SIST EN 3-9:2007
(Main)Portable fire extinguishers - Part 9: Additional requirements to EN 3-7 for pressure resistance of CO2 extinguishers
Portable fire extinguishers - Part 9: Additional requirements to EN 3-7 for pressure resistance of CO2 extinguishers
This European Standard specifies the rules of design, assembling, inspection and testing of CO2 portable fire extinguishers as far as the pressure risk is concerned.
NOTE Annex A gives the classification of the different parts forming the assembly of the portable extinguisher.
Tragbare Feuerlöscher - Teil 9: Zusätzliche Anforderungen zu EN 3-7 an die Druckfestigkeit von Kohlendioxid-Feuerlöscher
Diese Europäische Norm legt die Regeln zur Bemessung, zum Zusammenbau, zur Inspektionskontrolle und
Prüfung tragbarer Kohlendioxid-Feuerlöscher fest, soweit die Gefährdung durch Druck betrachtet wird.
ANMERKUNG Anhang A enthält die Klassifizierung der unterschiedlichen Teile, die den tragbaren Feuerlöscher bilden.
Extincteurs d'incendie portatifs - Partie 9 : Exigences additionnelles a l'EN 3-7 relatives a la résistance a la pression des extincteurs au dioxyde de carbone
La présente Norme européenne spécifie les règles de conception, de fabrication, d’inspection et d’essai des
extincteurs d’incendie portatifs au CO 2 en ce qui concerne les risques liés à la pression.
NOTE L'Annexe A donne la classification des différentes parties constitutives d'un extincteur d’incendie portatif.
Prenosni gasilniki - 9. del: Dodatne zahteve k EN 3-7 za odpornost proti tlaku za gasilnike s CO2
General Information
Relations
Overview
EN 3-9:2006 (CEN) defines additional requirements to EN 3-7 specifically for the pressure resistance of portable CO2 fire extinguishers. The standard covers design, assembly, inspection and testing aspects related to pressure risk, including component classification, required markings and validation procedures. It is intended to ensure safe operation of CO2 extinguishers under expected temperature and pressure conditions and to support conformity with EU Pressure Equipment Directive 97/23/EC.
Key Topics
- Scope and classification
- Focused on pressure-related requirements for portable CO2 extinguishers; Annex A classifies parts (cylinder, operating device, hose, nozzle, bursting disc).
- Materials and compatibility
- Non‑metallic materials for operating device bodies are not permitted; materials in contact with contents must be compatible with CO2 and with other components.
- Design requirements
- Cylinder and operating device thread codes and dimensional requirements (see Annex C); parallel threads must provide automatic venting before complete disengagement.
- Bursting discs required and must comply with ISO 6718, operating between 1.1×PS and the test pressure PT at (Tmax ± 2) °C.
- Filling ratio and pressure-temperature correlation
- Common filling ratios: 0.667, 0.675, 0.750 kg/L with corresponding maximum allowable pressures at 60 °C listed in Annex B.
- Prototype and component testing
- Hose/nozzle couplings: burst tests at defined multipliers of pressure developed at Tmax (e.g., 1.5× at 20 ±5 °C for one specimen; 1.25× at Tmax ±5 °C for two specimens).
- Burst-pressure test procedure: ramp to minimum burst pressure in ≥30 s, hold 30 s, then increase up to failure at ≤10 bar/s average.
- Impact tests referenced in Annex D using manufacturer’s claimed Tmin/Tmax; extinguishers must not burst or eject components.
- Validation, manufacturing and marking
- Manufacturing controls: thread compatibility checks, declared assembly torque, material traceability.
- Validation: fittings in Category II+ require pressure test at PT ≥ 1.43×PS for ≥30 s.
- Permanent markings: manufacturer ID, serial/batch, year, tare, volume, PS, maximum filling mass, contained gas, Tmin/Tmax, thread codes and PT where applicable.
Applications / Who uses it
- CO2 extinguisher manufacturers - design, production, quality control and marking.
- Test laboratories and conformity assessors - type and component testing to demonstrate compliance.
- Regulatory bodies and certifiers - enforcement and certification under Pressure Equipment Directive.
