1、April 2007 Normenausschuss Laborgerte und Laboreinrichtungen (FNLa) im DIN Preisgruppe 8DIN Deutsches Institut fr Normung e.V. Jede Art der Vervielfltigung, auch auszugsweise, nur mit Genehmigung des DIN Deutsches Institut fr Normung e.V., Berlin, gestattet.ICS 71.040.10!,f+8“9670821www.din.deDVorno
2、rmDIN CEN/TS 14175-5Abzge Teil 5: Empfehlungen fr Installation und Wartung;Englische Fassung CEN/TS 14175-5:2006Fume cupboards Part 5: Recommendations for installation and maintenance;English version CEN/TS 14175-5:2006Sorbonnes Partie 5: Recommandations pour installation et entretien;Version anglai
3、se CEN/TS 14175-5:2006Alleinverkauf der Normen durch Beuth Verlag GmbH, 10772 Berlin www.beuth.deGesamtumfang 11 SeitenDIN CEN/TS 14175-5:2007-04 2 Nationales Vorwort Die europische Technische Spezifikation CEN/TS 14175-5 wurde vom Arbeitsausschuss WG 4 Abzge im CEN/TC 332 Laborausrstungen ausgearbe
4、itet. Das zustndige deutsche Spiegelgremium ist der Arbeitsausschuss Abzge und Laborlufttechnik im Normenausschuss Laborgerte und Laboreinrichtungen. Eine Vornorm ist das Ergebnis einer Normungsarbeit, das wegen bestimmter Vorbehalte zum Inhalt oder wegen des gegenber einer Norm abweichenden Aufstel
5、lungsverfahrens vom DIN noch nicht als Norm herausgegeben wird. Zur vorliegenden Vornorm wurde kein Entwurf verffentlicht. Erfahrungen mit dieser Vornorm sind erbeten vorzugsweise als Datei per E-Mail an fnladin.de in Form einer Tabelle. Die Vorlage dieser Tabelle kann im Internet unter http:/www.di
6、n.de/stellungnahme abgerufen werden; oder in Papierform an den Normenausschuss Laborgerte und Laboreinrichtungen, Theodor-Heuss-Allee 25, 60486 Frankfurt. DIN EN 14175, Abzge, besteht aus: Teil 1: Begriffe Teil 2: Anforderungen an Sicherheit und Leistungsvermgen Teil 3: Baumusterprfverfahren Teil 4:
7、 Vor-Ort-Prfverfahren Teil 6: Abzge mit variablem Luftstrom Der Teil 5 dieser Normenreihe (Empfehlungen fr Installation und Wartung) wurde u. a. wegen des empfehlenden Charakters des Dokuments nicht als Norm sondern als europische Technische Spezifikation TS 14175-5 verffentlicht. Auf die Deutsche F
8、assung dieser europischen Technischen Spezifikation wurde wegen inhaltlicher Vorbehalte verzichtet; auerdem steht diese Technische Spezifikation im Widerspruch zum Gemeinsamen Deutschen Standpunkt zur Normung auf dem Gebiet des betrieblichen Arbeitsschutzes. Vornorm TECHNICAL SPECIFICATION SPCIFICAT
9、ION TECHNIQUE TECHNISCHE SPEZIFIKATION CEN/TS 14175-5 August 2006 ICS 71.040.10 English Version Fume cupboards Part 5: Recommendations for installation and maintenance Sorbonnes Partie 5 : Recommandations pour installation et entretien Abzge Teil 5: Empfehlungen fr Installation und Wartung This Tech
10、nical Specification (CEN/TS) was approved by CEN on 20 May 2006 for provisional application. The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit theircomments, particularly on the question whether the CEN/TS can be
11、 converted into a European Standard. CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to th
12、e CEN/TS)until the final decision about the possible conversion of the CEN/TS into an EN is reached. 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, Luxe
13、mbourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, 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 2006 CEN All r
14、ights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. CEN/TS 14175-5:2006: ECEN/TS 14175-5:2006 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Installation of fume cupboards 4 4.1 General4 4.2 Space nee
15、ds and dimensions 4 4.3 Fume cupboards and escape routes .7 4.4 Fume extract and laboratory make-up air systems7 4.5 Fume cupboards temporarily out of use.7 5 Maintenance of fume cupboards7 5.1 General7 5.2 Routine testing.7 Bibliography9 Vornorm CEN/TS 14175-5:2006 (E) 3 Foreword This Technical Spe
16、cification (CEN/TS 14175-5:2006) has been prepared by Technical Committee CEN/TC 332 Laboratory equipment, the secretariat of which is held by DIN. 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 he
