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PORTABLE FIRE EXTINGUISHERS - PART 9: ADDITIONAL REQUIREMENTS T0 EN 3-7 FOR PRESSURE RESISTANCE OF CO[2] EXTINGUISHERS
Amendment of: EN 3-9:2006
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Published date: 17-10-2007
Publisher: Comite Europeen de Normalisation
Foreword1 Scope2 Normative references3 Terms and definitions4 Materials 4.1 General 4.2 Material compatibility5 Design 5.1 Cylinder and operating devices 5.2 Filling ratio 5.3 Operating device 5.4 Bursting disc 5.5 Hose and nozzle couplings - Prototype testing 5.6 Resistance to impact6 Manufacturing of the assembled extinguisher7 Final assessment of the assembled extinguisher 7.1 General 7.2 Validation of accessories 7.3 Validation of the design maximum filling mass8 Marking 8.1 Operating device 8.2 Cylinder 8.3 Extinguisher assemblyAnnex A (informative) Classification of the different parts of an extinguisherAnnex B (informative) Filling ratio for CO[2]Annex C (normative) Portable CO[2] fire extinguisher thread sizesAnnex D (normative) Impact tests D.1 General D.2 Test at TS[min] D.3 Test at TS[max] D.4 Apparatus D.5 ProcedureAnnex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC
Describes the rules of design, assembling, inspection and testing of CO[2] portable fire extinguishers as far as the pressure risk is concerned.
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