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