1、January 2011 Translation by DIN-Sprachendienst.English price group 12No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC
2、S 13.040.40!$l“1739891www.din.deDDIN EN 1822-1High efficiency air filters (EPA, HEPA and ULPA) Part 1: Classification, performance testing, markingEnglish translation of DIN EN 1822-1:2011-01Schwebstofffilter (EPA, HEPA und ULPA) Teil 1: Klassifikation, Leistungsprfung, KennzeichnungEnglische berset
3、zung von DIN EN 1822-1:2011-01Filtres air haute efficacit (EPA, HEPA et ULPA) Partie 1: Classification, essais de performance et marquageTraduction anglaise de DIN EN 1822-1:2011-01SupersedesDIN EN 1822-1:1998-07www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall
4、 be considered authoritative.2201.11 DIN EN 1822-1:2011-01 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 195 “Air filters for general air cleaning” (Secretariat: UNI, Italy). The responsible German body involved in its prepar
5、ation was the Normenausschuss Maschinenbau (Mechanical Engineering Standards Committee), Working Committee NA 060-09-21-02 AK Schwebstofffilter of Section Allgemeine Lufttechnik. Representatives of stakeholders, manufacturers and users of high efficiency air filters, and of research and testing inst
6、itutes contributed to this standard. The European Standards and the International Standard referred to in Clause 2 have been published as the corresponding DIN EN or DIN EN ISO Standards with the same number. EN 1822 comprises 5 parts, which have been revised and published in 2009 as European Standa
7、rds. Amendments This standard differs from DIN EN 1822-1:1998-07 as follows: a) an alternative test method using a solid (instead of a liquid) test aerosol has been added; b) a method for testing and classification of filters made out of membrane type filter media has been added; c) a method for tes
8、ting and classification of filters made out of synthetic fibre media has been added; d) a new group “E” for efficient particulate air filters (EPA) has been added; e) an alternative method for leak testing of group H filters with other than panel shape has been added; f) editorial corrections have b
9、een implemented. Previous editions DIN 24184: 1974-10, 1990-12 DIN EN 1822-1: 1998-07 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1822-1 November 2009 ICS 13.040.40 Supersedes EN 1822-1:1998English Version High efficiency air filters (EPA, HEPA and ULPA) - Part 1: Classification, performanc
10、e testing, marking Filtres air haute efficacit (EPA, HEPA et ULPA) - Partie 1: Classification, essais de performance et marquage Schwebstofffilter (EPA, HEPA und ULPA) - Teil 1: Klassifikation, Leistungsprfung, Kennzeichnung This European Standard was approved by CEN on 17 October 2009. CEN members
11、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 bibliographical references concerning such national standards may be obtained on application t
12、o the CEN 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 CEN member into its own language and notified to the CEN Management Centre has the s
13、ame status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
14、 Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means rese
15、rved worldwide for CEN national Members. Ref. No. EN 1822-1:2009: EContents Page Foreword 3Introduction 41 Scope . 52 Normative references . 53 Terms and definitions 54 Symbols and abbreviations . 55 Classification 65.1 General 65.2 Groups of filters 65.3 Groups and Classes of filters . 66 Requireme
16、nts 76.1 General 76.2 Material 76.3 Nominal air volume flow rate 76.4 Pressure difference 76.5 Filtration performance . 77 Test methods 87.1 Test rigs . 87.2 Test conditions . 87.3 Test aerosols 97.4 Survey of test procedures . 97.4.1 General 97.4.2 Step 1: Testing sheet filter medium 97.4.3 Step 2:
17、 Leak test of the filter element. 97.4.4 Step 3: Efficiency test of the filter element 97.4.5 Remarks 97.5 Test procedures 107.5.1 Testing sheet filter media 107.5.2 Leak test of the filter element 137.5.3 Efficiency test of the filter element . 178 Assessment of the filter, documentation, test repo
18、rts . 199 Marking 19Bibliography . 20EN 1822-1:2009 (E) DIN EN 1822-1:2011-01 2Foreword This document (EN 1822-1:2009) has been prepared by Technical Committee CEN/TC 195 “Air filters for general air cleaning”, the secretariat of which is held by UNI. This European Standard shall be given the status
