AS/NZS 1596:1997
Storage and handling of Liquefied Petroleum Gas
Specifies requirements for the location, design, construction, commissioning and operation of an installation for the storage and handling of LP gas. Separate sections deal with above-ground and underground storage tanks, cylinder supply systems, cylinder filling, automotive filling installations and procedures for a wide variety of operations necessary on or in conjunction with an installation. Appendices cover filling levels, markings, safety valves, locations, line identification, leakage testing, hazardous areas, space heaters, decanting procedures, emergency plans, refuelling, fire protection, and driver instruction signs.
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AS/NZS 1596:1997 STORAGE AND HANDLING OF LP GAS
PREFACE
CONTENTS
FOREWORD
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE AND APPLICATION
1.1.1 Scope
1.1.2 Application
1.2 OBJECTIVE
1.3 INTERPRETATIONS
1.4 REFERENCED DOCUMENTS
1.5 DEFINITIONS
1.5.1 ADG Code
1.5.2 AGA
1.5.3 AIP
1.5.4 ALPGA
1.5.5 Approved, approval
1.5.6 Authority
1.5.7 Automotive filling installation
1.5.8 Boundary
1.5.9 Capacity (of a tank or cylinder)
1.5.10 Combustible
1.5.11 Combustible liquid
1.5.12 Compound
1.5.13 Container
1.5.14 Cylinder
1.5.15 Decanting
1.5.16 Direct connection
1.5.17 Emergency shut-down system
1.5.18 Excess-flow valve
1.5.19 Filling connection
1.5.20 Fire resistance level (FRL)
1.5.21 Firewall
1.5.22 Fixed liquid level gauge or fixed ullage gauge
1.5.23 Flammable liquid
1.5.24 Fleet refuelling
1.5.25 Fusible link
1.5.26 Gas distributor
1.5.27 Gas free
1.5.28 Hazardous area
1.5.29 Hot work
1.5.30 Ignition source
1.6 RESTRICTIONS ON IGNITION SOURCES
SECTION 2 MINOR STORAGE AND USAGE
2.1 APPLICATION
2.2 PRECAUTIONS
2.3 RESTAURANTS
2.4 LP GAS CYLINDERS ON TROLLEYS
2.5 NON-REFILLABLE CONTAINERS
2.6 CYLINDER USE
SECTION 3 COMPONENTS FOR TANK SYSTEMS
3.1 APPLICATION
3.2 TANK DESIGN AND CONSTRUCTION
3.2.1 General design
3.2.2 Tank data plate
3.3 CONTROL OF LP GAS OUTFLOW
3.3.1 Minimization of outflow
3.3.2 Safety valve
3.3.3 Openings for gauges
3.3.4 Primary shut-down system
3.3.5 Secondary shut-down system
3.3.6 Tanks larger than 200 kL
3.4 SAFETY VALVES
3.4.1 Provision of safety valves
3.4.2 Discharge provisions
3.4.3 Reserve safety valves
3.5 VALVES AND ACCESSORIES
3.5.1 Suitability
3.5.2 Valve indicators and marking
3.5.3 Filling connection on tank
3.5.4 Liquid level and contents
3.5.5 Pressure gauges
3.5.6 Temperature gauge
3.5.7 Regulators
3.5.8 Provision for emptying tank
3.5.9 Electrical equipment
3.6 PIPING
3.6.1 Design for pressure
3.6.2 Joints
3.6.3 Joints in copper pipe
3.6.4 Flexible pipe connections
3.6.5 Transfer hose
3.6.6 Transfer hose couplings
3.6.7 Expansion flexibility
3.7 VAPORIZERS
3.7.1 Design and construction
3.7.2 Marking
SECTION 4 TANK SYSTEM INSTALLATION
4.1 APPLICATION
4.2 TANK SPACING AND SEPARATION DISTANCES
4.2.1 General location and spacing
4.2.2 Tanks in groups
4.2.3 Changed site conditions
4.2.4 Aerial wiring systems
4.2.5 Distances to other gas storages
4.2.6 On-site storages and flammable and combustible materials
4.2.7 Ignition source
4.2.8 Use of vapour barriers and firewalls
4.3 TANK SITE CONDITIONS
