• NEN EN 3-7 : 2004 + A1 2007

    Current The latest, up-to-date edition.


    Available format(s): 


    Published date:  12-01-2013

    Publisher:  Netherlands Standards

    Sorry this product is not available in your region.

    Add To Cart

    Table of Contents - (Show below) - (Hide below)

    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

    Abstract - (Show below) - (Hide below)

    Describes the characteristics, performance requirements and test methods for portable fire extinguishers.

    General Product Information - (Show below) - (Hide below)

    Development Note Supersedes NEN EN 3-1, NEN EN 3-2, NEN EN 3-4 and NEN EN 3-5. (10/2003) 2004 Edition Re-Issued in August 2007 & incorporates AMD 1 2007. (09/2007)
    Document Type Standard
    Publisher Netherlands Standards
    Status Current
    • Access your standards online with a subscription


      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective