EN 3-8:2021

SLOVENSKI STANDARD
01-oktober-2021
Nadomešča:
SIST EN 3-8:2007
SIST EN 3-8:2007/AC:2008
Prenosni gasilniki - 8. del: Zahteve za konstrukcijo, odpornost proti tlaku in
mehanski preskusi za gasilnike z največjim dovoljenim tlakom, enakim ali nižjim
od 30 bar, ki ustrezajo zahtevam EN 3-7
Portable fire extinguishers - Part 8: Requirements for the construction, pressure
resistance and mechanical tests for extinguishers with a maximum allowable pressure
equal to or lower than 30 bar, which comply with the requirements of EN 3-7
Tragbare Feuerlöscher - Teil 8: Anforderungen an die konstruktive Ausführung,
Druckfestigkeit und mechanischen Prüfungen für tragbare Feuerlöscher mit einem
Höchstdruck kleiner gleich 30 bar, welche die Anforderungen aus EN 3-7 erfüllen
Extincteurs d’incendie portatifs - Partie 8 : Exigences pour la construction, la résistance à
la pression et les essais mécaniques pour extincteurs dont la pression maximale
admissible est inférieure ou égale à 30 bar et qui sont conformes aux exigences de l’EN
3-7
Ta slovenski standard je istoveten z: EN 3-8:2021
ICS:
13.220.10 Gašenje požara Fire-fighting
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 3-8
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2021
EUROPÄISCHE NORM
ICS 13.220.20 Supersedes EN 3-8:2006
English Version
Portable fire extinguishers - Part 8: Requirements for the
construction, pressure resistance and mechanical tests for
extinguishers with a maximum allowable pressure equal
to or lower than 30 bar, which comply with the
requirements of EN 3-7
Extincteurs d'incendie portatifs - Partie 8 : Exigences Tragbare Feuerlöscher - Teil 8: Anforderungen an die
pour la construction, la résistance à la pression et les konstruktive Ausführung, Druckfestigkeit und
essais mécaniques pour extincteurs dont la pression mechanischen Prüfungen für tragbare Feuerlöscher
maximale admissible est inférieure ou égale à 30 bar et mit einem Höchstdruck kleiner gleich 30 bar, welche
qui sont conformes aux exigences de l'EN 3-7 die Anforderungen aus EN 3-7 erfüllen
This European Standard was approved by CEN on 11 July 2021.

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, Turkey and
United Kingdom.
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COMITÉ EUROPÉEN DE NORMALISATION

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© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3-8:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 5
Introduction . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 Symbols and abbreviations . 10
5 Design . 10
5.1 Design parameters . 10
5.2 General. 11
5.3 Bodies . 11
5.3.1 General Test Conditions . 11
5.3.2 Burst test . 11
5.3.3 Crushing test – low temperature (extinguisher bodies only) . 12
5.3.4 Macroscopic examination of the extinguisher body . 12
5.3.5 Requirements for the base . 12
5.3.6 Required for use with plastic components . 13
5.4 Fittings (except pressure gauge, as defined in EN 3-7) . 13
5.4.1 Conditions . 13
5.4.2 Requirements . 13
5.5 Pressure gauge . 13
5.5.1 Conditions . 13
5.5.2 Requirements . 13
5.6 Pressure test (test pressure PT) – extinguisher bodies, fittings and assemblies . 14
5.6.1 Conditions . 14
5.6.2 Requirements – Extinguisher bodies . 14
5.6.3 Requirements – Fittings . 14
5.6.4 Requirements – Assembly . 14
5.7 Overfill pressure test (for water based media cartridge operated extinguishers
only) . 14
5.7.1 General. 14
5.7.2 Conditions . 14
5.7.3 Requirements . 14
5.8 Plastics components (subject to pressure) except hoses, and nozzles . 14
5.9 Resistance to impact . 14
5.9.1 Conditions . 14
5.9.2 Requirements . 14
5.10 Resistance to Corrosion . 15
5.10.1 External corrosion . 15
5.10.2 Resistance to media . 15
5.10.3 Material compatibility . 15
5.11 Filling opening . 15
5.12 Safety device . 15
6 Marking . 15
6.1 General. 15
6.2 Extinguisher body . 15
6.3 Extinguisher assembly . 15
7 Manufacturing, Inspection and testing during production . 16
7.1 General requirements . 16
7.2 Permanent joining . 16
7.2.1 Introduction . 16
7.2.2 Welding procedures . 16
7.2.3 Brazing procedures . 16
7.3 Traceability . 16
7.3.1 Pressure retaining parts . 16
7.3.2 Operating devices, filling caps and hose assemblies . 17
7.4 Pressure testing . 17
7.4.1 Personnel . 17
7.4.2 Proof testing . 17
7.5 Burst and crushing tests. 17
7.5.1 Extinguisher bodies . 17
7.5.2 Fittings – subject to pressure . 18
7.6 Final assessment . 19
7.6.1 Test pressure verification . 19
7.6.2 Final Inspection . 19
8 Materials . 19
8.1 General . 19
8.2 Pressure bearing parts . 20
8.3 Non-pressure bearing parts . 20
8.4 Plastic components . 20
8.5 Documentation . 20
9 Propellant gas cartridges . 20
Annex A (normative) Classification of the different parts of an extinguisher subject to internal
pressure . 21
Annex B (normative) Pressures and tempe
...