4.3.1 Ground conditions
4.3.2 Ventilation and access
4.4 CONSTRUCTION OF FIREWALLS, VAPOUR BARRIERS AND THERMAL SCREENS
4.4.1 Vapour barriers
4.4.2 Firewalls
4.4.3 Thermal screens
4.4.4 Use of existing construction
4.5 TANK FOUNDATIONS AND SUPPORTS
4.5.1 Foundations and supports
4.5.2 Fire resistance of supports
4.5.3 Expansion provision
4.6 TANK INSTALLATION AND DESIGN
4.7 CONNECTIONS FOR TANK FILLING AND TANKER LOADING
4.7.1 Filling connection
4.7.2 Direct connection
4.7.3 Remote connection
4.7.4 Tanker loading
4.7.5 Access for contents gauging
4.7.6 Hose venting
4.7.7 Separation distances
4.8 EMERGENCY SHUTDOWN SYSTEM
4.8.1 General design
4.8.2 Fire actuation
4.8.3 Manual actuation
4.8.4 Tanker transfer protection
4.9 PIPING
4.9.1 Interconnected tanks
4.9.2 Liquid lines between valves
4.9.3 Piping system
4.9.4 Piping drain or bleed valves
4.9.5 Support of piping
4.9.6 Piping within buildings
4.9.7 Underground piping
4.9.8 Identification of pipes
4.9.9 Pipework testing
4.10 VAPORIZER INSTALLATION
4.10.1 Compatibility check
4.10.2 Shelter
4.10.3 Location
4.11 REGULATORS
4.11.1 Location
4.11.2 Venting
4.11.3 Overpressure protection
4.12 PUMPS AND COMPRESSORS
4.12.1 Suitability
4.12.2 Pressure limitation
4.12.3 Pumps
4.12.4 Compressors
4.12.5 Pump location
4.13 SECURITY AND DAMAGE AVOIDANCE
4.13.1 Tank security
4.13.2 Security fence
4.13.3 Lockable enclosure
4.13.4 Damage avoidance
4.14 LIGHTNING AND BONDING PROTECTION
4.14.1 Lightning protection
4.14.2 Bonding to tanker
4.15 LADDERS, STEPS AND PLATFORMS
4.16 LEAK DETECTION
4.17 MARKINGS AND NOTICES
4.18 ILLUMINATION
4.19 UNODOURIZED GAS
4.19.1 Emergency shutdown system
4.19.2 Location of gas detectors
4.19.3 Function
SECTION 5 UNDERGROUND TANK INSTALLATIONS
5.1 APPLICATION
5.2 CORROSION CONTROL
5.2.1 General
5.2.2 Testing of coating
5.3 LOCATION AND INSTALLATION
5.3.1 Tank location
5.3.2 Tanks in groups
5.3.3 Tank covering
5.3.4 Anchoring
5.3.5 Tank branches and tappings
5.3.6 Gas storages other than LP Gas
5.4 ACCESS, PROTECTION, FITTINGS AND ACCESSORIES
5.4.1 Access
5.4.2 Protection for above-ground equipment
5.4.3 Access pits
5.4.4 Contents gauging
5.5 DISCHARGE FROM SAFETY RELIEF DEVICE
5.5.1 Discharge rate
5.5.2 Point of discharge
SECTION 6 CYLINDERS AND CYLINDER SYSTEMS
6.1 APPLICATION
6.2 CYLINDERS
6.2.1 Standards
6.2.2 Exchange-fill cylinders
6.2.3 In-situ fill cylinders
6.2.4 Cylinders filled by decanting
6.2.5 Liquid withdrawal cylinders
6.2.6 Butane cylinders
6.3 REGULATORS AND PIPING
6.3.1 Regulators
6.3.2 Piping and hose
6.4 CYLINDERS IN USE
6.4.1 General
6.4.2 Cylinder location
6.4.3 Hazardous area requirements
6.4.4 Changed site conditions
6.4.5 Use of vapour barriers and firewalls
6.4.6 Ventilation and access
6.4.7 Installing cylinders
6.4.8 Installations for in-situ filling
6.4.9 Cylinders in public locations
6.5 CYLINDERS IN USE WITHIN BUILDINGS
6.6 CYLINDER STORAGE
6.6.1 Site requirements
6.6.2 Separation distances
6.6.3 Cylinder storage
SECTION 7 CYLINDER-FILLING INSTALLATIONS—AUSTRALIA
7.1 APPLICATION
7.2 GENERAL
7.2.1 Filling by mass
7.2.2 Filling by volume
7.2.3 Ignition sources
7.2.4 Use of vapour barriers and firewalls
7.2.5 Suitability of gas supply
7.3 CYLINDER-FILLING AREA
