SIST EN 1822-1:2019

• Abstract:

  This document 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.

• Status: Published
• Public Enquiry End Date: 06-Sep-2017
• Publication Date: 17-Apr-2019
• ICS: 23.120 - Ventilators. Fans. Air-conditioners
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 18-Apr-2019
• Due Date: 23-Jun-2019
• Completion Date: 18-Apr-2019
• Directive: 2017-01-2394 - Pravilnik o pogojih, ki jih mora izpolnjevati kadilnica
• Directive:

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  TRRTP084 - Pravilnik o pogojih, ki jih mora izpolnjevati kadilnica
• Directive:

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  TRRTP129 - Tehnična smernica TSG-12640-001:2008 Zdravstveni objekti
• Ref Project: EN 1822-1:2019 - High efficiency air filters (EPA, HEPA and ULPA) - Part 1: Classification, performance testing, marking

• Replaces: SIST EN 1822-1:2010 - High efficiency air filters (EPA, HEPA and ULPA) - Part 1: Classification, performance testing, marking
• Effective Date: 17-Apr-2019
• Refers: SIST ISO 2859-1:2003 - Sampling procedures for inspection by attributes -- Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
• Effective Date: 25-Aug-2026
• Refers: SIST EN ISO 29463-5:2018 - High-efficiency filters and filter media for removing particles in air - Part 5: Test method for filter elements (ISO 29463-5:2011)
• Effective Date: 28-Jan-2026
• Refers: SIST EN 196-1:1995 - Methods of testing cement - Part 1: Determination of strength
• Effective Date: 28-Jan-2026
• Refers: SIST EN ISO 29464:2024 - Cleaning of air and other gases - Vocabulary (ISO 29464:2024)
• Effective Date: 28-Jan-2026
• Refers: SIST EN ISO 29463-2:2018 - High-efficiency filters and filter media for removing particles in air - Part 2: Aerosol production, measuring equipment and particle-counting statistics (ISO 29463-2:2011)
• Effective Date: 28-Jan-2026
• Refers: SIST EN ISO 29463-3:2018 - High-efficiency filters and filter media for removing particles in air - Part 3: Testing flat sheet filter media (ISO 29463-3:2011)
• Effective Date: 28-Jan-2026
• Refers: SIST EN ISO 29463-4:2018 - High-efficiency filters and filter media for removing particles in air - Part 4: Test method for determining leakage of filter elements-Scan method (ISO 29463-4:2011)
• Effective Date: 28-Jan-2026
• Refers: SIST EN ISO 5167-1:2022 - 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 5167-1:2022)
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 17969:2026 - Earth-moving machinery - Safety - Contamination protective systems
• Effective Date: 17-Jun-2026
• Referred By: SIST EN 16798-3:2025 - Energy performance of buildings - Ventilation for buildings - Part 3: For non-residential buildings - Performance requirements for ventilation and room-conditioning systems (Modules M5-1, M5-4)
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 17242:2026 - Recirculatory Filtration Fume Cabinets
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 12599:2013 - Ventilation for buildings - Test procedures and measurement methods to hand over air conditioning and ventilation systems
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 12469:2000 - Biotechnology - Performance criteria for microbiological safety cabinets
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 285:2006+A2:2009 - Sterilization - Steam sterilizers - Large sterilizers
• Effective Date: 28-Jan-2026

Overview

EN 1822-1:2019 is the CEN European standard that defines classification, performance testing and marking for high efficiency air filters - EPA, HEPA and ULPA - used in ventilation, air conditioning and technical processes (for example cleanrooms and pharmaceutical production). The standard establishes a particle-counting test procedure (liquid aerosol, alternatively solid for leak checks) to determine filter efficiency at the most penetrating particle size (MPPS) and to assign filters to standardized classes (E10–E12, H13–H14, U15–U17).

Key topics and technical requirements

• Scope & classification
  • Covers EPA, HEPA and ULPA filter elements and assigns groups/classes by integral and (for H and U) local MPPS efficiency/penetration.
  • Classes: E10–E12, H13–H14, U15–U17.
• Measurement basis
  • Particle-counting methods using a liquid test aerosol (e.g., DEHS, PAO, PSL). Solid aerosols allowed for some leak tests.
  • Determination of MPPS from sheet-media efficiency vs particle size curves.
• Three-step test process
  1. Flat sheet filter media test to determine MPPS and baseline efficiency.
  2. Leak test of the filter element (mandatory for Groups H and U; Group E not leak-tested for classification).
  3. Efficiency test of the assembled filter element at the nominal air volume flow rate.
• Test conditions
  • Typical test air temperature (23 ± 5) °C and relative humidity < 75%, with tighter stability during tests.
  • Clean test air (background particle concentration control - e.g., < 352,000 particles/m³).
• Performance metrics
  • Integral efficiency/penetration at MPPS and, for H/U groups, local (scan) leakage limits.
  • Special handling for electrostatically charged media - classification based on discharged efficiency (per EN ISO 29463-5).
• Documentation & marking
  • Test reports, marking and traceability requirements for manufacturers and testing laboratories.

Practical applications

• Specifying and verifying filters for:
  • Cleanrooms (semiconductor, biotech, medtech)
  • Pharmaceutical manufacturing and aseptic processing
  • Hospital HVAC and isolation rooms
  • Critical industrial processes requiring particle control
• Used by: filter manufacturers, independent test laboratories, HVAC engineers, cleanroom qualification teams, procurement/specification authors and regulatory bodies.

Who should use this standard

• Manufacturers for product classification and marking
• Test laboratories for accredited performance testing
• Engineers and facility managers for selecting and validating filters in controlled environments

Related standards

• EN ISO 29463-2 / -3 / -4 / -5 (aerosol production, sheet media testing, scan leak method, filter element testing)
• EN 14799 (terminology)
• EN ISO 5167-1, ISO 2859-1 (measurement & sampling references)

EN 1822-1:2019 supersedes EN 1822-1:2009 and emphasizes particle-counting methods (it excludes the aerosol-photometer scan leak test), making it the reference for modern HEPA/ULPA performance classification and testing.

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 1822-1:2019SIST EN 1822-1:2019en,fr,de01-junij-2019SIST EN 1822-1:2019SLOVENSKI
STANDARDSIST EN 1822-1:20101DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1822-1
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s z t tæ sã t r r {English Version
Classificationá performance testingá marking Partie
s ã Classificationá essais de performance et marquage
Klassifikationá Leistungsprüfungá Kennzeichnung This European Standard was approved by CEN on
s v January
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egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
t r s { CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s z t tæ sã t r s { ESIST EN 1822-1:2019

Classification system for high efficiency air filters in ISO 29463-1 .19 Bibliography .20
— EN ISO 29463-4, High-efficiency filters and filter media for removing particles in air — Part 4: Test method for determining leakage of filter element — Scan method
— EN ISO 29463-5, High-efficiency filters and filter media for removing particles in air — Part 5: Test method for filter elements When reference is made to ISO 29463-1 in EN ISO 29463-2 to -5, at European level EN 1822-1 applies. This document is based on particle counting methods which actually cover most needs of different applications. The differences between this European Standard and its previous edition lie in: — the addition of references to the existing EN ISO 29463-2, EN ISO 29463-3, EN ISO 29463-4 and EN ISO 29463-5; — the exclusion of the use of an aerosol photometer filter scan leak test; — various editorial corrections implemented in this document. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 1822-1:2019

· 85
¶ 15 –-c –-c E11
· 95
¶ 5 –-c –-c E12
· 99,5
¶ 0,5 –-c –-c H13
· 99,95
¶ 0,05
· 99,75
¶ 0,25 H14
· 99,995
¶ 0,005
· 99,975
¶ 0,025 U15
· 99,999 5
¶ 0,000 5
· 99,997 5
¶ 0,002 5 U16
· 99,999 95
¶ 0,000 05
· 99,999 75
¶ 0,000 25 U17
· 99,999 995
¶ 0,000 005
· 99,999 9
¶ 0,000 1 a See 7.5.2 and EN ISO 29463-4. 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. NOTE ISO 29463-1:2017 developed by ISO/TC 142 includes a classification system for high efficiency air filters according to their filtration performance (efficiency or penetration) similar to EN 1822-1. Table A.1 gives a by-side comparison of the classification in EN 1822-1 and ISO 29463-1:2017. 7 Test methods 7.1 Test rigs The test rigs are described in detail in EN ISO 29463-3, EN ISO 29463-4 and EN ISO 29463-5. The individual methods of measurement and the measuring instruments are described in EN ISO 29463-2. 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 %. SIST EN 1822-1:2019
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