EN 1822-2:2009
(Main)High efficiency air filters (EPA, HEPA and ULPA) - Part 2: Aerosol production, measuring equipment, particle counting statistics
High efficiency air filters (EPA, HEPA and ULPA) - Part 2: Aerosol production, measuring equipment, particle counting statistics
This European Standard applies to efficient particulate air filters (EPA), high efficiency particulate air filters (HEPA) and ultra low penetration air filters (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.
This European Standard describes the measuring instruments and aerosol generators used in the course of this testing. With regard to particle counting it specifies the statistical basis for the evaluation of counts with only small numbers of counted events.
Schwebstofffilter (EPA, HEPA und ULPA) - Teil 2: Aerosolerzeugung, Messgeräte, Partikelzählstatistik
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.
Diese Europäische Norm beschreibt die im Rahmen dieser Prüfung verwendeten Messgeräte und
Aerosolgeneratoren. Darüber hinaus beschreibt sie für Partikelzählungen die statistischen Grundlagen zur
Auswertung von Zählergebnissen bei nur geringer Anzahl von Zählereignissen.
Filtres à air à haute efficacité (EPA, HEPA et ULPA) - Partie 2: Production d'aérosol, équipement de mesure et statistiques de comptage de particules
La présente Norme européenne s'applique aux filtres à air à haute efficacité (EPA), aux filtres à très haute efficacité et aux filtres à air à très faible pénétration (ULPA) utilisés dans le domaine de la ventilation et de l'air conditionné, ainsi que dans des procédés techniques, par exemple pour des application de technique en salle blanche ou dans 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 liquide (ou à particules solides) et permet une classification normalisée de ces filtres en fonction de leur efficacité, locale et globale.
La présente Norme européenne décrit les instruments de mesure et les générateurs d'aérosol utilisés au cours de ces essais. Pour ce qui est du comptage de particules, elle spécifie les bases statistiques de l'évaluation des comptages effectués sur un nombre limité d'événements.
Visoko učinkoviti zračni filtri (EPA, HEPA in ULPA) - 2. del: Proizvodnja aerosola, merilna oprema, statistika štetja delcev
Ta evropski standard velja za učinkovite zračne filtre drobnih delcev (EPA), visoko učinkovite zračne filtre drobnih delcev (HEPA) in zračne filtre z ultra nizko penetracijo (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 učinkovitosti. Ta evropski standard opisuje merilne instrumente in aerosolne razpršilce, ki se uporabljajo pri tem preskušanju. Kar se tiče štetja delcev, določa statistično osnovo za vrednotenje štetja pri le majhnem številu štetih dogodkov.
General Information
- Status
- Withdrawn
- Publication Date
- 17-Nov-2009
- Withdrawal Date
- 13-Apr-2025
- Technical Committee
- CEN/TC 195 - Air filters for general air cleaning
- Drafting Committee
- CEN/TC 195/WG 2 - HEPA and ULPA filters
- Current Stage
- 9960 - Withdrawal effective - Withdrawal
- Start Date
- 10-Oct-2018
- Completion Date
- 14-Apr-2025
Relations
- Effective Date
- 22-Dec-2008
- Effective Date
- 17-Oct-2018
Frequently Asked Questions
EN 1822-2:2009 is a standard published by the European Committee for Standardization (CEN). Its full title is "High efficiency air filters (EPA, HEPA and ULPA) - Part 2: Aerosol production, measuring equipment, particle counting statistics". This standard covers: This European Standard applies to efficient particulate air filters (EPA), high efficiency particulate air filters (HEPA) and ultra low penetration air filters (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. This European Standard describes the measuring instruments and aerosol generators used in the course of this testing. With regard to particle counting it specifies the statistical basis for the evaluation of counts with only small numbers of counted events.
This European Standard applies to efficient particulate air filters (EPA), high efficiency particulate air filters (HEPA) and ultra low penetration air filters (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. This European Standard describes the measuring instruments and aerosol generators used in the course of this testing. With regard to particle counting it specifies the statistical basis for the evaluation of counts with only small numbers of counted events.
