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1、BRITISH STANDARD BS EN 14175-2:2003 Incorporating amendment no. 1 Fume cupboards Part 2: Safety and performance requirements The European Standard EN 14175-2:2003 has the status of a British Standard ICS 71.040.10 ? Licensed copy:PONTYPRIDD COLLEGE, 06/03/2008, Uncontrolled Copy, BSI BS EN 14175-2:2
2、003 This British Standard, was published under the authority of the Standards Policy and Strategy Committee on 28 November 2003 BSI 2007 ISBN 0 580 42946 6 National foreword This British Standard was published by BSI. It is the UK implementation of EN 14175-2:2003. Together with BS EN 14175-1:2003,
3、BS EN 14175-3:2003, BS EN 14175-4:2004, DD CEN/TS 14175-5:2006, BS EN 14175-6:2006, it supersedes BS 7258-1:1994, BS 7258-2:1994, BS 7258-3:1994 and BS 7258-4:1994 which are withdrawn. To ensure completeness of the requirements in the British implementation of these European standards, the safeguard
4、s contained in the BS 7258 series (i.e. the recommendations for the exchange of information, installation, selection, use and maintenance) are retained. National Annex NA reproduces clauses 2.1, 2.2, 2.3, 2.4, 3.2 and 3.3 of BS 7258-2:1994, plus clauses 4.2 and 5 of BS 7258-3:1994 The UK participati
5、on in its preparation was entrusted to Technical Committee LBI/18, Laboratory furniture and fittings. A list of organizations represented on LBI/18 can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsi
6、ble for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments 1704030 April 2007Addition of National Annex NA and revision of supersession details Licensed copy:PONTYPRIDD COLLEGE, 06/03/20
7、08, Uncontrolled Copy, BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14175-2 May 2003 ICS 71.040.10 English version Fume cupboards - Part 2: Safety and performance requirements Sorbonnes - Partie 2: Exigences de scurit et de performances Abzge - Teil 2: Anforderungen an Sicherheit und Lei
8、stungsvermgen This European Standard was approved by CEN on 3 March 2003. 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 and bibliogr
9、aphical references concerning such national standards may be obtained on application to the 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 CE
10、N member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, No
11、rway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CENAll rights of exploitation in any form and by any means reserved worldwid
12、e for CEN national Members. Ref. No. EN 14175-2:2003 E Licensed copy:PONTYPRIDD COLLEGE, 06/03/2008, Uncontrolled Copy, BSI EN 14175-2:2003 (E) 2 Contents page Foreword3 Introduction.4 1Scope 4 2Normative references 4 3Terms and definitions5 4Dimensions.5 4.1Overall width of fume cupboard.5 4.2Overa
13、ll depth of fume cupboard.5 4.3Height of work surface 5 4.4Dimensions for customized fume cupboards.5 5Basic safety and performance objectives.5 6Materials6 6.1General requirements6 6.2Glass components.6 6.3Sash.6 7Basic safety requirements6 7.1General requirements6 7.2Construction.6 7.3Sash.7 8Airf
14、low.8 8.1Threshold values .8 8.2Air flow indicator8 9Services 8 9.1Outlets.8 9.2Drainage8 9.3Electrical sockets.8 9.4Lighting.9 10Product manual9 11Marking and labelling 9 Annex A (informative) Conformity evaluation .10 Bibliography12 (informative) Recommendations for the exchange of information and
15、 National Annex NA recommendations for installation .13 Licensed copy:PONTYPRIDD COLLEGE, 06/03/2008, Uncontrolled Copy, BSI ? EN 14175-2:2003 (E) 3 Foreword This document (EN 14175-2:2003) has been prepared by Technical Committee CEN/TC 332, “Laboratory Equipment“, the secretariat of which is held
16、by DIN. 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 November 2003, and conflicting national standards shall be withdrawn at the latest by November 2003. This part of EN 14175 is applicable fro
17、m the date of publication (DOP). For fume cupboards complying with a national standard in Europe until DOP, this part of EN 14175 or the national standard may be applied until DOP + 6 months. This part of EN 14175 is not applicable to fume cupboards which have been installed in the workplace before
18、DOP + 6 months if not otherwise declared by the manufacturer. EN 14175 consists of the following parts, under the general title Fume cupboards Part 1: Vocabulary Part 2: Safety and performance requirements Part 3: Type test methods Part 4: On-site test methods Part 5: Recommendations for installatio
