NFPA 59: Utility LP-Gas Plant Code

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Prevent fires and explosions. Work with up-to-date safety rules for LP-Gas utility gas plants in the 2015 edition of NFPA 59.

Used in conjunction with DOT regulations to construct and maintain LPG plants serving 10 or more customers or used to supply LP-Gas-Air mixtures to utility distribution systems, NFPA 59: Utility LP-Gas Plant Code applies to the design, construction, location, installation, operation, and maintenance of refrigerated and non-refrigerated liquefied petroleum gas utility gas plants. Coverage of liquefied petroleum gas systems at utility gas plants extends to the point where LP-Gas or a mixture of LP-Gas and air is introduced into the utility distribution system.

The 2015 NFPA 59 includes technical changes that impact most users:

  • Expanded coverage of corrosion control and monitoring in Chapter 12 aligns with federal regulations.
  • Revised method for sizing pressure relief devices for propane installations over 300 psig
  • New specific requirements for ventilation in buildings that house LP-Gas operations clarify the purpose and activation of the ventilation system to prevent the accumulation of flammable gas in the building.
  • Updated and clarified LP-Gas vaporizer requirements help ensure their safe installation and operation.

The 2015 edition of NFPA 59 is an essential resource.

Designers, facility owners/operators, and enforcers need NFPA 59 to ensure compliance with 49 CFR Part 192. Update now and stay in compliance. (Softbound, 45 pp., 2015)

NFPA<sup>®</sup> 59 Utility LP-Gas Plant Code 2015 Edition

NFPA® 59 Utility LP-Gas Plant Code 2015 Edition

Chapter 1 Administration
1.1 Scope
1.2 Purpose. (Reserved)
1.3 Nonapplication of Code
1.4 Retroactivity
1.5 Equivalency
1.6 Enforcement
1.7 Pressure Measurement
Chapter 2 Referenced Publications
2.1 General
2.2 NFPA Publications
2.3 Other Publications
2.4 References for Extracts in Mandatory Sections
Chapter 3 Definitions
3.1 General
3.2 NFPA Official Definitions
3.3 General Definitions
Chapter 4 General Requirements
4.1 Personnel Training
4.2 Odorizing Gases
4.3 Acceptance of Equipment
4.4 Damage from Vehicles
4.5 Ignition Source Control
4.6 Lighting
4.7 Fixed Electrical Equipment in Classified Areas
4.8 Construction and Modification Records
Chapter 5 Nonrefrigerated Containers
5.1 Provision for Construction and Original Test of Nonrefrigerated Containers
5.2 Design Pressure and Classification of Nonrefrigerated Containers
5.3 ASME Container Markings
5.4 Location of Nonrefrigerated Containers
5.5 Installation of Nonrefrigerated Storage Containers
5.6 Reinstallation of Nonrefrigerated Containers
5.7 Filling Densities
5.8 Point of Transfer Spacing
Chapter 6 Refrigerated Containers
6.1 Construction and Design of Refrigerated Containers
6.2 Marking on Refrigerated LP-Gas Containers
6.3 Container Installation
6.4 Refrigerated LP-Gas Container Instruments and Controls
6.5 Refrigerated LP-Gas Container Impoundment
6.6 Inspection and Testing of Refrigerated LP-Gas Containers and Systems
6.7 Container Siting
Chapter 7 Piping, Valves, and Equipment
7.1 General
7.2 Container Valves and Accessories
7.3 Filler and Discharge Pipes and Manifolds
7.4 Liquid Level Gauging Device
7.5 Hose Specifications for Nonrefrigerated LP-Gas
7.6 Drips, Pits, and Drains
7.7 Pumps and Compressors
7.8 Pumps and Compressors in Refrigerated LP-Gas Systems
7.9 Protection of Container Accessories
7.10 Transfer Equipment
Chapter 8 Buildings or Structures Housing LP-Gas Distribution Facilities
8.1 Scope
8.2 Separate Structures or Buildings
8.3 Attached Structures or Rooms Within Structures
8.4 Rooms Housing Vaporizers or Mixers
Chapter 9 Vaporizers, Heat Exchangers, and Gas–Air Mixers
9.1 General
9.2 Buildings or Rooms Housing Vaporizers or Gas–Air Mixers
9.3 Vaporizers
9.4 Gas–Air Mixers
9.5 Vaporizer Installation
Chapter 10 Relief Devices
10.1 General
10.2 Nonrefrigerated Container Relief Devices
10.3 Refrigerated Container Relief Devices
10.4 Relief Device Sizing for Refrigerated Containers
10.5 Refrigerated Container Relief Device Sizing for Fire Exposure
10.6 Pressure Relief Valve Discharge Vents
10.7 Vaporizers
10.8 Hydrostatic Relief Valves
Chapter 11 Operations
11.1 General
11.2 Operating Procedures Manuals
11.3 Handling
11.4 Operating Records
Chapter 12 Maintenance
12.1 Retroactivity
12.2 Maintenance Manuals
12.3 Corrosion Protection
12.4 Maintenance of Emergency Shutoff and Check Valves
12.5 Maintenance of Foundations and Supports
12.6 Maintenance of Fire Protection Equipment
12.7 Leakage Surveys
12.8 Auxiliary Power Sources
12.9 Purging Prior to Maintenance
12.10 Maintenance Records
Chapter 13 Fire Protection, Safety, and Security
13.1 General
13.2 Fire and Leak Detection
13.3 Container Protection
13.4 Fire Protection Water Systems
13.5 Fire-Extinguishing and Other Fire Control Equipment
13.6 Maintenance of Fire Protection Equipment
13.7 Personnel Safety
13.8 Security
Annex A Explanatory Material
Annex B Method of Calculating Maximum Liquid Volume That Can Be Placed in a Container at Any Liquid Temperature
Annex C Method of Calculating Maximum Volume of Liquefied Petroleum Gas That Can Be Placed in a Container for Which Length of Fixed Drip Tube Is Set
Annex D Relief Device Sizing
Annex E Sample Ordinance Adopting NFPA 59
Annex F Informational References