7.3.1 Location of filling point
7.3.2 Adjacent storage
7.3.3 Ventilation
7.3.4 Emergency shut-down device
7.4 DECANTING
7.4.1 Restrictions
7.4.2 Decanting transfer equipment
7.4.3 Location
7.4.4 Positioning of cylinder
7.4.5 Security
7.4.6 Notices
SECTION 8 CYLINDER-FILLING INSTALLATIONS—NEW ZEALAND
8.1 APPLICATION
8.2 GENERAL
8.2.1 Filling by mass
8.2.2 Filling by volume
8.2.3 Ignition sources
8.2.4 Use of vapour barriers and firewalls
8.3 CYLINDER-FILLING AREA
8.3.1 Location of filling point
8.3.2 Adjacent storage
8.3.3 Service station forecourt filling
8.3.4 Ventilation
8.3.5 Security
8.3.6 Notices
8.3.7 Emergency shut-down device
8.4 DECANTING
8.4.1 Capacity restrictions
8.4.2 Decanting connection
8.4.3 Location
8.4.4 Arrangement of cylinder
8.4.5 Decanting from tanks
SECTION 9 AUTOMOTIVE-FILLING INSTALLATIONS
9.1 APPLICATION
9.2 COMMON REQUIREMENTS
9.2.1 Ignition sources
9.2.2 Tank and pump piping
9.2.3 Filling area
9.3 DISPENSING SYSTEMS
9.3.1 General design
9.3.2 Style A dispenser system
9.3.3 Dispensing hose
9.3.4 Dispensing nozzle
9.3.5 Filler caps
9.4 NOTICES, SIGNS AND INSTRUCTIONS
9.5 SPECIFIC REQUIREMENTS FOR SERVICE STATIONS
9.5.1 Application
9.5.2 Storage tanks above ground
9.5.3 Spillage control
9.5.4 Connections for tank filling
9.5.5 Provisions for emptying tank
9.5.6 Location of LP Gas dispensers
9.5.7 Dispenser service lines
9.5.8 Piping for above-ground tanks
9.5.9 Pump bypass
9.5.10 Location of pumps
9.5.11 Use of thermal screens and fire walls
9.5.12 Tanker access and egress
9.5.13 Tanker unloading position
9.5.14 Remote shut-down system
9.5.15 Damage avoidance
9.5.16 Dispenser system
9.5.17 Lock-up provisions
9.5.18 Self-service
9.5.19 Decanting cylinders
9.6 SITE SUITABILITY
9.7 LAND USE CONTROLS
9.7.1 General
9.7.2 Separation distances
9.7.3 Population limit areas
9.8 SAFETY MANAGEMENT SYSTEM
SECTION 10 OPERATIONS
10.1 APPLICATION
10.2 GENERAL PRECAUTIONS
10.2.1 Requirements
10.2.2 Odour
10.2.3 Omission of odour
10.2.4 Initial pre-delivery check
10.2.5 Subsequent predelivery checks
10.2.6 Post-delivery checks
10.2.7 Tanks out of service
10.2.8 Changed usage of tanks
10.2.9 Post-installation site work
10.2.10 Tank isolation
10.3 ESTABLISHMENT OF PROCEDURES
10.3.1 Procedures required
10.3.2 Documentation of procedures
10.3.3 Review and upkeep of procedures
10.3.4 Operating procedures
10.3.5 Construction and maintenance procedures
10.3.6 Emergency procedures
10.3.7 Training
10.4 COMPLIANCE, SUPERVISION AND RECORDS
10.4.1 Compliance with procedures
10.4.2 Supervision
10.4.3 Records
10.5 CONSTRUCTION, INSPECTION, TESTING AND MAINTENANCE
10.5.1 Installation certification
10.5.2 Scheduled checks
10.5.3 Tanks
10.5.4 Piping
10.5.5 Hoses
10.5.6 Flexible connections
10.5.7 Protective flow-control valves
10.5.8 Authorization of work
10.5.9 Safe procedures
10.5.10 Work preparation
10.5.11 Completion of work
10.5.12 Site upkeep
10.6 SPECIFIC OPERATING PROCEDURES
10.6.1 Commissioning new or modified equipment
10.6.2 Outlets not in use
10.6.3 Personnel safety
10.6.4 Security measures
10.7 PREPARATIONS FOR THE TRANSPORT OR REMOVAL OF STORAGE TANKS
10.8 TANKER OPERATIONS
10.8.1 Delivery vehicle
10.8.2 Tanker loading procedures
10.8.3 Check of accessories
