SIST EN 1822-1:2010
(Main)High efficiency air filters (EPA, HEPA and ULPA) - Part 1: Classification, performance testing, marking
High efficiency air filters (EPA, HEPA and ULPA) - Part 1: Classification, performance testing, marking
This European Standard applies 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 clean room technology or applications in the nuclear and
pharmaceutical industry. It establishes a procedure for the determination of 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 overall efficiency.
Schwebstofffilter (EPA, HEPA und ULPA) - Teil 1: Klassifikation, Leistungsprüfung, Kennzeichnung
Diese Europäische Norm gilt für Hochleistungs-Partikelfilter und Hochleistungs-Schwebstofffilter (EPA, HEPA
und ULPA) im Bereich der Raum- und Prozesslufttechnik, z. B. Anwendungen in der Reinraumtechnik oder in
der pharmazeutischen Industrie.
Sie legt ein Verfahren zur Prüfung des Abscheidegrades auf Basis von Partikelzählverfahren unter
Verwendung eines flüssigen (oder alternativ eines festen) Prüfaerosols fest und ermöglicht eine einheitliche
Klassifizierung der Schwebstofffilter nach dem Abscheidegrad, sowohl nach dem integralen als auch nach
dem lokalen Abscheidegrad.
Filtres à air à haute efficacité (EPA, HEPA et ULPA) - Partie 1: Classification, essais de performance et marquage
La présente Norme européenne est applicable aux filtres à air à haute efficacité et à très faible pénétration (EPA, HEPA et ULPA) utilisés dans le domaine de la ventilation et de la climatisation, ainsi que dans des procédés techniques tels que la technique en salle blanche ou l’industrie pharmaceutique.
Elle définit une méthode de détermination de l’efficacité, à partir d’une méthode du comptage de particules à l’aide d’un aérosol d’essai avec des particules liquides (ou solides) et permet une classification normalisée de ces filtres en fonction de leur efficacité, locale ou globale.
Visoko učinkoviti zračni filtri (EPA, HEPA in ULPA) - 1. del: Klasifikacija, preskušanje lastnosti, označevanje
Ta evropski standard velja za visoko učinkovite zračne filtre drobnih delcev in zračne filtre z ultra nizko penetracijo (EPA, HEPA in ULPA), ki se uporabljajo na področju prezračevanja in klimatizacije ter za tehnične postopke, npr. za naprave v tehnologiji čistega prostora ali farmacevtski industriji. Vzpostavlja postopek za določitev učinkovitosti na osnovi metode štetja delcev z uporabo tekočega testnega aerosola (ali v trdnem stanju kot druga možnost) ter omogoča standardizirano klasifikacijo teh filtrov glede na njihovo učinkovitost, tako lokalno kot celovito učinkovitost.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.VLILNDFLMDSchwebstofffilter (EPA, HEPA und ULPA) - Teil 1: Klassifikation, Leistungsprüfung, KennzeichnungFiltres à air à haute efficacité (EPA, HEPA et ULPA) - Partie 1: Classification, essais de performance et marquageHigh efficiency air filters (EPA, HEPA and ULPA) - Part 1: Classification, performance testing, marking23.120QDSUDYHVentilators. Fans. Air-conditionersICS:Ta slovenski standard je istoveten z:EN 1822-1:2009SIST EN 1822-1:2010en,fr01-januar-2010SIST EN 1822-1:2010SLOVENSKI
STANDARDSIST EN 1822-1:20001DGRPHãþD
SIST EN 1822-1:2010
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE 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, performance testing, marking
Filtres à air à haute efficacité (EPA, HEPA et ULPA) - Partie 1: Classification, essais de performance et marquage
Schwebstofffilter (EPA, HEPA und ULPA) - Teil 1: Klassifikation, Leistungsprüfung, Kennzeichnung This European Standard was approved by CEN on 17 October 2009.
