied at point a D2distance travelled by point D FbForce applied at point b 1 main table top FcForce applied at point c 2 stops FdForce applied at point d D measurement point D1distance travelled by poi

48、nt D Figure B.1 Stiffness of the structure BS EN 527-2:2016EN 527-2:2016 (E) 11 Gained values when applying the forces (examples): Case A - Longitudinal direction: When applying Fa: 5 mm When applying Fb: 4 mm 15 4 9 abD F F mm mm mm=+= + = (B.1) Upper height of table top: 743 mm = 0,743 m 9 12,11 /

49、0,743 mmmm mm= (B.2) Case B - Transverse direction: When applying Fc: 4 mm When applying Fd: 3 mm 24 3 7 cdD F F mm mm mm=+= + = (B.3) Upper height of table top: 743 mm = 0,743 m 7 9, 42 /0,743 mmmm mm= (B.4) This page deliberately left blankThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services.BSI is incorporated by Royal Charter. British Standards and other standardization products are published by BSI Standards Limited.British S

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