17、ld responsible for identifying any or all such patent rights. The European Standard 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 6: Variable
18、air volume fume cupboards Due to its informative contents, Part 5 of EN 14175 is published as a Technical Specification (CEN/TS). According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to announce this Technical Specification: Aus
19、tria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Vornorm CEN/TS 141
20、75-5:2006 (E) 4 1 Scope This Technical Specification specifies a selection of recommendations for the installation and maintenance of fume cupboards in accordance with EN 14175-2 and EN 14175-6. The maintenance recommendations can be applicable to other fume cupboards as well. 2 Normative references
21、 The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 13779, Ventilation for non-residential buildi
22、ngs Performance requirements for ventilation and room-conditioning systems EN 14175-1:2003, Fume cupboards Part 1: Vocabulary EN 14175-3:2003, Fume cupboards Part 3: Type test methods EN 14175-4:2004, Fume cupboards Part 4: On-site test methods EN 14175-6:2006, Fume cupboards Part 6: Variable air vo
23、lume fume cupboards 3 Terms and definitions For the purposes of this Technical Specification, the terms and definitions given in EN 14175-1:2003, EN 14175-3:2003 and EN 14175-6:2006 apply. 4 Installation of fume cupboards 4.1 General This clause gives recommendations for the installation of fume cup
24、boards, including siting and connection to and interfacing with building ventilation and services systems. NOTE 1 See EN 14056:2003, Clauses 8, 9 and 11, particularly regarding services accessibility, services input and services outlets. NOTE 2 Attention is drawn to national regulations, among other
25、s in respect of liability during installation of fume cupboards within laboratories. 4.2 Space needs and dimensions 4.2.1 Except where national regulations indicate otherwise, the following spaces should be allowed between fume cupboards and building elements or other equipment. All dimensions given
26、 are for guidance. Alternatives may be appropriate, although their effectiveness should be objectively verified, preferably by means of test methods described in EN 14175-4 and, for VAV fume cupboards, in EN 14175-6. 4.2.2 The distance from the sash to any part of the laboratory frequently used by o
27、ther personnel in moving from one part of the laboratory or the building to another should be at least 1 m (see Figure 1). Vornorm CEN/TS 14175-5:2006 (E) 5 Figure 1 Distance to the sash 4.2.3 The distance between the sash and a bench top opposite to it and used by the same operator should be at lea
28、st 1,4 m (see Figure 2). NOTE With more than one operator this distance may need to be greater. Figure 2 Distance sash to benchtop 4.2.4 There should be no opposing wall (or other opposing obstruction likely to affect the air flow) within at least 1,4 m of the sash (see Figure 3). This dimension sho
29、uld be increased to meet larger air flow requirements of certain types or numbers of fume cupboards and can typically approach 2 m. Figure 3 Distance sash to wall 4.2.5 The interaction between rows of fume cupboards which face each other sash to sash should be carefully considered (see Figure 4). Vo
30、rnorm CEN/TS 14175-5:2006 (E) 6 Figure 4 Distance sash to sash 4.2.6 The impact of room air inlets on the performance of fume cupboards should carefully be considered. Room air flow should not exceed 0,2 m/s at a zone 400 mm from the sash at the positions given in EN 14175-4:2004, 5.8.3. A ceiling h
31、eight of 3 m is recommended and a height of 2,7 m should be the minimum. 4.2.7 Large isolated obstructions, e. g. an architectural column, at the side of the fume cupboard and projecting beyond the plane of the sash can influence the performance of the fume cupboard (see example in Figure 5). Figure
32、 5 Distance fume cupboard to column 4.2.8 No doorway frequently used by personnel should be within 1 m of the sash or within 0,3 m of the side of a fume cupboard (see Figure 6 and Figure 7). This recommendation does not apply for doorways exclusively used as emergency exit. Figure 6 Distance sash to
