Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Explosion isolation systems
  4.1 General
  4.2 Isolation types
      4.2.1 Passive isolation type
      4.2.2 Active isolation type
5 Requirements of explosion isolation components
  5.1 General
  5.2 Detection devices
      5.2.1 General
      5.2.2 Optical detection
      5.2.3 Pressure detection
      5.2.4 Other actuation
  5.3 Indicating equipment (IE) and control and
      indicating equipment (CIE)
      5.3.1 General
      5.3.2 Indicating equipment
      5.3.3 Control and indicating equipment
  5.4 Safety integrity of control and indicating
      equipment (CIE)
      5.4.1 General
      5.4.2 Measures to avoid and control
            systematic faults
      5.4.3 Control of electric connections
      5.4.4 Indicators and messages on CIE
      5.4.5 Energy supply
  5.5 Explosion isolation devices
      5.5.1 General
      5.5.2 Explosion protection valve (active
            or passive) - F&P
      5.5.3 Extinguishing barrier (active) - F
      5.5.4 Rotary valve (passive) - F
      5.5.5 Explosion proof interlocked double
            valve arrangement (passive) - F&P
      5.5.6 Diverters, explosion isolation flaps and
            flame arresters
6 System design
  6.1 General
  6.2 Combination of explosion isolation systems
      with other explosion protection techniques
      6.2.1 Explosion resistant design for the
            maximum explosion pressure -
            isolation
      6.2.2 Venting - isolation
      6.2.3 Suppression - isolation
7 Experimental testing of the efficacy of an explosion
  isolation system
  7.1 General
  7.2 Test Modules
      7.2.1 General
      7.2.2 Module A: Explosion resistance
            testing
      7.2.3 Module B: Flameproof testing
      7.2.4 Module C: Functional testing
  7.3 Testing Report
8 Information for use
9 Marking
  9.1 Marking of the explosion isolation
      system
  9.2 Marking of components of an explosion
      isolation system
Annex A (informative) - Verification of design methods
      A.1 General
      A.2 Design on the basis of an interpretation of
          test results
      A.3 Mathematical model
Annex ZA (informative) - Relationship between this European
         Standard and the Essential Requirements of EU
         Directive 94/9/EC
Bibliography