SIST EN 17242:2026
(Main)Recirculatory Filtration Fume Cabinets
Recirculatory Filtration Fume Cabinets
This document is applicable to recirculatory filtration fume cabinets (RFFC).
Recirculatory filtration fume cabinets are devices intended to protect their users by means of:
— the ability to contain hazardous concentrations or quantities of airborne contaminants;
— the ability to remove hazardous concentrations or quantities of airborne contaminants from air exhausted from inside the fume cabinet by means of filtration before the air is recirculated to the room in which the fume cabinet is located.
This document specifies design and manufacturing requirements together with type and on-site testing procedures.
This document does not specify requirements for the use of a mixture of chemicals but provides guidance on how to proceed.
NOTE For special applications and usage such as Carcinogenic, Mutagenic, Reprotoxic Substances (CMR) substances, local regulation can apply. These local regulations can result on restriction of usage.
This document is not intended to address fume cupboards, or devices used as animal accommodation. For fume cupboards, the EN 14175 series applies. For microbiological safety cabinets, EN 12469 applies.
Umluft-Filter-Einhausungen
Dieses Dokument ist anwendbar für Umluft-Filter-Einhausungen (en: recirculatory filtration fume cabinets; RFFCs).
Umluft-Filter-Einhausungen sind Vorrichtungen, die dazu gedacht sind, ihre Anwender zu schützen durch:
die Fähigkeit, gefährliche Konzentrationen oder Mengen von Luftschadstoffen zurückzuhalten;
die Fähigkeit, gefährliche Konzentrationen oder Mengen von Luftschadstoffen aus der aus dem Abzugsinneren abgegebenen Luft durch Filtration zu entfernen, bevor die Luft umgewälzt wird (in den Raum, in welchem die Umluft-Filter-Einhausung steht).
Dieses Dokument legt Anforderungen an die Konstruktion und die Herstellung mitsamt Baumusterprüfverfahren fest.
Dieses Dokument legt keine Anforderungen für die Verwendung eines Chemikaliengemisches fest, sondern gibt Leitlinien für die Vorgehensweise vor.
ANMERKUNG Für spezielle Anwendungen und Verwendungszwecke wie im Fall von karzinogenen, mutagenen und reproduktionstoxischen Stoffen (CMR Stoffe) können örtliche Vorschriften gelten. Diese örtlichen Vorschriften können zu Einschränkungen der Anwendung führen.
Dieses Dokument befasst sich nicht mit Abzügen oder Vorrichtungen, die zur Unterbringung von Versuchstieren verwendet werden. Für Abzüge ist die Normenreihe EN 14175 anwendbar. Für mikrobiologische Sicherheitswerkbänke ist EN 12469 anwendbar.
Enceinte ventilée à recirculation d'air filtréEnceinte ventilée à recirculation d'air filtré
Le présent document est applicable aux enceintes ventilées à recirculation d’air filtré (EVRAF).
Les enceintes ventilées à recirculation sont des dispositifs destinés à protéger les utilisateurs grâce à :
— leur capacité à contenir des concentrations ou des quantités dangereuses de polluants aériens ;
— leur capacité à éliminer les concentrations ou les quantités dangereuses de polluants aériens de l'air extrait de l'intérieur de l'enceinte ventilée à recirculation par filtration, avant qu'il ne recircule (dans la pièce où se trouve l'enceinte ventilée à recirculation d'air filtré).
Le présent document spécifie des exigences de conception et de fabrication, en association avec des procédures d’essais de type.
Le présent document ne spécifie pas d’exigences pour l’utilisation d’un mélange de produits chimiques, mais fournit des recommandations sur la façon de procéder.
NOTE Pour des applications et usages spéciaux comme des substances cancérogènes, mutagènes et reprotoxiques (CMR), des réglementations locales peuvent s’appliquer. Ces réglementations locales peuvent entraîner des restrictions d’utilisation.
Le présent document ne vise pas à aborder les sorbonnes, ou dispositifs utilisés comme logement pour animaux. Pour les sorbonnes, la série EN 14175 s’applique. Pour les postes de sécurité micro-biologiques, l'EN 12469 s'applique.
Omare za recirkulacijsko filtriranje dima
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2026
Omare za recirkulacijsko filtriranje dima
Recirculatory Filtration Fume Cabinets
Umluft-Filter-Einhausungen
Enceinte ventilée à recirculation d'air filtréEnceinte ventilée à recirculation d'air filtré
Ta slovenski standard je istoveten z: EN 17242:2025
ICS:
71.040.10 Kemijski laboratoriji. Chemical laboratories.
Laboratorijska oprema Laboratory equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 17242
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2025
EUROPÄISCHE NORM
ICS 71.040.10
English Version
Recirculatory Filtration Fume Cabinets
Enceinte ventilée à recirculation d'air filtré Umluft-Filter-Einhausungen
This European Standard was approved by CEN on 22 September 2025.