EN 1822-2:2009 is classified under the following ICS (International Classification for Standards) categories: 13.040.40 - Stationary source emissions; 23.120 - Ventilators. Fans. Air-conditioners. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 1822-2:2009 has the following relationships with other standards: It is inter standard links to EN 1822-2:1998, EN ISO 29463-2:2018. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 1822-2:2009 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Schwebstofffilter (EPA, HEPA und ULPA) - Teil 2: Aerosolerzeugung, Meßgeräte, PartikelzählstatistikFiltres à air à haute efficacité (EPA, HEPA et ULPA) - Partie 2: Production d'aérosol, équipement de mesure et statistiques de comptage de particulesHigh efficiency air filters (EPA, HEPA and ULPA) - Part 2: Aerosol production, measuring equipment, particle counting statistics23.120QDSUDYHVentilators. Fans. Air-conditionersICS:Ta slovenski standard je istoveten z:EN 1822-2:2009SIST EN 1822-2:2010en,fr01-januar-2010SIST EN 1822-2:2010SLOVENSKI
STANDARDSIST EN 1822-2:20001DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1822-2
November 2009 ICS 13.040.40 Supersedes EN 1822-2:1998English Version
High efficiency air filters (EPA, HEPA and ULPA) - Part 2: Aerosol production, measuring equipment, particle counting statistics
Filtres à air à haute efficacité (EPA, HEPA et ULPA) - Partie 2: Production d'aérosol, équipement de mesure et statistiques de comptage de particules
Schwebstofffilter (EPA, HEPA und ULPA) - Teil 2: Aerosolerzeugung, Meßgeräte, Partikelzählstatistik 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 1822-2:2009: ESIST EN 1822-2:2010
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.
DEHS PAO a Paraffin oil (low visc.) Chemical designation Sebacic acid-bis(2-ethylhexyl) ester Poly-Alpha-Olephin (e.g. CAS b No. 68649-12-7) Mixture (e.g. CAS # 64742-46-7)Trivial name Diethylhexylsebacyte Polyalphaolefin Paraffinoil Density (kg/m3) 912 800 – 820 (820 c) 843 Melting point (K) 225 ~ 280 259 Boiling point (K) 529 650 – 780 (674 c)
Flash point (K) > 473 445 – 500 453 Vapour pressure at 293 K (µPa) 1,9 100 – 130
Dynamic viscosity (kg/m s) 0,022 to 0,024 0,003 1 – 0,004 at 373 K (0,013 at 313 K c) (Kinematic viscosity at 373 K: 3,8 – 4,1 mm2/s) 0,026 Index of refraction/ wavelength (nm) 1,450/650 1,452/600 1,453 5/550 1,454 5/500 1,458 5/450 1,475/400 (1,455 6 c)
a
US Patents 5,059,349 [3] and 5,059,352 [4] describe and restrict the use of PAO for filter testing. Material properties of PAO as per Japan JACA Standard No. 37-2001: “The guideline of substitute materials to DOP” [5], Japan JISZ Standard No. 8901-206 [6] and ISO Standard No. 14644-3 [7]. b
CAS #, Chemical Abstracts Service Registry Number, substances have been registered in Chemical Abstracts, issued by American Chemical Society [8]. c
Data for “Emery 3004” as a specific example of a PAO. Source: Crosby, David W., Concentration produced by a Laskin nozzle generator, a comparison of substitute materials and DOP, 21st DOE/NRC Nuclear Air Cleaning Conference [9].
4.3 Producing monodisperse aerosols 4.3.1 Condensation methods 4.3.1.1 General Condensation methods are preferred for the creation of monodisperse aerosols, i.e. the particles are formed by condensation from the vapour phase. It is necessary to distinguish between heterogeneous and homogeneous condensation. SIST EN 1822-2:2010
A simple nebuliser operated with nitrogen nebulises a weak aqueous solution of sodium chloride. After large water drops have been excluded in a drop eliminator, the smaller droplets are passed into a diffusion drier where they vaporise. The resultant sodium chloride aerosol is then passed into a vessel containing the actual aerosol substance, where it becomes saturated with the vapour of this substance. The aerosol vapour mixture is then passed through a re-heater, and then on through a condensation chimney, where the vapour condenses on the salt particles, forming a homogeneous droplet aerosol (see also [10]).
Key 1 Nitrogen supply 2 Nebuliser 3 Drop eliminator 4 Diffusion drier 5 Thermostatic oven 6 By-pass valve 7 Flow meter 8 Re-heater 9 Condensation chimney 10 Aerosol Figure 1 — Structure of the Sinclair-LaMer aerosol generator The vessel containing the aerosol substance is contained in a thermostatic oven, whose temperature can be adjusted so as to regulate the amount of vapour and the diameter of the particles. A part of the sodium SIST EN 1822-2:2010
The rates of particle production which can be achieved by means of this type of generator are in the order of 108 s-1; the particle diameter can be adjusted between approximately 0,1 µm and 4 µm. 4.3.1.2.3 Rapaport-Weinstock generator (Figure 2) An aerosol substance is nebulised through a nozzle, either as a pure substance or in solution, and the resultant polydisperse aerosol is then vaporised along the heated section of a glass tube. Residual nuclei of the impurities in the material remain.
