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Home | Standards & Codes | Energy | Gas Equipment | Natural Gas and Propane Vehicle Fuel Systems and Industrial Engines | CNG FUEL INSPECTOR RESOURCE PACKAGE
CNG FUEL INSPECTOR RESOURCE PACKAGE - Consists of CSA/ANSI NGV 1-2017, Compressed natural gas vehicle (NGV) fueling connection devices; ANSI PRD 1-2013, Pressure relief devices for natural gas vehicle (NGV) fuel containers; CSA/ANSI NGV 2-2016, Compressed natural gas vehicle fuel containers; ANSI NGV 3.1-2014/CSA 12.3-2014, Fuel system components for compressed natural gas powered vehicles; SPE-2.1 SERIES-18 - Best practices for defueling, decommissioning, and disposal of compressed natural gas vehicle fuel containers and liquefied natural gas vehicle fuel tanks and CSA/ANSI NGV 6.1-2018, Compressed natural gas (CNG) fuel storage and delivery systems for road vehicles
Compressed Natural Gas (CNG) Fuel System Inspector Certification
Certified Natural Gas (CNG) Cylinder Inspection - PASS / FAIL Labels for use by CNG Inspectors to identify test status of a CNG cylinder.
The CNG Fuel Inspector Resource Package is a collection of relevant CSA Natural Gas Vehicle (NGV) standards including connection devices, pressure relief devices and fuel containers.
This standard is being developed for agencies in North America to use for examination, testing and certification of compressed Natural Gas Vehicle (NGV) fueling nozzles and receptacles used in NGV fueling systems, and not to the systems themselves. The American Gas Association (A.G.A.) Requirements for Natural Gas Refueling Connection Devices (No. 1-90) and Canadian Gas Association Certification Requirement for NGV Nozzles and Receptacles (Draft CR 90-005) provided a basis for this standard.
This standard applies to newly produced compressed Natural Gas Vehicle (NGV) fueling connection devices constructed entirely of new, unused parts and materials. It covers receptacle and protective caps (mounted on vehicle), nozzles, and three-way valves. It applies to devices with standardized mating components. In addition, it applies to devices which both prevent natural gas vehicles from being fueled by dispenser stations with service pressures higher than the vehicle, and allow natural gas vehicles to be fueled by dispenser stations with service pressures equal to or lower than the vehicle fuel system service pressure.
This standard establishes minimum requirements for pressure relief devices intended for use on fuel containers that comply with ANSI/CSA NGV2, Compressed Natural Gas Vehicle (NGV) Fuel Containers, FMVSS 304, Federal Motor Vehicle Safety Standards, 49 CFR Part 571.304, Compressed Natural Gas Fuel Container Integrity, CSA B51, Part 2, High Pressure Cylinders for On-Board Storage of Natural Gas as a Fuel for Automotive Vehicles and/or ISO 11439 Gas Cylinders - High Pressure Cylinders for the Onboard Storage of Natural Gas as a Fuel for Automotive Vehicles.
The standard represents a standard for safe operation, substantial and durable construction and performance testing of pressure relief devices (PRD) for natural gas vehicle (NGV) fuel containers, for the on-board storage of compressed natural gas for vehicle operation within specified limitations. It is based on proven engineering principles, research and the combined expertise of gas utilities, manufacturers, users, and others having specialized experience.
First published in 1995, this is the third edition of ANSI NGV 3.1 - CSA 12.3, Fuel System Components for Compressed Natural Gas Powered Vehicles. It establishes requirements for newly produced compressed natural gas fuel system components, intended for use on natural gas powered vehicles.
Highlights of the standard includes detailed and informative Annexes, a clause that list all fuel system components, and an emphasis on the pressure containment, performance and safety characteristics of specified components. The standard also applies to components downstream of the first stage of pressure reduction with a working pressure designated by the manufacturer in kPa (psi). In the case of conflict between this standard and Federal, Provincial, State or local requirements, the government requirements are to take precedence.
CNG cylinders are pressurized, which means users must take special precautions when it comes to proper maintenance, replacement and disposal. A cylinder can be safely used until its expiration date as marked on the cylinder label provided there is no damage, corrosion, or other issues with the tank. Keeping cylinders in use after the expiration date or operating damaged tanks can have serious safety consequences.
CSA Group has developed a "best practices" document - CSA EXP2.1 Best Practice Defueling, Decommissioning, and Disposal of Compressed Natural Gas Vehicle Fuel Containers to help address the safety issues associated with removing CNG fuel containers from circulation.
CSA EXP2.1 is available in PDF or new ePub format - accessible on mobile devices and additional features such as bookmarking and the ability to email short sections.
This standard provides guidance for safe operation, substantial and durable construction and performance testing of containers for the on-board storage of compressed natural gas for vehicle operation within specified limitations. It is based on engineering principles, research and the combined expertise of gas utilities, manufacturers, users, and others having specialized experience.
The standard contains requirements for the material, design, manufacture and testing of serially produced, refillable Type NGV 2 containers intended only for the storage of compressed natural gas for vehicle operation. Users of this American National Standard are advised that the devices/products/activities within its scope may be subject to regulation at the federal, state, or local levels. Users are strongly urged to investigate this possibility through appropriate channels. In the event of a conflict with this standard, the federal, state, or local regulations should be followed.