33、 doorway Figure 7 Distance fume cupboard to doorway Vornorm CEN/TS 14175-5:2006 (E) 7 4.3 Fume cupboards and escape routes The possibility of a fire or explosion in a fume cupboard should always be considered when positioning a fume cupboard in a laboratory. Special attention should be given to the
34、positioning, if national regulations permit a single escape route for laboratory rooms. 4.4 Fume extract and laboratory make-up air systems The air requirements of the fume cupboards within a laboratory should be given to the designers of the fume extract and air make-up system of the laboratory roo
35、m or building to enable the optimal function of the fume cupboards. Requirements for room and building ventilation are given in EN 13779. 4.5 Fume cupboards temporarily out of use Contamination of laboratory rooms from fume cupboards that are not in use, but which may have previously been contaminat
36、ed should be avoided. This can be prevented e. g. by having a negative pressure in the ducts relative to the room with the fume cupboards. This negative pressure can be maintained by having a low extract volume flow through the fume cupboards. Other options are either the complete sealing of the fum
37、e cupboards or intensive cleaning and sealing of the fume cupboards duct system. 5 Maintenance of fume cupboards 5.1 General This clause gives recommendations for the preventive and corrective maintenance of fume cupboards. NOTE 1 In the use of laboratory equipment, risk assessment and appropriate p
38、recautions are the responsibility of the organization running the laboratory and the laboratory user. NOTE 2 Attention is drawn to EN 13306, Maintenance terminology, which fixes vocabulary and avoids confusion. Maintenance is the combination of all technical, administrative and managerial actions, d
39、uring the life cycle of a fume cupboard intended to retain it in, or restore it to, a state in which it can perform the required function. Preventive maintenance is carried out at predetermined intervals or according to prescribed criteria and is intended to reduce the probability of failure or the
40、degradation of the functioning of a fume cupboard. Corrective maintenance is carried out after fault recognition and intended to put a fume cupboard into a state in which it can perform the required function. 5.2 Routine testing For corrective and preventive maintenance, the instructions of the fume
41、 cupboards manufacturer should be followed regarding general maintenance, cleaning and periodic inspections. As a minimum, the manufacturers instructions for maintenance should include details to the following items of the checklist: a) sash suspension and sash stop; b) protection against splashes;
42、c) cleanliness of the fume cupboard and cleaning of baffles; Vornorm CEN/TS 14175-5:2006 (E) 8 d) integrity of mechanical assembly, corrosion; e) pressure relief, if supplied; f) air flow and VAV system, if appropriate; g) indicator function/sensor response; h) leakages; i) hygiene; k) services; l)
43、illumination; m) noise; n) electrical isolation; o) fire alarm devices, if appropriate. Further aspects may be necessary to address all maintenance needs. Routine test methods for most items of this checklist are given in EN 14175-4:2004, Clause 6 and the routine test report should comply with EN 14
44、175-4:2004, 9.2 or 9.4. Additional routine test methods for VAV fume cupboards are given in EN 14175-6:2006, Clause 6. In addition, the surroundings of the fume cupboards should be examined in respect of furniture or large equipment installed after the installation of the fume cupboard which do not comply with the requirements given in Clause 4. Vornorm CEN/TS 14175-5:2006 (E) 9 Bibliography 1 EN 13306, Maintenance terminology 2 EN 14056, Laboratory furniture Recommendations for design and installation 3 EN 14175-2, Fume cupboards Part 2: Safety and performance requirements Vornorm