Key 1 Liquid reservoir 2 Compressed air 3 Nebuliser 4 Vaporisation section 5 Thermostat 6 Condensation section 7 Aerosol Figure 2 — Structure of the Rapaport and Weinstock aerosol generator In the subsequent condensation section the aerosol substance then condenses on these nuclei to form a mondisperse aerosol (see also [11]). The particle diameter of this aerosol is determined by the mixing ratio of aerosol substance and solvent. The final aerosol contains the solvent used (e.g. Propanol) as a vapour. SIST EN 1822-2:2010
Key 1 DEHS tank 2 Pump 3 Flow controller 4 Nitrogen 5 Ultra-sonic nebuliser 6 Thermostat 7 Vaporisation pipe with heater and insulation 8 Sheath air 9 Nozzle 10 Sintered metal plate 11 Coagulation section 12 Aerosol Figure 3 — Set-up of a free-jet condensation aerosol generator SIST EN 1822-2:2010
It is comparatively simple to increase the particle production rate by using a number of jets in parallel. The maximum rate of particle production which can be achieved using one nozzle is 5 x 1010 s-1.
NOTE A typical jet nebuliser is described for example in [13]. 4.5 Neutralisation of aerosols
Since electrically charged particles are removed more effectively by filters than are uncharged particles, electrically neutral particles should be used for testing filters. A neutral state of charge is generally understood to be the stationary equilibrium achieved when charged aerosol particles are brought together with a sufficient number of positive and negative gas ions. This is usually carried out by ionising the carrier gas of the aerosol using a radioactive source or by corona discharge. The low level of residual charge in the aerosol after this neutralisation can be neglected for the filtration process. Aerosol particles become electrically charged when there is a division of charges in the course of production (e.g. nebulisation).
...
SIST EN 1822-2:2010은 고효율 공기 필터(EPA, HEPA 및 ULPA)의 성능 평가에 관한 중요한 유럽 표준으로, 공기 순환 및 에어컨 분야, 특히 클린룸 기술이나 제약 산업과 같은 기술적 프로세스에서 사용됩니다. 이 표준은 고체 또는 액체 테스트 에어로졸을 사용한 입자 수 측정 방법을 기반으로 한 필터 효율성 결정 절차를 수립하고 있습니다. 이 표준의 강점은 필터의 효율성을 지역적 및 전체적으로 구분하여 표준화 된 분류를 가능하게 한다는 점입니다. 고효율 공기 필터의 성능을 신뢰할 수 있는 방법으로 측정할 수 있게 해주는 체계적인 접근 방식을 제공하여, 사용자가 요구하는 고도의 청정 환경을 유지하는 데 필요한 근거 자료를 마련해줍니다. 또한, SIST EN 1822-2:2010은 테스트 과정에서 사용되는 측정 기기와 에어로졸 생성기들에 대해서도 명확히 규정하고 있습니다. 이는 테스트 결과의 재현성을 높이고, 입자 수 계산 시의 통계적 기준을 명시함으로써 소규모 사건에 대한 평가를 가능하게 합니다. 이러한 접근은 표준의 신뢰성과 적용 가능성을 더욱 강화합니다. 결론적으로, EN 1822-2:2009는 고효율 공기 필터에 대한 깊이 있는 이해를 돕고, 필터 성능 평가 및 산업 적용에 있어 중요한 기준으로 자리잡고 있습니다.
Die Norm EN 1822-2:2009 ist ein essenzielles Dokument, das sich auf hoch effiziente Luftfilter (EPA, HEPA und ULPA) konzentriert, die in Bereichen wie der Belüftung, Klimatisierung sowie in technischen Prozessen eingesetzt werden. Ihre Relevanz ist besonders evident in der sauberen Raumtechnologie und der pharmazeutischen Industrie, wo Luftqualität von höchster Bedeutung ist. Ein herausragendes Merkmal dieser Norm ist ihre umfassende Vorgehensweise zur Bestimmung der Effizienz dieser Filtertypen. Durch die Definition eines standardisierten Verfahrens zur Messung der Filterleistung auf der Grundlage der Partikelzählmethode wird eine einheitliche Klassifikation der Filter hinsichtlich ihrer Effizienz ermöglicht. Dabei wird sowohl die lokale als auch die integrale Effizienz berücksichtigt, was eine detaillierte Bewertung der Filterleistung erlaubt. Die Norm beschreibt außerdem die für die Tests verwendeten Messinstrumente und Aerosolgeneratoren, was zu einer hohen Reliabilität und Reproduzierbarkeit der Ergebnisse beiträgt. Zudem legt sie die statistischen Grundlagen für die Auswertung von Zählungen fest, insbesondere bei der Analyse von kleineren Ereigniszahlen. Dies stellt sicher, dass selbst kleine Stichproben angemessen bewertet werden können. Insgesamt bietet die EN 1822-2:2009 eine solide und umfassende Grundlage zur Beurteilung der Effizienz von hoch effektiven Luftfiltern und unterstreicht deren Bedeutung für kritische Anwendungen, wo saubere Luft unabdingbar ist. Die Struktur und der Inhalt dieser Norm stärken die Verlässlichkeit von Luftfiltern und tragen so zur Verbesserung der Luftqualität in verschiedenen industriellen und technischen Anwendungen bei.