10.8.4 Refuelling
10.8.5 Parking and garaging
10.8.6 Tanker servicing and repair
10.9 GENERAL PRECAUTIONS FOR TANKER TRANSFER
10.9.1 Suitability of gas
10.9.2 Condition of installation
10.9.3 Advice of delivery
10.9.5 Safety of hose
10.9.6 Use of gloves
10.9.7 Tanker location
10.9.8 Multiple tanker transfer operations
10.10 SUPERVISION OF DELIVERY
10.11 PROCEDURES FOR FILLING AND EMPTYING TANKS
10.11.1 Valve handles
10.11.2 Venting
10.11.3 Procedures prior to transfer
10.11.4 Procedures during transfer
10.11.5 Procedures after transfer
10.12 CYLINDER FILLING
10.12.1 General requirements
10.12.2 Supervision
10.12.3 Leakage check
10.12.4 In-situ filling
10.12.5 Filling at automotive fuel dispensers (Australia only)
10.12.6 Decanting
10.13 FILLING FROM TANKERS TO CYLINDERS OTHER THAN IN-SITU
10.13.1 Application
10.13.2 General requirements
10.13.3 Preliminary safety check
10.13.4 Notices
10.13.5 Tanker egress
10.13.6 Cylinder storage and handling
10.13.7 Separation distances
10.14 CYLINDER STORAGE AND HANDLING
SECTION 11 FIRE SAFETY
11.1 GENERAL REQUIREMENTS
11.1.1 Integration with existing facilities
11.1.2 Variations to requirements
11.1.3 System compatibility
11.1.4 Location
11.2 CYLINDERS
11.2.1 Cylinder storage
11.2.2 Cylinder filling
11.3 TANK INSTALLATIONS
11.3.1 Site evaluation
11.3.2 Heat protection
11.4 AUTOMOTIVE FILLING INSTALLATIONS
11.5 DETAIL REQUIREMENTS
11.5.1 Hydrant system
11.5.2 Hose reels
11.5.3 Water spray system
11.5.4 Monitors
11.5.5 Fire-extinguishers
11.5.6 Water supply
APPENDIX A - LIST OF REFERENCED DOCUMENTS
APPENDIX B - TANK OR CYLINDER FILLING LEVEL
B1 INTRODUCTION
B2 DETERMINATION OF STANDARD FILLING LEVEL
B2.1 Application
B2.2 Principle
B2.3 Procedure
B3 PROCEDURE—FILLING BY MASS
B3.1 Application
B3.2 Filling procedure
B4 PROCEDURE—FILLING BY VOLUME-STANDARD LIQUID LEVEL METHOD
B4.1 Application
B4.2 Filling procedure
B5 PROCEDURE—FILLING BY VOLUME-TEMPERATURE CORRECTION METHOD
B5.1 Application
B5.2 Determination of maximum permitted level
B5.3 Filling procedure
APPENDIX C - MARKINGS, SIGNS AND NOTICES
C1 TANK SYSTEMS
C1.1 Valve indicators and marking
C1.2 Direction of flow
C1.3 Vaporizer marking
C2 TANK INSTALLATIONS
C2.1 Emergency shut-down system marking
C2.2 Tank or tank storage area placarding
C2.3 Placard
C2.4 Construction of signs
C3 CYLINDER INSTALLATIONS (AUSTRALIA ONLY)
C3.1 Surface coating of cylinders
C3.2 Liquid withdrawal cylinders
C4 CYLINDER FILLING
C4.1 Decanting cylinder notices
C4.2 Cylinder filling installations
C5 AUTOMOTIVE FILLING STATIONS—VEHICLE FILLING AREA
C5.1 Precautionary sign
C5.2 Driver instructions
C5.3 Emergency procedures
APPENDIX D - DISCHARGE CAPACITY OF SAFETY VALVES
D1 INTRODUCTION
D2 TANKS
D3 VAPORIZERS
APPENDIX E - TANK AND CYLINDER LOCATION
APPENDIX F - IDENTIFICATION OF LIQUID AND VAPOUR LINES
APPENDIX G - LEAKAGE TESTING OF PIPEWORK
G1 CONNECTIONS BETWEEN TANK OR CYLINDER AND FIRST STAGE REGULATOR
G2 ALL OTHER PIPEWORK
G2.1 General
G2.2 Low pressure pipework
G2.3 High pressure pipework
APPENDIX H - HAZARDOUS AREAS
APPENDIX I - INDUSTRIAL MOBILE SPACE HEATERS
APPENDIX J - DECANTING PROCEDURE
APPENDIX K - EMERGENCY PLANS
K1 INTRODUCTION
K2 ON-SITE EMERGENCY PLAN
K3 OFF-SITE EMERGENCY PLAN
