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NFPA 54: National Fuel Gas Code, 1999
- Chapter 1 General [Go to Page]
- 1.1 Scope.
- 1.2 Alternate Materials, Equipment, and Procedures.
- 1.3 Retroactivity.
- 1.4 Qualified Agency.
- 1.5 Interruption of Service.
- 1.6 Prevention of Accidental Ignition.
- 1.7 Definitions.
- Chapter 2 Gas Piping System Design, Materials, and Components [Go to Page]
- 2.1 Piping Plan.
- 2.2 Provision for Location of Point of Delivery.
- 2.3 Interconnections Between Gas Piping Systems.
- 2.4 Sizing of Gas Piping Systems.
- 2.5 Piping System Operating Pressure Limitations.
- 2.6 Acceptable Piping Materials and Joining Methods.
- 2.7 * Gas Meters.
- 2.8 * Gas Pressure Regulators.
- 2.9 Overpressure Protection Devices.
- 2.10 Back Pressure Protection.
- 2.11 Low-Pressure Protection.
- 2.12 Shutoff Valves.
- 2.13 Expansion and Flexibility.
- Chapter 3 Gas Piping Installation [Go to Page]
- 3.1 Piping Underground.
- 3.2 Aboveground Piping Outside.
- 3.3 Piping in Buildings.
- 3.4 Concealed Piping in Buildings.
- 3.5 Piping in Vertical Chases.
- 3.6 Gas Pipe Turns.
- 3.7 Drips and Sediment Traps.
- 3.8 Outlets.
- 3.9 Branch Pipe Connection.
- 3.10 Manual Gas Shutoff Valves.
- 3.11 Prohibited Devices.
- 3.12 Systems Containing Gas–Air Mixtures Outside the Flammable Range.
- 3.13 Systems Containing Flammable Gas–Air Mixtures.
- 3.14 Electrical Bonding and Grounding.
- 3.15 Electrical Circuits.
- 3.16 Electrical Connections.
- Chapter 4 Inspection, Testing, and Purging [Go to Page]
- 4.1 Pressure Testing and Inspection.
- 4.2 System and Equipment Leakage Test.
- 4.3 * Purging.
- Chapter 5 Equipment Installation [Go to Page]
- 5.1 General.
- 5.2 Accessibility and Clearance.
- 5.3 * Air for Combustion and Ventilation.
- 5.4 Equipment on Roofs.
- 5.5 Equipment Connections to Building Piping.
- 5.6 Electrical.
- 5.7 Room Temperature Thermostats.
- Chapter 6 Installation of Specific Equipment [Go to Page]
- 6.1 General.
- 6.2 Air-Conditioning Equipment (Gas-Fired Air Conditioners and Heat Pumps).
- 6.3 Central Heating Boilers and Furnaces.
- 6.4 Clothes Dryers.
- 6.5 Conversion Burners.
- 6.6 Decorative Appliances for Installation in Vented Fireplaces.
- 6.7 Gas Fireplaces, Vented.
- 6.8 Direct Makeup Air Heaters.
- 6.9 Direct Gas-Fired Industrial Air Heaters.
- 6.10 Duct Furnaces.
- 6.11 Floor Furnaces.
- 6.12 Food Service Equipment, Floor-Mounted.
- 6.13 Food Service Equipment Counter Appliances.
- 6.14 Hot Plates and Laundry Stoves.
- 6.15 Household Cooking Appliances.
- 6.16 Illuminating Appliances.
- 6.17 Incinerators, Commercial-Industrial.
- 6.18 Incinerators, Domestic.
- 6.19 Infrared Heaters.
- 6.20 Open-Top Broiler Units.
- 6.21 Outdoor Cooking Appliances.
- 6.22 Pool Heaters.
- 6.23 Refrigerators.
- 6.24 Room Heaters.
- 6.25 Stationary Gas Engines.
- 6.26 Gas-Fired Toilets.
- 6.27 Unit Heaters.
- 6.28 Wall Furnaces.
- 6.29 Water Heaters.
- 6.30 Compressed Natural Gas (CNG) Vehicular Fuel Systems.
- 6.31 Appliances for Installation in Manufactured Housing.
- Chapter 7 Venting of Equipment [Go to Page]
- 7.1 General.
- 7.2 Specification for Venting.
- 7.3 Design and Construction.
- 7.4 Type of Venting System to Be Used.
- 7.5 Masonry, Metal, and Factory-Built Chimneys.
- 7.6 Gas Vents.
- 7.7 Single-Wall Metal Pipe.
- 7.8 * Through the Wall Vent Termination.
- 7.9 Condensation Drain.
- 7.10 Vent Connectors for Category I Gas Utilization Equipment.
- 7.11 Vent Connectors for Category II, Category III, and Category IV Gas Utilization Equipment.
- 7.12 Draft Hoods and Draft Controls.
- 7.13 Manually Operated Dampers.
- 7.14 Automatically Operated Vent Dampers.
- 7.15 Obstructions.
- Chapter 8 Procedures to Be Followed to Place Equipment in Operation [Go to Page]
- 8.1 Adjusting the Burner Input.
- 8.2 * Primary Air Adjustment.
- 8.3 Safety Shutoff Devices.
- 8.4 Automatic Ignition.
- 8.5 Protective Devices.
- 8.6 * Checking the Draft.
- 8.7 Operating Instructions.
- Chapter 9 Sizing Tables [Go to Page]
- 9.1 Tables for Sizing Gas Piping Systems.
- Chapter 10 Sizing of Category I Venting Systems [Go to Page]
- 10.1 Additional Requirements to Single Appliance Vent Tables 10.1 Through 10.5
- 10.2 Additional Requirements to Multiple Appliance Vent Tables 10.6 Through 10.13(a) and (b).
- Chapter 11 Referenced Publications [Go to Page]
- 11.1 The following documents or portions thereof are referenced within this code as mandatory re...
- Appendix A Explanatory Material
- Appendix B Coordination of Gas Utilization Equipment Design, Construction, and Maintenance
- Appendix C Sizing and Capacities of Gas Piping
- Appendix D Suggested Method for Checking for Leakage
- Appendix E Suggested Emergency Procedure for Gas Leaks
- Appendix F Flow of Gas Through Fixed Orifices
- Appendix G Sizing of Venting Systems Serving Appliances Equipped with Draft Hoods, Category I Ap...
- Appendix H Recommended Procedure for Safety Inspection of an Existing Appliance Installation
- Appendix I Recommended Procedure for Installing Electrically Operated Automatic Vent Damper Devi...
- Appendix J Recommended Procedure for Installing Mechanically Actuated Automatic Vent Damper Devi...
- Appendix K Recommended Procedure for Installing Thermally Actuated Automatic Vent Damper Devices...
- Appendix L Example of Air Opening Design for Combustion and Ventilation.
- Appendix M Referenced Publications
- Index
- Formal Interpretation [Go to Page]