EN 1822-2:2009は、高効率空気フィルター（EPA、HEPA、ULPA）に関するヨーロッパの標準であり、その適用範囲は通気および空調の分野における効率的な微粒子空気フィルターに特化しています。具体的には、クリーンルーム技術や製薬産業などの技術的プロセスでの使用が考慮されています。この標準は、液体または固体試験エアロゾルを用いた粒子数計測による効率の決定手順を確立しており、フィルターの効率を明確に分類することが可能です。地元効率および総合効率の両方を考慮した評価基準が設けられている点が強みです。 この標準では、試験に使用される計測器およびエアロゾル生成装置についても詳細に説明しています。粒子カウントに関しては、少数のイベントに基づくカウントの評価に関する統計的基盤が特定されており、これは計測の整合性と信頼性を高めるために不可欠なポイントです。EN 1822-2:2009は、空気フィルターの効率を測定および評価する際の重要な基準を提供するものであり、クリーンテクノロジーの発展に寄与する標準として、その関連性と重要性を強調することができます。
The EN 1822-2:2009 standard provides a comprehensive framework for assessing high efficiency air filters, namely EPA, HEPA, and ULPA, integral to applications in ventilation, air conditioning, and critical technical processes such as clean room technology and the pharmaceutical industry. This standard emphasizes the importance of efficiency measurement through a well-defined procedure that utilizes a particle counting method with both liquid and solid test aerosols, ensuring versatility in application. One of the principal strengths of the EN 1822-2:2009 standard is its systematic approach to filter classification, particularly regarding both local and integral efficiency metrics. This dual classification is crucial for stakeholders who require specific filter performance data to meet stringent industry regulations and operational requirements. The standard's detailed specifications for measuring instruments and aerosol generators further enhance its reliability and applicability, making it an essential reference for professionals engaged in filter testing. Moreover, the standard addresses the statistical evaluation of particle counts, which is vital for accuracy in environments where even minor contamination can have significant consequences. By providing a robust statistical framework, the EN 1822-2:2009 standard facilitates confidence in the results obtained from filter efficiency testing. In summary, the EN 1822-2:2009 standard is highly relevant within its field, offering clear guidance on the necessary procedures for filter efficiency assessment. Its thorough treatment of measurement techniques, coupled with a focus on statistical evaluation, underscores its value as an authoritative document in ensuring high standards of air quality control in sensitive environments.
La norme EN 1822-2:2009, intitulée "Filtres à air à haute efficacité (EPA, HEPA et ULPA) - Partie 2 : Production d'aérosols, équipements de mesure, statistiques de comptage de particules", se révèle d'une grande importance dans le domaine de la ventilation et de la climatisation. Son champ d'application inclut les filtres à particules efficaces (EPA), les filtres à particules à haute efficacité (HEPA) et les filtres à faible pénétration ultra (ULPA), notamment pour des processus techniques comme ceux utilisés en technologie des salles blanches ou dans l'industrie pharmaceutique. L'une des forces majeures de cette norme réside dans sa capacité à établir une procédure précise pour déterminer l'efficacité des filtres à air. En s'appuyant sur une méthode de comptage de particules utilisant un aérosol de test liquide ou solide, elle permet une classification normalisée des filtres en fonction de leur efficacité. Cela est crucial pour garantir des performances conformes aux exigences des environnements sensibles, tels que ceux rencontrés dans les laboratoires et les installations médicales. De plus, la norme met en avant des instruments de mesure et des générateurs d'aérosols spécifiques, assurant que les tests effectués pour évaluer l'efficacité des filtres soient réalisés de manière fiable et précise. Cela contribue à la robustesse des données recueillies, permettant ainsi une évaluation statistique appropriée, même avec un nombre d'événements comptés relativement faible. En somme, la norme EN 1822-2:2009 se positionne comme un outil indispensable pour les professionnels du secteur de la ventilation et de la purification de l'air, en offrant des lignes directrices claires et une méthodologie rigoureuse pour l’évaluation des filtres EPA, HEPA et ULPA. Sa pertinence dans le domaine de la technologie de l'air ne peut être sous-estimée, étant un levier essentiel pour garantir la qualité de l'air dans des environnements critiques.
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