BS EN 779-2002 一般通风用空气颗粒过滤器.过滤性能测定.pdf
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1、BRITISH STANDARD BS EN 779:2002 Particulate air filters for general ventilation Determination of the filtration performance The European Standard EN 779:2002 has the status of a British Standard ICS 91.140.30 ? Licensed copy:PONTYPRIDD COLLEGE, 14/11/2006, Uncontrolled Copy, BSI BS EN 779:2002 This
2、British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 5 December 2002 BSI 5 December 2002 ISBN 0 580 40903 1 National foreword This British Standard is th
3、e official English language version of EN 779:2002. It supersedes BS EN 779:1993 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee MCE/21/3, Air filters other than for air supply for I.C. engines and compressors, which has the responsibility to: A list
4、of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “ International Standard
5、s Correspondence Index” , or by using the “ Search” facility of the BSI Electronic Catalogue or of British Standards Online. 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
6、does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European de
7、velopments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 71 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publicati
8、on Amd. No. DateComments Licensed copy:PONTYPRIDD COLLEGE, 14/11/2006, Uncontrolled Copy, BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 779 November 2002 ICS 91.140.30Supersedes EN 779:1993 English version Particulate air filters for general ventilation - Determination of the filtration p
9、erformance Filtres air de ventilation gnrale pour llimination des particules - Dtermination des performances de filtration Partikel-Luftfilter fr die allgemeine Raumlufttechnik - Bestimmung der Filterleistung This European Standard was approved by CEN on 14 September 2002. CEN members are bound to c
10、omply 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 Manageme
11、nt 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 Management Centre has the same status as the offi
12、cial versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATIO
13、N COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2002 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 779:2002 E Licensed copy:PONTYPRIDD COLLEGE, 14/11/2006, Unc
14、ontrolled Copy, BSI EN 779:2002 (E) 2 Contents page Foreword4 Introduction.5 1Scope 6 2Normative references 6 3Terms and definitions6 4Symbols and abbreviated terms.9 5Requirements.11 6Classification11 7Test rig and equipment .12 7.1Test conditions 12 7.2Test rig12 7.3Aerosol generation 16 7.3.1DEHS
15、 Test Aerosol 16 7.3.2Neutralisation (conditioning) of aerosol16 7.4Aerosol sampling system .18 7.5Flow measurement 20 7.6Particle counter20 7.7Differential pressure measuring equipment .20 7.8Dust feeder .20 8Qualification of test rig and apparatus23 8.1Air velocity uniformity in the test duct 23 8
16、.2Aerosol uniformity in the test duct 23 8.3Particle counter sizing accuracy24 8.4Particle counter zero test25 8.5Particle counter overload test 25 8.6100 % efficiency test25 8.7Zero % efficiency test26 8.8Aerosol generator response time.26 8.9Pressure equipment calibration.26 8.10Pressure drop chec
17、king26 8.11Dust feeder air flow rate27 8.12Neutraliser 29 8.13Summary of qualification requirements29 8.14Apparatus maintenance30 9Test materials.30 9.1Test air - cleanliness, temperature and humidity.30 9.2Test aerosol30 9.3Loading dust.31 9.4Final filter31 10Test procedure.32 10.1Preparation of fi
18、lter to be tested.32 10.2Initial pressure drop 32 10.3Initial efficiency32 10.3.1Efficiency of discharged filter media.32 10.3.2Efficiency measurement32 10.4Dust loading .33 Licensed copy:PONTYPRIDD COLLEGE, 14/11/2006, Uncontrolled Copy, BSI ? EN 779:2002 (E) 3 10.4.1Dust loading procedure.33 10.4.
19、2Arrestance 34 10.4.3Efficiency35 10.4.4Average efficiency.35 10.4.5Dust holding capacity35 11Uncertainty calculation of the test results36 12Reporting37 12.1General37 12.2Summary.38 12.3Efficiency39 12.4Pressure drop and air flow rate40 12.5Arrestance and dust holding capacity.40 12.6Marking.40 Ann
20、ex A (normative) Electrostatic discharging procedure.49 A.1General49 A.2Test method for discharging of filter material49 A.2.1Equipment 49 A.2.2Preparation of test samples50 A.2.3Measurement of the filter efficiency 50 A.2.4Isopropanol test.50 A.3Expression of results 50 Annex B (informative) Sheddi
21、ng from filters.51 B.1General51 B.2Shedding.51 B.2.1Particle bounce51 B.2.2Release of fibres or particulate matter from filter material .51 B.2.3Re-entrainment of particles 51 B.3Testing52 B.4References52 Annex C (informative) Commentary.53 C.1General53 C.2Classification53 C.3Test53 C.3.1Test aeroso
22、l53 C.3.2Loading dust 54 C.3.3Distribution and sampling of aerosols54 C.3.4Particle counter characteristics.54 C.3.5Flat sheet test.54 C.4Filtration characteristics.55 C.4.1General55 C.4.2Pressure drop.55 C.4.3Discharged efficiency55 Annex D (informative) Pressure drop calculation.57 Annex E (inform
23、ative) Example of a completed test report.59 E.1Example of test reports.59 E.2Examples of calculations67 A.3Final results at 450 Pa.70 Bibliography71 Licensed copy:PONTYPRIDD COLLEGE, 14/11/2006, Uncontrolled Copy, BSI ? EN 779:2002 (E) 4 Foreword This document (EN 779:2002) has been prepared by Tec
24、hnical Committee CEN/TC 195 “Air filters for general air cleaning“, the secretariat of which is held 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 May 2003, and conflicting national stan
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- BS EN 779-2002 一般通风用空气颗粒过滤器.过滤性能测定 779 2002 一般 通风 空气 颗粒 过滤器 过滤 性能 测定
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