EN 14727-2005 en Laboratory furniture - Storage units for laboratories - Requirements and test methods《实验室设备 实验室存储设备 要求和试验方法》.pdf

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1、BRITISH STANDARDBS EN 14727:2005Laboratory furniture Storage units for laboratories Requirements and test methodsThe European Standard EN 14727:2005 has the status of a British StandardICS 71.040.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g5

2、9g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 14727:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 16 January 2006 BSI 16 January 2006ISBN 0 580 46989 1National forewordThis Briti

3、sh Standard is the official English language version of EN 14727:2005.The UK participation in its preparation was entrusted to Technical Committee FW/0, Furniture, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any e

4、nquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.A list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British

5、 Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online

6、.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover, an inside f

7、ront cover, the EN title page, pages 2 to 22, an inside back cover and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14727December

8、 2005ICS 71.040.10English VersionLaboratory furniture - Storage units for laboratories -Requirements and test methodsMobilier de laboratoire - Elments de stockage pourlaboratoires - Exigences et mthodes dessaiLabormbel - Schrnke und Regale fr Laboratorien -Anforderungen und PrfverfahrenThis European

9、 Standard was approved by CEN on 29 August 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerni

10、ng such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own langua

11、ge and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

12、 Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any

13、 form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14727:2005: EEN 14727:2005 (E) 2 Contents Page Foreword .4 1 Scope .5 2 Normative references .5 3 Terms and definitions.5 4 General test conditions 6 4.1 Preliminary preparation6 4.2 Test equipment .6 4.3 Tolerances.7 4.4

14、Sequence of testing7 5 Test apparatus 7 5.1 Test floor7 5.2 Test wall.7 5.3 Stops7 5.4 Loading pad.7 5.5 Apparatus for slam open of extension elements7 5.6 Dead loads.7 5.7 Glass marbles .8 5.8 Impact plate.8 6 General safety requirements8 7 Test procedures and requirements .8 7.1 Shelves 8 7.1.1 St

15、able positioning of shelves.8 7.1.2 Deflection of shelves 9 7.2 Shelf supports.9 7.3 Pivoted doors 10 7.3.1 General 10 7.3.2 Strength of pivoted doors 10 7.3.4 Durability test on hinged and pivoted doors 10 7.3.5 Safety requirements11 7.3.6 Durability requirement11 7.4 Sliding doors and horizontal r

16、oll fronts 11 7.4.1 General 11 7.4.2 Slam open and shut11 7.4.3 Durability test of sliding doors and horizontal roll fronts12 7.4.4 Safety requirements12 7.4.5 Strength and durability requirements .12 7.5 Drawers and extension elements.12 7.5.1 General 12 7.5.2 Slam open test for drawers equipped wi

17、th open stops .12 7.5.3 Strength of drawers and extension elements.13 7.5.4 Durability test of drawers and extension element13 7.5.5 Displacement of drawer bottoms.13 7.5.6 Safety requirements14 7.5.7 Strength and durability requirements .14 7.6 Flaps 14 7.6.1 General 14 7.6.2 Strength test14 7.6.3

18、Durability test 15 7.6.4 Safety requirements15 7.6.5 Strength and durability requirements .15 EN 14727:2005 (E) 3 7.7 Static load on top surfaces of storage units.15 7.7.1 Top Surfaces .15 7.7.2 Safety requirements15 7.8 Wall and top mounted units .15 7.8.1 General 15 7.8.2 Tests on movable parts, s

19、helf supports and top surfaces 16 7.8.3 Overload 16 7.8.4 Safety requirements16 8 Stability17 8.1 Stability with closed drawers and doors.17 8.2 Stability with open drawers, flaps and doors .17 9 Additional safety requirements for underbench cabinets on castors 17 9.1 Retention of drawers on sudden

20、cessation of movement of unit .17 9.2 Stopping device 17 9.3 Safety requirements17 10 Installation instructions17 11 Test report .18 Annex A (normative) .19 A.1 Slam open test of extension elements 19 A.1.2 Apparatus 19 A.1.3 Calibration .19 Annex B (informative) Example of loading of wall hanging u

21、nits (see 7.8.3 Overload) 22 EN 14727:2005 (E) 4 Foreword This European Standard (EN 14727:2005) 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

22、 an identical text or by endorsement, at the latest by June 2006, and conflicting national standards shall be withdrawn at the latest by June 2006. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European

23、Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14727:2005 (E)

24、5 1 Scope This European Standard specifies requirements and test methods for storage units (see 3.1) used in laboratories. This European Standard specifies strength, durability and safety requirements to prevent serious injury through normal functional use, as well as misuse that might reasonably be

25、 expected to occur. Safety, depending on the structure of the building, is not included e.g. the strength of wall hanging cabinets includes only the cabinet and its parts. The wall and the fixing in the wall are not included. It should be understood that the tests do not ensure that structural failu

26、re will not eventually occur as a result of habitual misuse or after an excessively long period of service. Assessment of ageing, degradation and the heating effect of appliances are not included nor are ergonomic aspects or resistance to fire. 2 Normative references The following referenced documen

27、ts are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 131-2, Ladders -Requirements, testing, marking EN 14072:2003, Glass i

28、n furniture Test methods EN 14749:2005 Domestic and kitchen storage units and worktops - Safety requirements and test methods ISO 7619-2, Rubber, vulcanized or thermoplastic Determination of indentation hardness - Part 2: IRHD pocket meter method 3 Terms and definitions For the purposes of this Euro

