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NFPA 55: Compressed Gases and Cryogenic Fluids Code, 2013
- Important Notices and Disclaimers
- Additional Notices and Disclaimers
- Chapter 1 Administration [Go to Page]
- 1.1 Scope
- 1.2 Purpose
- 1.3 Application
- 1.4 Retroactivity
- 1.5 Equivalency
- 1.6 Units and Formulas
- 1.7 Enforcement
- Chapter 2 Referenced Publications [Go to Page]
- 2.1 General
- 2.2 NFPA Publications
- 2.3 Other Publications
- 2.4 References for Extracts in Mandatory Sections
- Chapter 3 Definitions [Go to Page]
- 3.1 General
- 3.2 NFPA Official Definitions
- 3.3 General Definitions
- Chapter 4 General Requirements [Go to Page]
- 4.1 Permits
- 4.2 Emergency Plan
- 4.3 Facility Closure
- 4.4 Out-of-Service Stationary Bulk Gas Systems
- 4.5 Management Plan and Hazardous Materials Documentation
- 4.6 Release of Hazardous Materials
- 4.7 Personnel Training
- 4.8 Fire Department Liaison
- 4.9 Ignition Source Controls
- 4.10 Signs
- 4.11 Protection from Vehicular Damage
- 4.12 Building Construction Materials
- Chapter 5 Classification of Hazards [Go to Page]
- 5.1 Hazardous Materials Classification
- Chapter 6 Building-Related Controls [Go to Page]
- 6.1 General
- 6.2 Control Areas
- 6.3 Occupancy Protection Levels
- 6.4 Gas Rooms
- 6.5 Detached Buildings
- 6.6 Weather Protection
- 6.7 Electrical Equipment
- 6.8 Employee Alarm System
- 6.9 Explosion Control
- 6.10 Fire Protection Systems
- 6.11 Lighting
- 6.12 Hazard Identification Signs
- 6.13 Spill Control, Drainage, and Secondary Containment
- 6.14 Shelving
- 6.15 Vent Pipe Termination
- 6.16 Ventilation
- 6.17 Gas Cabinets
- 6.18 Exhausted Enclosures
- 6.19 Source Valve
- Chapter 7 Compressed Gases [Go to Page]
- 7.1 General
- 7.2 Storage
- 7.3 Use and Handling
- 7.4 Medical Gas Systems
- 7.5 Corrosive Gases
- 7.6 Flammable Gases
- 7.7 Oxidizing Gases
- 7.8 Pyrophoric Gases
- 7.9 Toxic and Highly Toxic Gases
- 7.10 Unstable Reactive Gases (Nondetonable)
- Chapter 8 Cryogenic Fluids [Go to Page]
- 8.1 General
- 8.2 Containers — Design, Construction, and Maintenance
- 8.3 Pressure Relief Vent Piping
- 8.4 Marking
- 8.5 Medical Cryogenic Systems
- 8.6 Security
- 8.7 Separation from Hazardous Conditions
- 8.8 Electrical Wiring and Equipment
- 8.9 Service and Repair
- 8.10 Unauthorized Use
- 8.11 Leaks, Damage, and Corrosion
- 8.12 Lighting
- 8.13 Storage
- 8.14 Use and Handling
- Chapter 9 Bulk Oxygen Systems [Go to Page]
- 9.1 General
- 9.2 Materials of Construction
- 9.3 Location of Bulk Oxygen Systems
- 9.4 System Fabrication
- 9.5 Inspection
- Chapter 10 Bulk Hydrogen Compressed Gas Systems [Go to Page]
- 10.1 Applicability
- 10.2 General
- 10.3 Outdoor Bulk Hydrogen Compressed Gas Systems
- 10.4 Underground Bulk Hydrogen Compressed Gas Systems
- 10.5 Installation in Vaults Above and Below Ground (Reserved)
- 10.6 Indoor Bulk Hydrogen Compressed Gas Systems
- Chapter 11 Bulk Liquefied Hydrogen Systems [Go to Page]
- 11.1 General
- 11.2 Design of Bulk Liquefied Hydrogen Systems
- 11.3 Location of Bulk Liquefied Hydrogen Systems
- 11.4 Design Considerations at Specific Locations
- 11.5 Cargo Transport Unloading
- Chapter 12 Gas Generation Systems [Go to Page]
- 12.1 General
- 12.2 Corrosive Gases (Reserved)
- 12.3 Flammable Gases — Gaseous
- 12.4 Flammable Gases — Cryogenic (Reserved)
- 12.5 Oxidizing Gases (Reserved)
- 12.6 Other Gases (Reserved)
- 12.7 Pyrophoric Gases (Reserved)
- 12.8 Toxic and Highly Toxic Gases (Reserved)
- 12.9 Unstable Reactive Gases (Reserved)
- Chapter 13 Insulated Liquid Carbon Dioxide Systems [Go to Page]
- 13.1 General
- 13.2 Small Insulated Liquid Carbon Dioxide Indoor Systems
- 13.3 Small Insulated Liquid Carbon Dioxide Outdoor Systems
- 13.4 Large Indoor Insulated Liquid Carbon Dioxide Systems (Reserved)
- 13.5 Large Outdoor Insulated Liquid Carbon Dioxide Systems
- Chapter 14 Storage, Handling, and Use of Ethylene Oxide for Sterilization and Fumigation [Go to Page]
- 14.1 General
- 14.2 Receiving and Unloading Ethylene Oxide Containers
- 14.3 Storage of Ethylene Oxide
- 14.4 Piping Systems
- 14.5 Gas Dispensing Areas
- 14.6 Operations
- 14.7 Electrical Installation
- 14.8 Sterilizer Construction
- 14.9 Disposal and Emissions
- 14.10 Maintenance
- 14.11 Construction
- 14.12 Fire Protection
- Chapter 15 Acetylene Cylinder Charging Plants [Go to Page]
- 15.1 General
- 15.2 Location
- 15.3 Building-Related Controls
- 15.4 Design, Installation, and Testing
- 15.5 Process Operations
- 15.6 Maintenance (Reserved)
- 15.7 Special Problems — Raw Materials
- Annex A Explanatory Material
- Annex B Attended Operations
- Annex C Physical Properties of Hydrogen
- Annex D Significant Properties of Ethylene Oxide
- Annex E Determination of Separation Distances for Bulk Gaseous Hydrogen Systems
- Annex F Sample Ordinance Adopting NFPA 55
- Annex G OSHA Requirements for Hydrogen Systems
- Annex H Explanation of Methodology Utilized to Develop Separation Distances Table 10.3.2.2.1(a), Table 10.3.2.2.1(b), and Table 10.3.2.2.1(c)
- Annex I Informational References
- Index
- Formal Interpretation [Go to Page]
