Standard
Track updates
AS 5092-2009
[Current]CNG refuelling stations
Specifies requirements for the design, construction, operation and maintenance of compressed natural gas (CNG) refuelling stations which can be one of the following: (a) fast fill, where vehicles are filled in a period of minutes, analogous to liquid refuelling; (b) time fill, where one or (in most cases) a number of vehicles are filled simultaneously over a period of some hours; or (c) a combination of fast fill and time fill.
Published: 01/10/2009
Pages: 36
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Referenced documents
1.3 Definitions
1.4 Additional requirements for public refuelling stations
1.5 Approvals
1.5.1 Technical Regulators’ requirements
1.6 Supply enquiries
1.6.1 Gas supplier
1.6.2 Electricity supplier
2 Components
2.1 General
2.2 Gas-fired appliances
2.3 Compressors
2.3.1 General
2.3.2 Separators
2.3.3 Separator drainage
2.3.4 Compressor unloading/blow down systems
2.3.5 Relief valves
2.3.6 Instruments
2.4 Piping (including flexible piping/hoses and tubing)
2.4.1 Gas inlet train components
2.4.2 Compressor skid piping and hoses
2.4.3 Discharge piping/tubing
2.4.4 Hose assemblies (other than compressor skid hoses)
2.5 Valves, piping and tubing components
2.5.1 General
2.5.2 Gas inlet train
2.5.3 Valves and components for the compressor skid
2.5.4 Pressure valves
2.6 Safety devices for pressure protection
2.7 Pressure gauges
2.8 Electrical equipment and wiring
2.9 Refuelling hose assemblies
2.10 Refuelling connectors
2.11 Refuelling hose assembly breakaway couplings
2.11.1 Refuelling hose breakaway coupling
2.11.2 Vent hose breakaway coupling
2.11.3 Refuelling hose assembly attachment
3 Installations
3.1 Planning permission and licences
3.2 Location, security and physical protection of equipment
3.2.1 Non-public access installations on private property sites
3.2.1.1 General
3.2.1.2 Compressed gas storage systems
3.2.1.3 Gas compression equipment, dispensers/fill posts and all vents
3.2.2 Public access sites
3.2.3 Mobile storage units
3.2.4 Roofing
3.2.5 Fire protection
3.2.6 Illumination
3.2.7 Signs and notices
3.3 Refuelling station elements
3.4 Inlet gas supply equipment
3.5 Gas compression equipment
3.6 Compressed gas storage systems
3.6.1 Static storage systems
3.6.2 Mobile storage systems
3.7 Dispensers/fill posts
3.7.1 Minimum requirements
3.7.2 Additional components
3.7.3 Slow fill stations
3.8 High pressure discharge system
3.8.1 General
3.8.2 High pressure piping/tubing
3.8.2.1 Design and layout
3.8.2.2 Fabrication
3.8.3 High pressure valves, fittings and safety devices
3.8.3.1 Isolating valves
3.8.3.2 Non-return valves
3.8.3.3 Components
3.9 Safety and control systems
3.9.1 Safety devices for over pressure protection
3.9.2 Compressor protection switches/devices
3.9.3 Refuelling pressure control
3.9.4 Controls for gas storage and vehicle filling
3.10 Power and control electrical systems
3.10.1 Power electrics
3.10.2 Control systems
4 Testing and commissioning
4.1 General
4.2 Station compliance documentation
4.3 Works test results
4.4 Commisioning documentation and records
5 Operation and maintenance
5.1 General
5.2 Establishment of procedures
5.2.1 Procedures required
5.2.2 Promulgation of procedures
5.2.3 Review and upkeep of procedures
5.2.4 Operating procedures
5.2.5 Maintenance procedures
5.2.6 Emergency procedures
5.2.7 Training of personnel
5.2.7.1 Operational staff
5.2.7.2 Visitors
5.2.7.3 Refresher training
5.3 Supervision
5.4 Records
5.5 Specific operating procedures
5.5.1 Commissioning new or modified equipment
5.5.2 Outlets not in use
5.5.3 Ignition sources
5.5.4 Illumination
5.6 Specific maintenance, inspection and testing
5.6.1 General
5.6.2 Scheduled inspections and tests
5.6.2.1 Inspections based on usage
5.6.2.2 Fixed time interval inspections
5.6.2.3 Gas containers
5.6.2.4 Safety relief devices
5.6.2.5 Fire protection equipment
5.6.2.6 Records
5.6.3 Authorization of work
5.6.4 Work permit
5.6.5 Safe procedures
5.6.6 Preparation of work site
5.6.7 Completion of work
5.6.8 Hot work
5.6.9 Routine work
5.6.10 Equipment alterations
5.6.11 Work within hazardous areas
5.6.12 Site upkeep
Appendix A
Appendix B
Appendix C
C1 Before refuelling
C2 Refuelling procedure
Appendix D
D1 General
D2 Checklist for putting station into service and safety inspection for refuelling stations
Appendix E
Cited references in this standard
[Current]
Valves for compressed gas cylinders, Part 1: Specifications, type testing, and manufacturing tests and inspections
AG 807
Approval requirements for natural gas flexible hose and hose assemblies for pressures above 2.6 MPa
[Current]
Methods for fire tests on building materials, components and structures, Part 4: Fire-resistance tests for elements of construction
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