19、n and maintenance (in preparation) Part 6: Variable air volume fume cupboards (in preparation) According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark,
20、Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. Licensed copy:PONTYPRIDD COLLEGE, 06/03/2008, Uncontrolled Copy, BSI ? EN 14175-2:2003 (E) 4 Introduction The performance
21、 of a fume cupboard can be expressed conveniently in qualitative terms as the ability to contain and remove a pollutant or pollutants released from a source within the workspace of the fume cupboard, as well as the ability to minimise possible perturbing influences, such as air draughts, operator mo
22、vement, personnel traffic. This is effected by an inward airflow through its opening, reducing risk to the operator and other personnel which is the primary function of this type of protective device. Other important performance criteria are the protection against splashes, dangerous atmospheres and
23、 the effects of implosions. The safety requirements given in this part 2 of the European Standard provide a guideline for the construction of fume cupboards and serve as basis for testing of fume cupboards. Two different procedures to investigate the safety and performance are available: a)type test
24、ing in accordance with the requirements given in this part 2 and the test methods given in part 3 of this European Standard; b)testing on-site in accordance with the requirements given in this part 2 and the test methods given in part 4 of this European Standard. This on-site testing investigates an
25、 individual fume cupboard in its particular environment and does not constitute a type test. The results cannot be transferred to further production of the design or model of the fume cupboard concerned. 1 Scope This part 2 of EN 14175 specifies safety and performance requirements and objectives for
26、 general purpose fume cupboards. In addition, dimensions and marking of general purpose fume cupboards are specified as well as requirements on the product manual to be supplied with fume cupboards. Recommendations on the evaluation of conformity of general purpose fume cupboards with the requiremen
27、ts of this part 2 of EN 14175 are given in the informative annex A. For terms and definitions of fume cupboards EN 14175-1 applies. For type testing of fume cupboards prEN 14175- 3 applies. For microbiological safety cabinets EN 12469 applies. This part of EN 14175 does not address recirculatory fil
28、tration fume cupboards or fume cupboards for carrying out work on radioactive materials. For special purpose fume cupboards other requirements may apply. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative refe
29、rences are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the
30、 latest edition of the publication referred to applies (including amendments). EN 292-1, Safety of machinery - Basic concepts, general principles for design - Part 1: Basic terminology, methodology. EN 292-2, Safety of machinery - Basic concepts, general principles for design - Part 2: Technical pri
31、nciples and specifications. Licensed copy:PONTYPRIDD COLLEGE, 06/03/2008, Uncontrolled Copy, BSI ? EN 14175-2:2003 (E) 5 EN 12600:2002, Glass in building - Pendulum test - Impact test method and classification for flat glass EN 13150:2001, Workbenches for laboratories Dimensions, safety requirements
32、 and test methods. EN 13792, Colour coding of taps and valves for use in laboratories. EN 14175-1:2003, Fume cupboards - Part 1: Vocabulary. prEN 14175-3:2003, Fume cupboards - Part 3: Type test methods. EN 60529, Degrees of protection provided by enclosures (IP-Code) (IEC 60529:1989). EN ISO 12543-
33、1, Glass in building - Laminated glass and laminated safety glass - Part 1: Definitions and description of component parts (ISO 12543-1:1998). 3 Terms and definitions For the purposes of this part 2 of EN 14175, the terms and definitions given in EN 14175-1:2003 apply. 4 Dimensions 4.1 Overall width
34、 of fume cupboard The overall width of fume cupboards shall be a multiple of 100 mm with preferable dimensions of 1200 mm and 1500 mm. 4.2 Overall depth of fume cupboard The overall depth of fume cupboards shall be between 600 mm and 1200 mm. 4.3 Height of work surface The height of the work surface
35、 of fume cupboards shall not exceed ( 50 0 900) mm with preferable heights of 0 mm, 500 mm, 720 mm and 900 mm with a tolerance of + 50 mm. 4.4 Dimensions for customized fume cupboards Other dimensions than those given in 4.1 to 4.3 may be agreed between customer and manufacturer. Tolerances shall be