19、 of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2010, and conflicting national standards shall be withdrawn at the latest by May 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject of pa
20、tent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1822-1:1998. It is dealing with the performance testing of efficient particulate air filters (EPA), high efficiency particulate air filters (HEPA) and ultra low pe
21、netration air filters (ULPA) at the manufacturers site. EN 1822, High efficiency air filters (EPA, HEPA and ULPA), consists of the following parts: Part 1: Classification, performance testing, marking Part 2: Aerosol production, measuring equipment, particle counting statistics Part 3: Testing flat
22、sheet filter media Part 4: Determining leakage of filter elements (scan method) Part 5: Determining the efficiency of filter elements This European Standard is based on particle counting methods which actually cover most needs of different applications. The difference between this European Standard
23、and its previous edition lies in the addition of: an alternative test method for using a solid, instead of a liquid, test aerosol; a method for testing and classification of filters made out of membrane type filter media; a method for testing and classification filters made out of synthetic fibre me
24、dia; and an alternative method for leak testing of group H filters with other than panel shape. Beside that, various editorial corrections have been implemented. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement
25、this European Standard: Austria, Belgium, Bulgaria, 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 t
26、he United Kingdom. EN 1822-1:2009 (E) DIN EN 1822-1:2011-01 3Introduction As decided by CEN/TC 195, this European Standard is based on particle counting methods which actually cover most needs of different applications. The difference between this European Standard and previous national standards li
27、es in the technique used for the determination of the integral efficiency. Instead of mass relationships, this technique is based on particle counting at the most penetrating particle size (MPPS), which is for micro-glass filter mediums usually in the range of 0,12 m to 0,25 m. For Membrane filter m
28、edia, separate rules apply, see Annex A of EN 1822-5:2009. This method also allows testing ultra low penetration air filters, which was not possible with the previous test methods because of their inadequate sensitivity. EN 1822-1:2009 (E) DIN EN 1822-1:2011-01 41 Scope This European Standard applie
29、s to high efficiency particulate and ultra low penetration air filters (EPA, HEPA and ULPA) used in the field of ventilation and air conditioning and for technical processes, e.g. for applications in clean room technology or pharmaceutical industry. It establishes a procedure for the determination o
30、f the efficiency on the basis of a particle counting method using a liquid (or alternatively a solid) test aerosol, and allows a standardized classification of these filters in terms of their efficiency, both local and integral efficiency. 2 Normative references The following referenced documents ar
31、e 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 1822-2:2009, High efficiency air filters (EPA, HEPA and ULPA) Part 2: Aerosol produ
32、ction, measuring equipment, particle counting statistics EN 1822-3, High efficiency air filters (EPA, HEPA and ULPA) Part 3: Testing flat sheet filter media EN 1822-4:2009, High efficiency air filters (EPA, HEPA and ULPA) Part 4: Determining leakage of filter elements (scan method) EN 1822-5:2009, H
33、igh efficiency air filters (EPA, HEPA and ULPA) Part 5: Determining the efficiency of filter elements EN 14799:2007, Air filters for general air cleaning Terminology EN ISO 5167-1, Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running
34、 full Part 1: General principles and requirements (ISO 5167-1:2003) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 14799:2007 and the following apply. 3.1 nominal air volume flow rate air volume flow rate specified by the manufacturer, at which the f
35、ilter element has to be tested 3.2 superficial face area cross-sectional area of the filter element which is passed by the air flow 3.3 nominal filter medium face velocity nominal air volume flow rate divided by the effective filter medium area 4 Symbols and abbreviations For the purposes of this do
