Last Updated Fri, 04/18/2025 - 19:40
HIAD Event
… A road tanker was being loaded with liquid hydrogen from a 15,000 gallon storage tank, when fire broke … ignition was not immediate after rupture. … Release from a Hydrogen Tank During Loading (541) …
Last Updated Tue, 07/15/2025 - 15:31
FAQ
… If liquid hydrogen usage is sufficiently high at the fueling station, … through system design, but where needed, the boil-off hydrogen along with any other hydrogen released must be vented through a local vent stack …
Last Updated Fri, 10/25/2024 - 20:06
Fuel Cell Codes and Standards
… SAE J2601 establishes the protocol and process limits for hydrogen fueling of vehicles with total volume capacities … and initial pressure in the vehicle’s compressed hydrogen storage system. SAE J2601 establishes standard … with SAE J2799. An important factor in the performance of hydrogen fueling is the station’s dispensing equipment …
Last Updated Sat, 10/26/2024 - 18:37
Fuel Cell Codes and Standards
… and tanks. … Latest edition 2023. All references to hydrogen are being withdrawn and transferred to NFPA 2. … … Compressed Gases and Cryogenic Fluids Code Chapter 10: Gas Hydrogen Systems …
Last Updated Fri, 10/18/2024 - 20:40
Fuel Cell Codes and Standards
… provide cleaning requirements for equipment used in hydrogen vehicle fueling applications. This position … and the steps that may be taken to manage the solid, liquid, and transitional impurities that can be introduced into a hydrogen supply system during the fabrication and …
Last Updated Wed, 03/26/2025 - 19:03
Fuel Cell Codes and Standards
… cryogenic reciprocating pumps and pump installations for hydrogen and LNG service. The information contained in this … • Cryogenic reciprocating pumps and installations for liquid oxygen, argon, and nitrogen, which are covered in CGA … for Oxygen, Argon, and Nitrogen; • Centrifugal liquid oxygen pumps, which are covered in CGA G-4.7, …
Last Updated Mon, 07/21/2025 - 14:48
FAQ
… Fire Code and NFPA 2 apply to non-transportation use of hydrogen. These are maturing quickly, with NFPA 2 currently … fuel tanks, fueling connections, and filling protocols. Liquid hydrogen transfer is well proven and established for …
Last Updated Thu, 06/26/2025 - 16:07
FAQ
… Flame arrestors can be installed on hydrogen gas vents. The purpose of a flame arrestor is to … For example, a flame arrestor on a vent stack serving a liquid hydrogen system might get cold and build up ice, thereby …
Last Updated Thu, 06/19/2025 - 14:53
FAQ
… The water vapor cloud formed from venting cold hydrogen gas from a liquid hydrogen tank will vary in size depending upon atmospheric …
Last Updated Thu, 06/26/2025 - 16:20
FAQ
… are extensively used successfully and safely on nearly all liquid hydrogen road tankers as well as a supplemental means to vent … Could you provide the standard that specifies this? … Hydrogen Vent Flappers …
Last Updated Tue, 06/24/2025 - 19:23
FAQ
… was written for use in the process industries in gas and liquid service. CGA S1.3, Pressure Relief Device … 871 … 1000 … 1001 … 1002 … For fixed equipment in gaseous hydrogen storage service, should we use the API or the CGA method to size a relief device? … Sizing Hydrogen Pressure Relief Devices …
Last Updated Fri, 10/04/2024 - 18:56
Fuel Cell Codes and Standards
… marking, and testing of serially produced, refillable hydrogen fuel storage containers intended only for the storage of compressed hydrogen gas or liquid hydrogen fuel for aviation applications. Excludes …
Last Updated Tue, 07/15/2025 - 15:25
FAQ
… but as a precaution, any material that could be exposed to liquid air must be compatible for both oxygen and cryogenic … formation due to failure of the insulation on a liquefied hydrogen system and what measures can be taken to minimize the consequences of those risks? … Hydrogen Storage Vessel Insulation …
Last Updated Sun, 03/30/2025 - 15:10
Fuel Cell Codes and Standards
… … Published in 2023 and available through ASME. For hydrogen applications see reference to “Project Team on Hydrogen Tanks” in Sections VIII, Division 3, X and XII …
Last Updated Sat, 06/01/2024 - 08:41
Basic page
… B31.1, Power Piping ASME B31.3, Process Piping ASME B31.12 Hydrogen Piping and Pipelines Considerations for code … the most logical choice. All three codes are suitable for liquid and gaseous hydrogen at pressures 15,000 psi (100 MPa) and higher. For …
Last Updated Fri, 10/18/2024 - 15:34
Fuel Cell Codes and Standards
… recommended for piping systems for gaseous (Type I) or liquid (Type II) hydrogen. The standard addresses both low and high pressure hydrogen piping systems onsite from the point where hydrogen …
Last Updated Sun, 11/03/2024 - 19:37
Fuel Cell Codes and Standards
… and non-public fueling stations that dispense gaseous hydrogen to light duty road vehicles (e.g. fuel cell electric … of hydrogen by pipeline, trucked in gaseous and/or liquid hydrogen, or metal hydride storage trailers; — on-site … hydrogen generators using fuel processing technologies; — liquid hydrogen storage; — hydrogen purification systems, as …
Last Updated Wed, 10/16/2024 - 18:19
Fuel Cell Codes and Standards
… to consider medium and heavy-duty fueling as well as liquid and cryo-compressed. Available at www.shop.csa.ca … … in March 2020. Available at www.shop.csa.ca … CSA HGV4.1 Hydrogen Dispensers …
Last Updated Mon, 06/30/2025 - 15:32
FAQ
… When it is necessary or desirable to work on a part of a hydrogen system while another part of the system remains in … (vent) valve is open. This arrangement assures that any hydrogen leaking through the valve on the pressurized side … during the hazard analysis. Important variables include liquid or gas service, pressures, and procedures for …
Last Updated Mon, 06/23/2025 - 16:47
FAQ
… practices (RAGAGEP) for employing a purge into a hydrogen vent stack is that inerting is not generally used. … (carbon or stainless steel pipe). CGA G-5.5, Standard for Hydrogen Vent Systems, Section 6.2 states that “Hydrogen vent … systems within the scope of this publication (gaseous and liquid hydrogen at user sites) are unlikely to sustain …
