SN EN 3-7 : 2004 + A1 2007
Current
The latest, up-to-date edition.
PORTABLE FIRE EXTINGUISHERS - PART 7: CHARACTERISTICS, PERFORMANCE REQUIREMENTS AND TEST METHODS
12-01-2013
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General
4.1 Description of a portable fire extinguisher
4.2 Control of discharge
4.3 Operating position
4.4 Hose assembly
4.5 Propellants
4.6 Stored pressure extinguishers
5 Testing of portable fire extinguishers
6 Nominal charges, filling tolerances and minimum fire performance
6.1 Nominal charges
6.2 Filling tolerances
6.3 Design of the filling opening
6.4 Minimum fire ratings
7 Duration of operation, residual charge and operating temperatures
7.1 Duration of operation
7.2 Residual charge
7.3 Commencement of discharge
7.4 Effective range of operating temperature
8 Retention of propellant
8.1 Verification
8.2 Acceptance levels
8.3 Production leak tests
9 Dielectric test for water based extinguishers
9.1 General
9.2 Required performance
10 Requirements for components
10.1 General
10.2 Operation and emission control mechanisms/devices
10.3 Safety devices
10.4 Filter for water based portable fire extinguishers
10.5 Hose and coupling systems
10.6 Control valve
11 Means of pressure indication
11.1 Pressure gauge
11.2 Pressure indicator
12 Horns for carbon dioxide portable fire extinguishers
13 Portable fire extinguisher mounting bracket
14 Resistance to corrosion
14.1 Resistance to external corrosion
14.2 Resistance to extinguishing medium of extinguishers using water
based media
15 Fire performance
15.1 General
15.2 Class A fire rating
15.3 Class B fire rating
16 Portable fire extinguisher identification
16.1 Colour
16.2 Marking
17 Maintenance
Annex A (normative) Duration of operation, residual charge tests
Annex B (normative) Range of operating temperature
Annex C (normative) Dielectric test
Annex D (normative) Operation and emission control mechanisms/devices
Annex E (normative) Test for performance of the hose
Annex F (normative) Control valve test
Annex G (normative) Tests on the horn
Annex H (normative) Resistance to corrosion
Annex I (normative) Fire tests
Annex J (normative) Measurement of moisture content of wood
Annex K (normative) Compaction procedure
Bibliography
Describes the characteristics, performance requirements and test methods for portable fire extinguishers.
| DevelopmentNote |
Supersedes SN EN 3-1, SN EN 3-2 and SN EN 3-5. (07/2004) Supersedes SN EN 3-4. (09/2004) 2004 Edition Re-issued in October 2007 & incorporates AMD 1 2007. (11/2007)
|
| DocumentType |
Standard
|
| PublisherName |
Swiss Standards
|
| Status |
Current
|
| Standards | Relationship |
| UNI EN 3-7 : 2008 | Identical |
| UNE-EN 3-7:2004 | Identical |
| BS EN 3-7 : 2004 | Identical |
| EN 3-7:2004+A1:2007 | Identical |
| I.S. EN 3-7:2004 | Identical |
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