Portable fire extinguishers. Additional requirements to EN 3-7 for the construction, resistance to pressure and mechanical tests for extinguishers with a maximum allowable pressure equal to or lower than 30 bar
Contents
- Foreword
- Scope
- Normative references
- Terms and definitions
- Symbols and abbreviations
- Materials
- Materials for bodies
- Materials for the bodies of operating devices and filling caps
- Materials for other components
- Experimental design method and prototype testing
- General
- Experimental Design
- Prototype testing
- Overfill pressure test (for water based media cartridge operated extinguishers only)
- Resistance to impact
- Manufacturing
- General requirements
- Welded and brazed parts
- Traceability
- Inspection and testing during production
- Final examination
- Burst test
- Marking
- General
- Body
- Extinguisher
- Annex A (informative) Classification of the different parts of an extinguisher subject to internal
- pressure
- Annex B (normative) Pressures
- Annex C (normative) Impact test
- C.1 Resistance to impact by falling weight
- Annex D (normative) Specification for plastics components (except hoses, pistols and nozzles)
- D.1 General
- D.2 Requirements for plastics components subject to pressure
- Annex E (normative) Propellant gas cartridges volume less than 0,12 l
- E.1 Refillable cartridge
- E.2 Non-refillable cartridges
- E.3 Marking
- Annex F (informative) Propellant gas cartridges volume equal to or greater than 0,12 l but less than 0,5
- F.1 Construction
- F.2 Pressure test
- F.3 Marking
- Annex G (normative) Overfill pressure test
- Annex ZA (informative) Relationship between this European Standard and the Essential Requirements
- of EU Directive 97/23/EC
- Figure 1 — Crushing test for long bodies
- Figure 2 — Crushing test for short bodies
- Table 1 — Number of bodies to be sampled
- Table 2 — Batch sampling plan following failure
- Table A.1 — Classification
- Figure B.1 — Scheme of pressure
- Table D.1 — Drop height for hammer test
- Figure D.1 — Example of thread profile
- Table ZA.1 — Correspondence between this European Standard and Directive 97/23/EC
استاندارد BS EN 3-8:2006