- Procurement and safety engineers - specification and selection of compliant CO2 portable extinguishers for industrial, commercial and transport use.
Related Standards
- EN 3-7:2004 (characteristics, performance and tests)
- EN 3-8:2006 (construction and pressure tests ≤30 bar)
- ISO 6718 (bursting discs)
- EN 629-1, EN ISO 11116-1, EN ISO 15245-1 (thread specifications)
- EU Directive 97/23/EC (Pressure Equipment Directive)
Keywords: EN 3-9:2006, CO2 portable fire extinguishers, pressure resistance, bursting disc, filling ratio, extinguisher testing, CEN standard, Pressure Equipment Directive.
Frequently Asked Questions
SIST EN 3-9:2007 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Portable fire extinguishers - Part 9: Additional requirements to EN 3-7 for pressure resistance of CO2 extinguishers". This standard covers: This European Standard specifies the rules of design, assembling, inspection and testing of CO2 portable fire extinguishers as far as the pressure risk is concerned. NOTE Annex A gives the classification of the different parts forming the assembly of the portable extinguisher.
This European Standard specifies the rules of design, assembling, inspection and testing of CO2 portable fire extinguishers as far as the pressure risk is concerned. NOTE Annex A gives the classification of the different parts forming the assembly of the portable extinguisher.
SIST EN 3-9:2007 is classified under the following ICS (International Classification for Standards) categories: 13.220.10 - Fire-fighting. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 3-9:2007 has the following relationships with other standards: It is inter standard links to SIST EN 3-9:2007/AC:2008. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 3-9:2007 is associated with the following European legislation: EU Directives/Regulations: 2005-01-2964, 97/23/EC; Standardization Mandates: M/071. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Portable fire extinguishers - Part 9: Additional requirements to EN 3-7 for pressure resistance of CO2 extinguishersPrenosni gasilniki - 9. del: Dodatne zahteve k EN 3-7 za odpornost proti tlaku za gasilnike s CO2Extincteurs d'incendie portatifs - Partie 9 : Exigences additionnelles a l'EN 3-7 relatives a la résistance a la pression des extincteurs au dioxyde de carboneTragbare Feuerlöscher - Teil 9: Zusätzliche Anforderungen zu EN 3-7 an die Druckfestigkeit von Kohlendioxid-FeuerlöscherTa slovenski standard je istoveten z:EN 3-9:2006SIST EN 3-9:2007en13.220.10Gašenje požaraFire-fightingICS:SLOVENSKI
STANDARDSIST EN 3-9:200701-marec-2007
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 3-9December 2006ICS 13.220.10 English VersionPortable fire extinguishers - Part 9: Additional requirements toEN 3-7 for pressure resistance of CO2 extinguishersExtincteurs d'incendie portatifs - Partie 9 : Exigencesadditionnelles à l'EN 3-7 relatives à la résistance à lapression des extincteurs au dioxyde de carboneTragbare Feuerlöscher - Teil 9: Zusätzliche Anforderungenzu EN 3-7 an die Druckfestigkeit von Kohlendioxid-FeuerlöscherThis European Standard was approved by CEN on 25 October 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 3-9:2006: E
Classification of the different parts of an extinguisher.8 Annex B (informative)
Filling ratio for CO2.9 Annex C (normative)
Portable CO2 fire extinguisher thread sizes.10 Annex D (normative)
Impact tests.11 D.1 General.11 D.2 Test at TSmin.11 D.3 Test at TSmax.11 D.4 Apparatus.12 D.5 Procedure.12 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC.13
Table A.1 — Classification of the different parts of portable fire extinguisher.8 Table B.1 — Filling ratio for CO2.9 Table C.1 — Cylinder neck thread dimensions.10 Table ZA.1 — Correspondence between this European Standard and Directive 97/23/EC.13
1) Withdrawn and replaced by EN 3-7. 2) EN 3-8 and 3-9 update and amend EN 3-3. On publication of these EN 3-3 will be withdrawn. 3) In preparation. EN 3-10 updates and amends EN 3-6. On publication of EN 3-10 EN 3-6 will be withdrawn.
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