K4 EMERGENCY INFORMATION CONTAINER
APPENDIX L - MOTOR VEHICLE REFUELLING
APPENDIX M - FIRE EXPOSURE PROTECTION
M1 INTRODUCTION
M2 ASSESSMENT PROCEDURE
M3 EVALUATION
APPENDIX N - DRIVER INSTRUCTION SIGNS
N1 DRIVER INSTRUCTION SIGNS
N2 WARNING SIGN
N3 FILLING INSTRUCTIONS
APPENDIX O - SCOPE OF AS/NZS 1596
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AS/NZS 1596:1997 STORAGE AND HANDLING OF LP GAS
PREFACE
CONTENTS
FOREWORD
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE AND APPLICATION
1.1.1 Scope
1.1.2 Application
1.2 OBJECTIVE
1.3 INTERPRETATIONS
1.4 REFERENCED DOCUMENTS
1.5 DEFINITIONS
1.5.1 ADG Code
1.5.2 AGA
1.5.3 AIP
1.5.4 ALPGA
1.5.5 Approved, approval
1.5.6 Authority
1.5.7 Automotive filling installation
1.5.8 Boundary
1.5.9 Capacity (of a tank or cylinder)
1.5.10 Combustible
1.5.11 Combustible liquid
1.5.12 Compound
1.5.13 Container
1.5.14 Cylinder
1.5.15 Decanting
1.5.16 Direct connection
1.5.17 Emergency shut-down system
1.5.18 Excess-flow valve
1.5.19 Filling connection
1.5.20 Fire resistance level (FRL)
1.5.21 Firewall
1.5.22 Fixed liquid level gauge or fixed ullage gauge
1.5.23 Flammable liquid
1.5.24 Fleet refuelling
1.5.25 Fusible link
1.5.26 Gas distributor
1.5.27 Gas free
1.5.28 Hazardous area
1.5.29 Hot work
1.5.30 Ignition source
1.6 RESTRICTIONS ON IGNITION SOURCES
SECTION 2 MINOR STORAGE AND USAGE
2.1 APPLICATION
2.2 PRECAUTIONS
2.3 RESTAURANTS
2.4 LP GAS CYLINDERS ON TROLLEYS
2.5 NON-REFILLABLE CONTAINERS
2.6 CYLINDER USE
SECTION 3 COMPONENTS FOR TANK SYSTEMS
3.1 APPLICATION
3.2 TANK DESIGN AND CONSTRUCTION
3.2.1 General design
3.2.2 Tank data plate
3.3 CONTROL OF LP GAS OUTFLOW
3.3.1 Minimization of outflow
3.3.2 Safety valve
3.3.3 Openings for gauges
3.3.4 Primary shut-down system
3.3.5 Secondary shut-down system
3.3.6 Tanks larger than 200 kL
3.4 SAFETY VALVES
3.4.1 Provision of safety valves
3.4.2 Discharge provisions
3.4.3 Reserve safety valves
3.5 VALVES AND ACCESSORIES
3.5.1 Suitability
3.5.2 Valve indicators and marking
3.5.3 Filling connection on tank
3.5.4 Liquid level and contents
3.5.5 Pressure gauges
3.5.6 Temperature gauge
3.5.7 Regulators
3.5.8 Provision for emptying tank
3.5.9 Electrical equipment
3.6 PIPING
3.6.1 Design for pressure
3.6.2 Joints
3.6.3 Joints in copper pipe
3.6.4 Flexible pipe connections
3.6.5 Transfer hose
3.6.6 Transfer hose couplings
3.6.7 Expansion flexibility
3.7 VAPORIZERS
3.7.1 Design and construction
3.7.2 Marking
SECTION 4 TANK SYSTEM INSTALLATION
4.1 APPLICATION
4.2 TANK SPACING AND SEPARATION DISTANCES
4.2.1 General location and spacing
4.2.2 Tanks in groups
4.2.3 Changed site conditions
4.2.4 Aerial wiring systems
4.2.5 Distances to other gas storages
4.2.6 On-site storages and flammable and combustible materials
4.2.7 Ignition source
4.2.8 Use of vapour barriers and firewalls
4.3 TANK SITE CONDITIONS
4.3.1 Ground conditions
4.3.2 Ventilation and access
4.4 CONSTRUCTION OF FIREWALLS, VAPOUR BARRIERS AND THERMAL SCREENS
4.4.1 Vapour barriers
4.4.2 Firewalls
4.4.3 Thermal screens
4.4.4 Use of existing construction
4.5 TANK FOUNDATIONS AND SUPPORTS
4.5.1 Foundations and supports
4.5.2 Fire resistance of supports
4.5.3 Expansion provision
4.6 TANK INSTALLATION AND DESIGN