36、cument, the following symbols and abbreviations apply: EN 1822-1:2009 (E) DIN EN 1822-1:2011-01 5dpParticle diameter E Efficiency P Penetration p Pressure RH Relative humidity T Temperature gGeometric standard deviation CNC Condensation nucleus counter DEHS Sebacic acid-bis (2 ethyl hexyl-) ester (t
37、rivial name: di-ethyl-hexyl-sebacate) DMA Differential electric mobility analyser DMPS Differential mobility particle sizer DOP Phthalic acid-bis (2-ethyl hexyl-) ester (trivial name: di-octyl-phthalate) MPPS Most penetrating particle size (= particle size, for which the filtration efficiency is a m
38、inimum) OPC Optical particle counter PSL Poly-Styrol Latex (solid spheres) 5 Classification 5.1 General Filter elements are classified in groups and classes according to their filtration performance (efficiency or penetration). 5.2 Groups of filters According to this standard, filter elements fall i
39、nto one of the following Groups: Group E: EPA filters (Efficient Particulate Air filter); Group H: HEPA filters (High Efficiency Particulate Air filter); Group U: ULPA filters (Ultra Low Penetration Air filter). 5.3 Groups and Classes of filters Filters are classified in Groups and Classes. For each
40、 group a slightly different test procedure applies. All filters are classified according to their filtration performance (see 6.5). Group E filters are subdivided in three Classes: Class E 10; EN 1822-1:2009 (E) DIN EN 1822-1:2011-01 6 Class E 11; Class E 12. Group H filters are subdivided in two Cl
41、asses: Class H 13; Class H 14. Group U filters are subdivided in three Classes: Class U 15; Class U 16; Class U 17. 6 Requirements 6.1 General The filter element shall be designed or marked so as to prevent incorrect mounting. The filter element shall be designed so that when correctly mounted in th
42、e ventilation duct, no leak occurs along the sealing edge. If, for any reason, dimensions do not allow testing of a filter under standard test conditions, assembly of two or more filters of the same type or model is permitted, provided no leaks occur in the resulting filter. 6.2 Material The filter
43、element shall be made of suitable material to withstand normal usage and exposures to those temperatures, humidities and corrosive environments that are likely to be encountered. The filter element shall be designed so that it will withstand mechanical constraints that are likely to be encountered d
44、uring normal use. Dust or fibres released from the filter media by the air flow through the filter element shall not constitute a hazard or nuisance for the people (or devices) exposed to filtered air. 6.3 Nominal air volume flow rate The filter element shall be tested at its nominal air volume flow
45、 rate for which the filter has been designed by the manufacturer. 6.4 Pressure difference The pressure difference across the filter element is recorded at the nominal air volume flow rate. 6.5 Filtration performance The filtration performance is expressed by the efficiency or the penetration of MPPS
46、 particles. EN 1822-1:2009 (E) DIN EN 1822-1:2011-01 7After testing in accordance with Clause 7, filter elements are classified according to Table 1, on the bases of their integral (Group E) or their integral AND local (Groups H and U) MPPS efficiency or penetration. Filters with filter media having
47、 an electrostatic charge are classified according to Table 1, on the bases of their discharged efficiency or penetration as per EN 1822-5:2009, Annex B. Table 1 Classification of EPA, HEPA and ULPA filters Filter Group Integral value Local value a bFilter Class Efficiency (%) Penetration (%) Efficie
48、ncy (%) Penetration (%) E 10 85 15 -c-cE 11 95 5 -c-cE 12 99,5 0,5 -c-cH 13 99,95 0,05 99,75 0,25 H 14 99,995 0,005 99,975 0,025 U 15 99,999 5 0,000 5 99,997 5 0,002 5 U 16 99,999 95 0,000 05 99,999 75 0,000 25 U 17 99,999 995 0,000 005 99,999 9 0,000 1 aSee 7.5.2 and EN 1822-4. bLocal penetration v
49、alues lower than those given in the table may be agreed between supplier and purchaser. cGroup E filters (Classes E10, E11 and E12) cannot and shall not be leak tested for classification purposes. 7 Test methods 7.1 Test rigs The test rigs are described in detail in EN 1822-3, EN 1822-4 and EN 1822-5. The individual metho