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 bibliographical references concerning such national standards may be obtained on application to 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 same 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1822-1:2009: ESIST EN 1822-1:2010
EN 1822-1:2009 (E) 2 Contents
Page Foreword . 3Introduction . 41Scope . 52Normative references . 53Terms and definitions . 54Symbols and abbreviations . 55Classification . 65.1General . 65.2Groups of filters . 65.3Groups and Classes of filters . 66Requirements . 76.1General . 76.2Material . 76.3Nominal air volume flow rate . 76.4Pressure difference . 76.5Filtration performance . 77Test methods . 87.1Test rigs . 87.2Test conditions . 87.3Test aerosols . 97.4Survey of test procedures . 97.4.1General . 97.4.2Step 1: Testing sheet filter medium . 97.4.3Step 2: Leak test of the filter element. 97.4.4Step 3: Efficiency test of the filter element . 97.4.5Remarks . 97.5Test procedures . 107.5.1Testing sheet filter media . 107.5.2Leak test of the filter element . 137.5.3Efficiency test of the filter element . 178Assessment of the filter, documentation, test reports . 199Marking . 19Bibliography . 20SIST EN 1822-1:2010
EN 1822-1:2009 (E) 3 Foreword 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 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 patent 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 penetration 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 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 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 media; 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 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 the United Kingdom. SIST EN 1822-1:2010
EN 1822-1:2009 (E) 4 Introduction 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 lies 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 µm to 0,25 µm. For Membrane filter media, 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. SIST EN 1822-1:2010
EN 1822-1:2009 (E) 5 1 Scope This European Standard applies 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 of 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 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 1822-2:2009, High efficiency air filters (EPA, HEPA and ULPA) — Part 2: Aerosol production, 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, High 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 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 filter 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 document, the following symbols and abbreviations apply: SIST EN 1822-1:2010
EN 1822-1:2009 (E) 6 dp Particle diameter E Efficiency P Penetration p Pressure RH Relative humidity T Temperature σg Geometric standard deviation CNC Condensation nucleus counter DEHS Sebacic acid-bis (2 ethyl hexyl-) ester (trivial 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 minimum) 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 into 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 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; SIST EN 1822-1:2010
EN 1822-1:2009 (E) 7
Class E 11;
Class E 12. Group H filters are subdivided in two Classes:
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 the 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 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 during 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 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 particles. SIST EN 1822-1:2010
EN 1822-1:2009 (E) 8 After 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 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 b Filter Class Efficiency (%) Penetration (%) Efficiency (%) Penetration (%) E 10 ≥ 85 ≤ 15 ---c ---c E 11 ≥ 95 ≤ 5 ---c ---c E 12 ≥ 99,5 ≤ 0,5 ---c ---c H 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 a See 7.5.2 and EN 1822-4. b Local penetration values lower than those given in the table may be agreed between supplier and purchaser. c Group 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 methods of measurement and the measuring instruments are described in EN 1822-2. 7.2 Test conditions The air in the test channel used for testing shall comply with the following requirements: Temperature: (23 ± 5) °C; Relative humidity < 75 %. The temperature shall remain constant during the entire test procedure within ± 2 °C the relative humidity within ± 5 %. The cleanliness of the test air shall be ensured by appropriate pre-filtering, so that in operation without addition of aerosol the particle number concentration measured with the particle counting method is less than 350 000 m-3. The test specimen shall have the same temperature as the test air. SIST EN 1822-1:2010
EN 1822-1:2009 (E) 9 7.3 Test aerosols For the testing of EPA, HEPA and ULPA filters in accordance with this standard, a liquid test aerosol shall be used. Alternatively a solid aerosol may be used for leak testing (see EN 1822-4:2009, Annex D). Possible aerosol substances include but are not limited to DEHS, PAO and PSL. For further details, see EN 1822-2:2009, 4.2. NOTE The use of alternative materials for challenge aerosols may also be agreed between supplier and purchaser when the materials specified in this standard are unacceptable. The concen
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