4.7 CONNECTIONS FOR TANK FILLING AND TANKER LOADING
4.7.1 Filling connection
4.7.2 Direct connection
4.7.3 Remote connection
4.7.4 Tanker loading
4.7.5 Access for contents gauging
4.7.6 Hose venting
4.7.7 Separation distances
4.8 EMERGENCY SHUTDOWN SYSTEM
4.8.1 General design
4.8.2 Fire actuation
4.8.3 Manual actuation
4.8.4 Tanker transfer protection
4.9 PIPING
4.9.1 Interconnected tanks
4.9.2 Liquid lines between valves
4.9.3 Piping system
4.9.4 Piping drain or bleed valves
4.9.5 Support of piping
4.9.6 Piping within buildings
4.9.7 Underground piping
4.9.8 Identification of pipes
4.9.9 Pipework testing
4.10 VAPORIZER INSTALLATION
4.10.1 Compatibility check
4.10.2 Shelter
4.10.3 Location
4.11 REGULATORS
4.11.1 Location
4.11.2 Venting
4.11.3 Overpressure protection
4.12 PUMPS AND COMPRESSORS
4.12.1 Suitability
4.12.2 Pressure limitation
4.12.3 Pumps
4.12.4 Compressors
4.12.5 Pump location
4.13 SECURITY AND DAMAGE AVOIDANCE
4.13.1 Tank security
4.13.2 Security fence
4.13.3 Lockable enclosure
4.13.4 Damage avoidance
4.14 LIGHTNING AND BONDING PROTECTION
4.14.1 Lightning protection
4.14.2 Bonding to tanker
4.15 LADDERS, STEPS AND PLATFORMS
4.16 LEAK DETECTION
4.17 MARKINGS AND NOTICES
4.18 ILLUMINATION
4.19 UNODOURIZED GAS
4.19.1 Emergency shutdown system
4.19.2 Location of gas detectors
4.19.3 Function
SECTION 5 UNDERGROUND TANK INSTALLATIONS
5.1 APPLICATION
5.2 CORROSION CONTROL
5.2.1 General
5.2.2 Testing of coating
5.3 LOCATION AND INSTALLATION
5.3.1 Tank location
5.3.2 Tanks in groups
5.3.3 Tank covering
5.3.4 Anchoring
5.3.5 Tank branches and tappings
5.3.6 Gas storages other than LP Gas
5.4 ACCESS, PROTECTION, FITTINGS AND ACCESSORIES
5.4.1 Access
5.4.2 Protection for above-ground equipment
5.4.3 Access pits
5.4.4 Contents gauging
5.5 DISCHARGE FROM SAFETY RELIEF DEVICE
5.5.1 Discharge rate
5.5.2 Point of discharge
SECTION 6 CYLINDERS AND CYLINDER SYSTEMS
6.1 APPLICATION
6.2 CYLINDERS
6.2.1 Standards
6.2.2 Exchange-fill cylinders
6.2.3 In-situ fill cylinders
6.2.4 Cylinders filled by decanting
6.2.5 Liquid withdrawal cylinders
6.2.6 Butane cylinders
6.3 REGULATORS AND PIPING
6.3.1 Regulators
6.3.2 Piping and hose
6.4 CYLINDERS IN USE
6.4.1 General
6.4.2 Cylinder location
6.4.3 Hazardous area requirements
6.4.4 Changed site conditions
6.4.5 Use of vapour barriers and firewalls
6.4.6 Ventilation and access
6.4.7 Installing cylinders
6.4.8 Installations for in-situ filling
6.4.9 Cylinders in public locations
6.5 CYLINDERS IN USE WITHIN BUILDINGS
6.6 CYLINDER STORAGE
6.6.1 Site requirements
6.6.2 Separation distances
6.6.3 Cylinder storage
SECTION 7 CYLINDER-FILLING INSTALLATIONS—AUSTRALIA
7.1 APPLICATION
7.2 GENERAL
7.2.1 Filling by mass
7.2.2 Filling by volume
7.2.3 Ignition sources
7.2.4 Use of vapour barriers and firewalls
7.2.5 Suitability of gas supply
7.3 CYLINDER-FILLING AREA
7.3.1 Location of filling point
7.3.2 Adjacent storage
7.3.3 Ventilation
7.3.4 Emergency shut-down device
7.4 DECANTING
7.4.1 Restrictions
7.4.2 Decanting transfer equipment
7.4.3 Location
7.4.4 Positioning of cylinder
7.4.5 Security
7.4.6 Notices
SECTION 8 CYLINDER-FILLING INSTALLATIONS—NEW ZEALAND
8.1 APPLICATION
8.2 GENERAL
8.2.1 Filling by mass
8.2.2 Filling by volume
8.2.3 Ignition sources