29、pean Standard, the following terms and definitions apply. 3.1 storage unit item of furniture consisting of cupboards and/or shelves and/or drawers, intended for the storage of laboratory materials and equipment 3.2 free-standing unit unit not attached to the structure of the building 3.3 built-in un

30、it unit attached to the structure of the building, directly or via other units 3.4 wall-mounted unit unit supported entirely by one or more walls of the building EN 14727:2005 (E) 6 3.5 top mounted unit unit supported by the ceiling 3.6 mobile unit unit equipped with glides, wheels or castors 3.7 la

31、tching device: device which automatically holds a door in the fully open or fully closed position 3.8 locking mechanism device which prevents a door from opening once it has been activated by a deliberate movement 4 General test conditions 4.1 Preliminary preparation The furniture shall be tested as

32、 delivered. If of knock-down type, it shall be assembled according to instructions supplied with the furniture. If the furniture can be assembled or combined in different ways, the most adverse combination shall be used for each test. The same is valid for units that can be combined with other units

33、 or components. The test unit shall be stored in indoor ambient conditions for at least one week immediately prior to testing. Any deviation from this procedure shall be stated in the test report. Except for the deflection of shelves, the tests shall be carried out in indoor ambient conditions, but

34、if during a test the temperature is outside the range 15 C to 25 C, the maximum and/or minimum temperature shall be recorded in the test report. The tests for the deflection of shelves shall be carried out at a relative humidity of 45 % to 55 %, If during a test the relative humidity is outside this

35、 range, the maximum and/or minimum shall be recorded in the test report. Where applicable, units shall be mounted with the fixing points specified by the manufacturer, using fixings which will not fail during the tests. Tighten any assembly fittings before testing. The tests refer to furniture parts

36、 with conventional function. Combination of tests may be necessary to cover the properties of multi-function components, e.g. a shelf that can be pulled out on runners shall be tested for strength of shelf supports and tested for strength of the runners. 4.2 Test equipment The forces in the static l

37、oad tests shall be applied sufficiently slowly to ensure that dynamic loads are negligible. Operation tests shall be carried out sufficiently slowly to ensure that kinetic heating does not occur. Unless otherwise specified, the test loads may be applied by any suitable device because results are not

38、 dependent upon the apparatus, provided the test equipment does not restrict deformation under load or tipping except when specifically required. EN 14727:2005 (E) 7 4.3 Tolerances Unless otherwise stated the following tolerances are applicable: forces 5 % of the nominal force; velocities 5 % of the

39、 nominal velocity; masses 1,0 % of the nominal mass; dimensions 1,0 mm on the nominal dimension; Angles 2 of the nominal angle. The accuracy for the positioning of loading pads shall be 5;mm. If masses are used instead of forces, the relationship 10 N = 1 kg shall be used. 4.4 Sequence of testing Al

40、l the tests specified for a component, e.g. doors, shall be carried out in the sequence laid down in this European Standard, but it is not necessary to test the different components of the article e.g. doors or drawers in the sequence of the clauses. All tests specified for a component part and/or u

41、nit shall be carried out on the same sample. 5 Test apparatus 5.1 Test floor A rigid, horizontal and flat surface. 5.2 Test wall A rigid, vertical and plane surface. 5.3 Stops Stops to prevent the article from sliding but not tilting, not higher than 12 mm except in cases where the design of the ite

42、m necessitates the use of higher stops, in which case the lowest that will prevent the item from sliding shall be used. 5.4 Loading pad A rigid cylindrical object, 50 mm in diameter, having a flat face with 12 mm radius on the edge. 5.5 Apparatus for slam open of extension elements Two examples for

43、a suitable apparatus as well as calibration instructions are given in annex A. 5.6 Dead loads Masses shall be designed so that they do not reinforce the structure or redistribute the stresses. Bags shall be divided into small compartments to prevent the contents from moving during the test. EN 14727

44、:2005 (E) 8 5.7 Glass marbles Marbles between 10 mm and 15 mm in diameter shall be used during the test described in 7.5 (slam open test of drawers). They shall be in a flexible bag large enough to allow them to move during the test. 5.8 Impact plate A 1,7 kg impact plate, with a steel plate of 200

45、mm -109 mm -10 mm faced with a 3 mm thick layer of rubber with a hardness of (85 10) IRHD according to ISO 7619-2. 6 General safety requirements Components or parts of the storage units and worktops of storage units with which the user may come into contact during normal use shall have no burrs and/

46、or sharp edges, nor shall there be open-ended tubes. To avoid the hazard of a pinching or scissoring action between moving parts accessible during normal use the distance between such parts shall be kept to less than 8 mm or greater than 25 mm in any position during movement, with the exception of d

47、oors (including hinges) and extension elements (including runners), but including the distance between handles and other parts. In order to avoid pinching points for feet the safety height for vertically moving units shall be at least 100 mm from the floor. All roll front doors sliding vertically sh

48、all not move by themselves from any position higher than 50 mm measured from the closed position if this can cause any injury. All extension elements whose mass including contents exceeds 10 kg (see table 1) shall have effective open stops, i.e. they shall resist being pulled out of the carcase once

49、 by a force of 200 N applied to the handle of the loaded drawer or they shall be supplied with a label on the drawers front, that the drawer can easily be pulled out. Any external, vertical glass component 0.1 m2in area, where the smallest dimension is greater than or equal to 200 mm and any part of which is less than 900 mm above the floor, shall not break when tested according to EN 14072, when using a drop height of 60 mm or shall break as specified in EN 14072:2003, clause 7, C2 or C3. At least two of the wheels or castors of movable units sh