NFPA 52 PDF

Highlights

The 2023 edition has been revised to include the following:
Bulk plant requirements extracted from NFPA 59A, Standard for the Production, Storage, and Handling of Liquefied Natural Gas (LNG), have been revised and in most cases are no longer extracted, since these requirements commonly do not apply to NFPA 52 installations.
The terms defueling and manifold have been added as defined terms in Chapter 3 to provide additional clarity throughout NFPA 52.
Container protection requirements have been revised where those requirements referred to ASME containers that utilize pressure relief valves instead of pressure relief devices. NFPA 52 is a reliable reference book for natural gas engine fuel system requirements. Get the resource you need to increase safety and accuracy working with CNG and LNG fuel systems. (Print. 71 pp., 2023)

Table of Contents

NFPA® 52 Vehicular Natural Gas Fuel Systems Code 2023 Edition
Chapter 1 Administration
1.1 Scope.
1.2 Purpose.
1.3 Retroactivity.
1.4 Alternate Provisions.
1.5 Training.
1.6 Units.
1.7 Enforcement.
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 Facility Management
4.1 General.
4.2 Building Construction Materials.
4.3 Qualifications.
4.4 Equipment Security.
4.5 Operations and Maintenance.
4.6 CNG Training.
4.7 LNG Training.
4.8 Special Hazard Requirements.
Chapter 5 Facility Fire Protection
5.1 General.
5.2 CNG Supplemental Requirements.
5.3 LNG Supplemental Requirements.
Chapter 6 Facility Gas Detection, Alarm, and Emergency Shutdown Systems
6.1 General.
6.2 CNG Supplemental Requirements.
6.3 LNG Supplemental Requirements.
Chapter 7 Fuel Quality
7.1 CNG.
7.2 LNG. (Reserved)
Chapter 8 Facility Equipment
8.1 Scope.
8.2 Application.
8.3 General.
8.4 CNG Systems.
Chapter 9 Outdoor Storage
9.1 Scope.
9.2 General. (Reserved)
9.3 CNG Supplemental Requirements.
9.4 LNG Supplemental Requirements.
Chapter 10 Indoor Storage
10.1 Scope.
10.2 General. (Reserved)
10.3 CNG Supplemental Requirements.
10.4 LNG Supplemental Requirements.
Chapter 11 CNG Fueling
11.1 Application.
11.2 General.
11.3 CNG Dispensing.
Chapter 12 Residential CNG Fueling Appliances
12.1 Application.
12.2 System Component Qualifications.
12.3 General Safety Requirements.
12.4 Installation.
12.5 Installation of PRVs.
12.6 Installation of Pressure Gauges.
12.7 Pressure Regulation.
12.8 Piping and Hose.
12.9 Testing.
12.10 Operation.
12.11 Maintenance and Inspection.
Chapter 13 Nonresidential CNG Fueling Appliances
13.1 General.
13.2 Installation.
13.3 Operation.
13.4 Maintenance and Inspection.
Chapter 14 LNG Fueling
14.1 Application.
14.2 General.
14.3 LNG Dispensing.
14.4 LNG Storage.
14.5 Piping Systems and Components.
Chapter 15 Automotive Equipment (Onboard)
15.1 Scope.
15.2 Application.
15.3 General.
15.4 CNG Supplemental Requirements.
15.5 LNG Supplemental Requirements.
Chapter 16 Automotive Fuel and Safety Systems (Onboard)
16.1 Application.
16.2 General.
16.3 CNG Engine Fuel Systems.
16.4 LNG Engine Fuel Systems.
Chapter 17 Installation Requirements for ASME Tanks for LNG
17.1 Application.
17.2 General.
17.3 Containers.
17.4 Container Foundations and Supports.
17.5 Container Installation.
17.6 Automatic Product Retention Valves.
17.7 Inspection.
17.8 Testing and Purging of LNG Containers.
17.9 Piping.
17.10 Container Instrumentation.
17.11 Pressure Gauging and Control.
Chapter 18 Marine Onboard (Reserved)
Chapter 19 Marine Refueling (Reserved)
Annex A Explanatory Material
Annex B Sample Ordinance Adopting NFPA 52
Annex C Pressure Relief Devices (PRDs)
Annex D Informational References