NS EN 12094-4 : 1ED 2004

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
  4.1 Compliance
  4.2 General design
  4.3 Connection threads
  4.4 Function and ambient temperature
  4.5 Resistance to internal pressure
  4.6 Strength
  4.7 Leakage
  4.8 Operational reliability
  4.9 Flow characteristics
  4.10 Corrosion
  4.11 Stress corrosion
  4.12 Vibration resistance
  4.13 Diptube
  4.14 Operating force
  4.15 Functional reliability
  4.16 Manual powered actuators
  4.17 Documentation
5 Test methods
  5.1 Test conditions
  5.2 Test samples and order of tests
  5.3 Compliance
  5.4 Function
  5.5 Internal pressure
  5.6 Strength
  5.7 Leakage test for valves
  5.8 Operational reliability
  5.9 Temperature
  5.10 Flow characteristics
  5.11 Corrosion
  5.12 Stress corrosion
  5.13 Vibration
  5.14 Diptube
  5.15 Operating force and functional reliability
6 Marking and data
  6.1 General
  6.2 Valve assemblies
7 Evaluation of conformity
  7.1 General
  7.2 Initial type testing
  7.3 Factory production control (FPC)
Annex ZA (informative) Clauses of this European Standard addressing
         essential requirements or other provisions of EU Directives
Bibliography

Describes requirements and test methods for container valve assemblies for carbon dioxide-high pressure-, Inert Gas- or Halocarbon Gas-fire extinguishing systems, which include a container valve, an actuator and possibly a diptube.