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-CENELEC 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-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17242:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Classification of RFFC . 7
5 Requirements of RFFC . 7
5.1 General requirements . 7
5.2 Sound pressure level type test . 8
5.3 Gas and vapour filtration . 8
5.4 High efficiency particulate filtration . 9
5.5 Filter monitoring arrangements . 9
5.5.1 RFFCs without continuous filter monitoring . 9
5.5.2 RFFCs with continuous filter monitoring . 9
6 Face velocity measurements . 10
7 Performance tests of filtration of a RFFC . 10
7.1 Test rooms and test conditions for filtration and containment test . 10
7.2 Filtration of gases and vapours . 10
7.2.1 General. 10
7.2.2 Analysers and detectors . 11
7.2.3 Test procedure . 11
7.2.4 Gas and vapour filtration test report . 16
7.3 Test of gas and vapour sensors . 17
7.4 Filtration for particulates . 17
8 Containment test with IPA . 18
8.1 General. 18
8.2 Tracer vapour . 18
8.3 Containers . 18
8.4 Connecting tubing . 18
8.5 Gas analyser . 18
8.6 Time constant of the test system . 18
8.7 Sampling probe . 19
8.8 Sampling manifold . 19
8.9 Data recording . 19
8.10 Test condition . 19
8.10.1 General. 19
8.10.2 Positioning the containers to evaporate tracer vapour . 19
8.11 Sampling probe grid . 19
8.11.1 General. 19
8.11.2 Downstream sampling probe grid . 19
8.11.3 Outer measurement plane sampling probe grid . 21
8.12 Test procedure . 22
8.13 Data analysis and results . 22
9 Test according to EN 14175-3 . 23
10 On site testing of RFFC’s . 24
10.1 General . 24
10.2 Test report for commissioning of type tested RFFCs . 24
10.3 Test report for routine testing of type tested RFFCs. 25
11 Marking . 25
12 Product manual . 26
Annex A (normative) Filtration test protocol for inorganic acid filters . 28
Annex B (informative) Information on national and European regulations and guidelines that
may impact the usage of RFFCs . 29
Bibliography . 31
European foreword
This document (EN 17242:2025) has been prepared by Technical Committee CEN/TC 332 “Laboratory
equipment”, 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 2026, and conflicting national standards shall be
withdrawn at the latest by May 2026.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
1 Scope
This document is applicable to recirculatory filtration fume cabinets (RFFC).
Recirculatory filtration fume cabinets are devices intended to protect their users by means of:
— the ability to contain hazardous concentrations or quantities of airborne contaminants;
— the ability to remove hazardous concentrations or quantities of airborne contaminants from air
exhausted from inside the fume cabinet by means of filtration before the air is recirculated to the
room in which the fume cabinet is located.
This document specifies design and manufacturing requirements together with type and on-site testing
procedures.
This document does not specify requirements for the use of a mixture of chemicals but provides guidance
on how to proceed.
NOTE For special applications and usage such as Carcinogenic, Mutagenic, Reprotoxic Substances (CMR)
substances, local regulation can apply. These local regulations can result on restriction of usage.
This document is not intended to address fume cupboards, or devices used as animal accommodation.
For fume cupboards, the EN 14175 series applies. For microbiological safety cabinets, EN 12469 applies.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 1822-1, High efficiency air filters (EPA, HEPA and ULPA) — Part 1: Classification, performance testing,
marking
EN 14175-1, Fume cupboards — Part 1: Vocabulary
EN 14175-2:2003, Fume cupboards — Part 2: Safety and performance requirements
EN 14175-3:2019, Fume cupboards — Part 3: Type test methods
EN 14175-4:2004, Fume cupboards — Part 4: On-site test methods
CEN/TS 14175-5:2006, Fume cupboards — Part 5: Recommendations for installation and maintenance
EN 61010-1, Safety requirements for electrical equipment for measurement, control, and laboratory use —
Part 1: General requirements
EN 61672-1, Electroacoustics — Sound level meters — Part 1: Specifications
EN ISO 14644-3:2019, Cleanrooms and associated controlled environments — Part 3: Test methods (ISO
14644-3:2019, Corrected version 2020-06)
EN ISO 3744, Acoustics — Determination of sound power levels and sound energy levels of noise sources
using sound pressure — Engineering methods for an essentially free field over a reflecting plane (ISO 3744)
3 Terms and definitions
For the purpose of this document, the terms and definitions given i
...
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