8.2.4 Use of vapour barriers and firewalls
8.3 CYLINDER-FILLING AREA
8.3.1 Location of filling point
8.3.2 Adjacent storage
8.3.3 Service station forecourt filling
8.3.4 Ventilation
8.3.5 Security
8.3.6 Notices
8.3.7 Emergency shut-down device
8.4 DECANTING
8.4.1 Capacity restrictions
8.4.2 Decanting connection
8.4.3 Location
8.4.4 Arrangement of cylinder
8.4.5 Decanting from tanks
SECTION 9 AUTOMOTIVE-FILLING INSTALLATIONS
9.1 APPLICATION
9.2 COMMON REQUIREMENTS
9.2.1 Ignition sources
9.2.2 Tank and pump piping
9.2.3 Filling area
9.3 DISPENSING SYSTEMS
9.3.1 General design
9.3.2 Style A dispenser system
9.3.3 Dispensing hose
9.3.4 Dispensing nozzle
9.3.5 Filler caps
9.4 NOTICES, SIGNS AND INSTRUCTIONS
9.5 SPECIFIC REQUIREMENTS FOR SERVICE STATIONS
9.5.1 Application
9.5.2 Storage tanks above ground
9.5.3 Spillage control
9.5.4 Connections for tank filling
9.5.5 Provisions for emptying tank
9.5.6 Location of LP Gas dispensers
9.5.7 Dispenser service lines
9.5.8 Piping for above-ground tanks
9.5.9 Pump bypass
9.5.10 Location of pumps
9.5.11 Use of thermal screens and fire walls
9.5.12 Tanker access and egress
9.5.13 Tanker unloading position
9.5.14 Remote shut-down system
9.5.15 Damage avoidance
9.5.16 Dispenser system
9.5.17 Lock-up provisions
9.5.18 Self-service
9.5.19 Decanting cylinders
9.6 SITE SUITABILITY
9.7 LAND USE CONTROLS
9.7.1 General
9.7.2 Separation distances
9.7.3 Population limit areas
9.8 SAFETY MANAGEMENT SYSTEM
SECTION 10 OPERATIONS
10.1 APPLICATION
10.2 GENERAL PRECAUTIONS
10.2.1 Requirements
10.2.2 Odour
10.2.3 Omission of odour
10.2.4 Initial pre-delivery check
10.2.5 Subsequent predelivery checks
10.2.6 Post-delivery checks
10.2.7 Tanks out of service
10.2.8 Changed usage of tanks
10.2.9 Post-installation site work
10.2.10 Tank isolation
10.3 ESTABLISHMENT OF PROCEDURES
10.3.1 Procedures required
10.3.2 Documentation of procedures
10.3.3 Review and upkeep of procedures
10.3.4 Operating procedures
10.3.5 Construction and maintenance procedures
10.3.6 Emergency procedures
10.3.7 Training
10.4 COMPLIANCE, SUPERVISION AND RECORDS
10.4.1 Compliance with procedures
10.4.2 Supervision
10.4.3 Records
10.5 CONSTRUCTION, INSPECTION, TESTING AND MAINTENANCE
10.5.1 Installation certification
10.5.2 Scheduled checks
10.5.3 Tanks
10.5.4 Piping
10.5.5 Hoses
10.5.6 Flexible connections
10.5.7 Protective flow-control valves
10.5.8 Authorization of work
10.5.9 Safe procedures
10.5.10 Work preparation
10.5.11 Completion of work
10.5.12 Site upkeep
10.6 SPECIFIC OPERATING PROCEDURES
10.6.1 Commissioning new or modified equipment
10.6.2 Outlets not in use
10.6.3 Personnel safety
10.6.4 Security measures
10.7 PREPARATIONS FOR THE TRANSPORT OR REMOVAL OF STORAGE TANKS
10.8 TANKER OPERATIONS
10.8.1 Delivery vehicle
10.8.2 Tanker loading procedures
10.8.3 Check of accessories
10.8.4 Refuelling
10.8.5 Parking and garaging
10.8.6 Tanker servicing and repair
10.9 GENERAL PRECAUTIONS FOR TANKER TRANSFER
10.9.1 Suitability of gas
10.9.2 Condition of installation
10.9.3 Advice of delivery
10.9.5 Safety of hose
10.9.6 Use of gloves
10.9.7 Tanker location
10.9.8 Multiple tanker transfer operations
10.10 SUPERVISION OF DELIVERY
10.11 PROCEDURES FOR FILLING AND EMPTYING TANKS