36、 specified by the manufacturer. 5 Basic safety and performance objectives Fume cupboards shall be designed such that hazardous concentrations or quantities of airborne contaminants are prevented from escaping from the fume cupboard into the room; fumes are removed efficiently to reduce the susceptib
37、ility to an explosive or hazardous atmosphere inside the workspace; the user is protected by a front sash against splashes of substances and flying particles. Licensed copy:PONTYPRIDD COLLEGE, 06/03/2008, Uncontrolled Copy, BSI ? EN 14175-2:2003 (E) 6 6 Materials 6.1 General requirements Fume cupboa
38、rds shall be made of materials which withstand the anticipated mechanical, chemical and thermal stresses during expected use and shall not be easily combustible. The materials of construction of those parts of the fume cupboard (excluding services) that are likely to come into contact with the fumes
39、 shall be selected to suit the nature of the process carried out within the fume cupboard. 6.2 Glass components Any glass component 0,1 m and any part of which is less than 900 mm above the floor shall comply with EN 12600:2002, type 2B or type 2C. 6.3 Sash The sash shall be transparent. It shall be
40、 made from materials to give optimal physical protection from the accidental emission of substances. Toughened or laminated glass in accordance with EN 12600, type 2B or type 2C or in accordance with EN ISO 12543-1 or suitable plastics materials shall be used for the sash between the operator and th
41、e workspace. 7 Basic safety requirements 7.1 General requirements Fume cupboards shall comply with relevant safety requirements specified in EN 13150:2001, clause 5, and with the following clauses of this European Standard. 7.2 Construction 7.2.1Workspace The workspace of a fume cupboard shall be en
42、closed by side walls, rear wall, front wall with sash, top wall and work surface. There shall be no sashes in side walls to the room. Openings and ducts in side walls between fume cupboards shall be closable. 7.2.2Work surface The work surface of bench type and low level fume cupboards shall be flat
43、 with a raised edge at the front. Preferably, the raised edge should surround the work surface at all sides. If a spillage tray is fitted, provision shall be made for spillage to pass down to, and be contained by, the spillage tray underneath. The spillage tray shall be ventilated. Gaps at the side
44、of the work surface shall be provided to allow spilt liquid to drain into the spillage tray rapidly. The work surface shall carry a minimum load of 2000 N applied on an area of 120 mm x 120 mm without damage or deformation. The work surface of walk-in fume cupboards may be integrated in the floor of
45、 the room. 7.2.3Baffles Baffles shall be constructed in such a way as to be easily cleaned and maintained. It shall not be possible to alter their position from the original design positions. Licensed copy:PONTYPRIDD COLLEGE, 06/03/2008, Uncontrolled Copy, BSI ? EN 14175-2:2003 (E) 7 7.2.4Pressure r
46、elief If a pressure relief for the case of an explosion in the workspace is required, a means of effectively relieving a pressure wave shall be provided. The fume cupboard shall be designed such that the pressure relief cannot be a danger for the operating personnel or any other person in the fume c
47、upboards surrounding. 7.2.5Maintenance access Provision shall be made for safe and reasonably convenient access to all mechanical and electrical equipment provided as part of the fume cupboard. 7.2.6Base The base of the fume cupboard shall carry the fume cupboard and the minimum surface load in acco
48、rdance with 7.2.2 without deformation or unsteadiness. 7.3 Sash 7.3.1Operational sash opening The operational sash opening shall be variable in the direction of the sash movement. Its maximum position should preferably be 500 mm in the direction of sash movement and shall not exceed 600 mm. This dim
49、ension shall be clearly marked on the fume cupboard. No limits are specified for walk-in and low level fume cupboards. 7.3.2Sash stop For vertical sash(es), some form of stop shall be incorporated to prevent the sash being opened more than the maximum operational sash opening. It shall not be possible to override the stop more than the maximum operational sash opening without a deliberate act on the part of the operator. The