EN ISO 25457:2008
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Petroleum, petrochemical and natural gas industries - Flare details for general refinery and petrochemical service (ISO 25457:2008)
30-06-2009
15-12-2008
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Design
4.1 Introduction
4.2 System design
4.3 Process definition
4.4 Types of flares
4.5 Flare burners
4.6 Mechanical design
4.7 Pilots
4.8 Pilot-ignition systems
4.9 Pilot-flame detection
4.10 Piping
4.11 Auxiliary components
5 Mechanical details - Elevated flares
5.1 Mechanical design - Design loads
5.2 Design details
5.3 Materials of construction
5.4 Welding
5.5 Inspection
5.6 Surface preparation and protection
5.7 Attachments
5.8 Aircraft warning lighting
5.9 Platforms and ladders
6 Mechanical details - Enclosed-flame flare
6.1 Combustion chamber
6.2 Burners
6.3 Burner piping
6.4 Pilots
6.5 Wind fence
6.6 Radiation shielding
Annex A (informative) - Flare equipment overview
A.1 Types of flares and components
A.2 Flare burner
A.3 Pilots
A.4 Ignition equipment
A.5 Flame-detection equipment
A.6 Verification test
A.7 Purge-gas conservation seals
A.8 Knockout drums and liquid seals
A.9 Blowers and drivers
A.10 Blower staging and control equipment
A.11 Pressure-staging equipment
A.12 Flow and pressure sensing equipment
Annex B (informative) - Components of multi-burner
staged flare equipment
B.1 Burners
B.2 Pilots
B.3 Ignition equipment
B.4 Flame-detection equipment
B.5 Buoyancy and velocity seals
B.6 Manifolds
B.7 Operations
B.8 Maintenance
B.9 Troubleshooting
Annex C (informative) - Enclosed-flame flares
C.1 Purpose
C.2 General description
C.3 Operating considerations for
enclosed-flame flares
C.4 Maintenance
C.5 Troubleshooting
Annex D (informative) - Instructions for flare data
sheets
D.1 Introduction
D.2 General information forms - Instructions
D.3 Elevated-flare forms - Instructions
D.4 Enclosed-flare forms - Instructions
Annex E (informative) - Flare data sheets
E.1 SI units
E.2 USC units
Bibliography
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