10.11.1 Valve handles
10.11.2 Venting
10.11.3 Procedures prior to transfer
10.11.4 Procedures during transfer
10.11.5 Procedures after transfer
10.12 CYLINDER FILLING
10.12.1 General requirements
10.12.2 Supervision
10.12.3 Leakage check
10.12.4 In-situ filling
10.12.5 Filling at automotive fuel dispensers (Australia only)
10.12.6 Decanting
10.13 FILLING FROM TANKERS TO CYLINDERS OTHER THAN IN-SITU
10.13.1 Application
10.13.2 General requirements
10.13.3 Preliminary safety check
10.13.4 Notices
10.13.5 Tanker egress
10.13.6 Cylinder storage and handling
10.13.7 Separation distances
10.14 CYLINDER STORAGE AND HANDLING
SECTION 11 FIRE SAFETY
11.1 GENERAL REQUIREMENTS
11.1.1 Integration with existing facilities
11.1.2 Variations to requirements
11.1.3 System compatibility
11.1.4 Location
11.2 CYLINDERS
11.2.1 Cylinder storage
11.2.2 Cylinder filling
11.3 TANK INSTALLATIONS
11.3.1 Site evaluation
11.3.2 Heat protection
11.4 AUTOMOTIVE FILLING INSTALLATIONS
11.5 DETAIL REQUIREMENTS
11.5.1 Hydrant system
11.5.2 Hose reels
11.5.3 Water spray system
11.5.4 Monitors
11.5.5 Fire-extinguishers
11.5.6 Water supply
APPENDIX A - LIST OF REFERENCED DOCUMENTS
APPENDIX B - TANK OR CYLINDER FILLING LEVEL
B1 INTRODUCTION
B2 DETERMINATION OF STANDARD FILLING LEVEL
B2.1 Application
B2.2 Principle
B2.3 Procedure
B3 PROCEDURE—FILLING BY MASS
B3.1 Application
B3.2 Filling procedure
B4 PROCEDURE—FILLING BY VOLUME-STANDARD LIQUID LEVEL METHOD
B4.1 Application
B4.2 Filling procedure
B5 PROCEDURE—FILLING BY VOLUME-TEMPERATURE CORRECTION METHOD
B5.1 Application
B5.2 Determination of maximum permitted level
B5.3 Filling procedure
APPENDIX C - MARKINGS, SIGNS AND NOTICES
C1 TANK SYSTEMS
C1.1 Valve indicators and marking
C1.2 Direction of flow
C1.3 Vaporizer marking
C2 TANK INSTALLATIONS
C2.1 Emergency shut-down system marking
C2.2 Tank or tank storage area placarding
C2.3 Placard
C2.4 Construction of signs
C3 CYLINDER INSTALLATIONS (AUSTRALIA ONLY)
C3.1 Surface coating of cylinders
C3.2 Liquid withdrawal cylinders
C4 CYLINDER FILLING
C4.1 Decanting cylinder notices
C4.2 Cylinder filling installations
C5 AUTOMOTIVE FILLING STATIONS—VEHICLE FILLING AREA
C5.1 Precautionary sign
C5.2 Driver instructions
C5.3 Emergency procedures
APPENDIX D - DISCHARGE CAPACITY OF SAFETY VALVES
D1 INTRODUCTION
D2 TANKS
D3 VAPORIZERS
APPENDIX E - TANK AND CYLINDER LOCATION
APPENDIX F - IDENTIFICATION OF LIQUID AND VAPOUR LINES
APPENDIX G - LEAKAGE TESTING OF PIPEWORK
G1 CONNECTIONS BETWEEN TANK OR CYLINDER AND FIRST STAGE REGULATOR
G2 ALL OTHER PIPEWORK
G2.1 General
G2.2 Low pressure pipework
G2.3 High pressure pipework
APPENDIX H - HAZARDOUS AREAS
APPENDIX I - INDUSTRIAL MOBILE SPACE HEATERS
APPENDIX J - DECANTING PROCEDURE
APPENDIX K - EMERGENCY PLANS
K1 INTRODUCTION
K2 ON-SITE EMERGENCY PLAN
K3 OFF-SITE EMERGENCY PLAN
K4 EMERGENCY INFORMATION CONTAINER
APPENDIX L - MOTOR VEHICLE REFUELLING
APPENDIX M - FIRE EXPOSURE PROTECTION
M1 INTRODUCTION
M2 ASSESSMENT PROCEDURE
M3 EVALUATION
APPENDIX N - DRIVER INSTRUCTION SIGNS
N1 DRIVER INSTRUCTION SIGNS
N2 WARNING SIGN
N3 FILLING INSTRUCTIONS
APPENDIX O - SCOPE OF AS/NZS 1596
Amendments
Previous versions
AS/NZS 1596:1997
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