ONORM EN 14373 : 2006

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Explosion suppression
   4.1 General
   4.2 Influencing factors
        4.2.1 General
        4.2.2 The explosion hazard
        4.2.3 The explosion suppressant
        4.2.4 The suppression system
        4.2.5 Interrelation
5 General requirements for explosion suppression components
   5.1 Detection
        5.1.1 General
        5.1.2 Optical detection
        5.1.3 Pressure detection
   5.2 Suppressant
   5.3 HRD-suppressors
   5.4 Control and Indicating Equipment, CIE
6 Requirements for the design of an explosion suppression
   system
   6.1 General
   6.2 Hazard definition
   6.3 Determination of the P[red, max] as a function of relevant
        influencing parameters
        6.3.1 General
        6.3.2 Validation by testing in one volume
        6.3.3 Validation by testing in a second volume
        6.3.4 Elongated enclosure
        6.3.5 Pipes
        6.3.6 Occupied spaces
   6.4 Validation of system design guidelines
        6.4.1 General
        6.4.2 Design nomograph
        6.4.3 Mathematical model for design
   6.5 Special applications
        6.5.1 Suppression combined with venting
        6.5.2 Venting combined with suppression
        6.5.3 Suppression combined with reduced oxygen concentrations
        6.5.4 Partial volumes
        6.5.5 Segregated volumes
        6.5.6 Obstructed volumes
   6.6 Test report
7 Safety integrity of explosion suppression systems
   7.1 General
   7.2 Measures to avoid and control systematic faults
   7.3 Control of electric connections
   7.4 Indicators and messages CIE
   7.5 Energy supply
8 Instructions for installation, commissioning and maintenance
   8.1 General
   8.2 Installation of cables
   8.3 Assembling
        8.3.1 General
        8.3.2 Assembly
   8.4 Commissioning
        8.4.1 General
        8.4.2 Commissioning phase
        8.4.3 Instruction
        8.4.4 Commissioning report
        8.4.5 Safety
   8.5 Maintenance
        8.5.1 General
        8.5.2 Servicing
9 Marking and packaging
   9.1 General
   9.2 Explosion suppression system components
   9.3 Explosion suppression system
   9.4 Omission of markings
Annex A (informative) Development of nomograph type design
        guidelines
   A.1 General
   A.2 Design nomograph
Annex ZA (informative) Relationship between this European Standard
         and the Essential Requirements of EU Directive 94/9/EC
         of 23 March 1994
Bibliography

Explains the basic requirements for the design and application of explosion suppression systems. It also specifies a method for evaluating the effectiveness and the scale up of explosion suppression systems against defined explosions.