Last Updated Wed, 07/09/2025 - 14:48
FAQ
… this market. … 2089 … 2093 … 2094 … 2095 … Do heavy-duty hydrogen fuel cell trucks have a requirement to detect hydrogen leaks with sensors near their fuel cell system and/or near their hydrogen storage tanks? … Hydrogen leak detection on …
Last Updated Fri, 01/31/2025 - 17:09
Fuel Cell Codes and Standards
… This standard specifies the categories of hydrogen systems, the basic characteristics of hydrogen, the risk factors of hydrogen systems, the basic requirements for risk control. …
Last Updated Mon, 06/02/2025 - 21:34
Document Library
… Hydrogen is a key energy carrier for modern society. The breaking of the hydrogen bonds within traditional hydrocarbon molecules has … of an internal research effort. The goal of these tests was to better understand the VCE hazards associated with very …
Last Updated Mon, 07/14/2025 - 15:32
FAQ
… … 2118 … 874 … What risks are there with co-locating hydrogen fueling, petrol fueling, and electric vehicle … example, does the potential overlap of hazardous areas of hydrogen and petrol introduce any unique mitigations? … Co-locating hydrogen, petrol, and EV fueling stations …
Last Updated Thu, 06/26/2025 - 16:03
FAQ
… generally vent with a horizontal discharge which means a hydrogen cloud closer to the ground and higher radiation … if the vent is at high velocity. This can propel the hydrogen even closer to the ground than anticipated. If … the vent flow will be directed further upwards. CGA G-5.5 Hydrogen Vent Systems shows recommended orientations of vent …
Last Updated Fri, 10/18/2024 - 15:34
Fuel Cell Codes and Standards
… 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 The standard addresses both low and high pressure hydrogen piping systems onsite from the point where hydrogen … [Superseded material in CGA G-5.8] … The 6th edition was published in 2019, and is available at www.cganet.org … …
Last Updated Thu, 11/14/2024 - 16:38
Fuel Cell Codes and Standards
… and maintenance, and for certification of Gaseous Hydrogen Storage Systems (GHSS) in general aviation. This … defines guidelines for safe refueling operation of gaseous hydrogen for aircraft. This document does not address airport … operation. … Work in progress. … SAE AS 7373 Gaseous Hydrogen for Storage for General Aviation …
Last Updated Tue, 07/15/2025 - 16:14
FAQ
… The Global Asset Protection Services (GAPS) standard was written 20 years ago for property loss prevention at … informed approach as described within Annex E of NFPA 2 was applied to GH2 separation distances in the 2011 edition. … the 2023 edition. These distances are based primarily on hydrogen piping releases as a function of pipe diameter and …
Last Updated Thu, 09/04/2025 - 16:28
FAQ
… to be used, although the ISO standard does not yet include hydrogen in its scope and is for CNG tanks only. Commercial … by a certified technician (CGA C-6.4 or similar). … Hydrogen Tank Inspection Frequency …
Last Updated Wed, 04/23/2025 - 18:42
Document Library
… PNNL’s Hydrogen Safety Program Why Hydrogen Fuel? Hydrogen – A Clean, Flexible Energy Carrier Why Fuel Cells? …
Last Updated Fri, 11/08/2024 - 16:26
Fuel Cell Codes and Standards
… Contact: Adam Maslowski, ASME … ASME B31.12 Standard on Hydrogen Piping and Pipelines contains requirements for piping in gaseous and liquid hydrogen service and pipelines in gaseous hydrogen service. The general requirements section covers …
Last Updated Fri, 06/07/2024 - 00:21
HyARC Data Page
… Contains data on location, capacity, hydrogen source, and customers for individual plants. Please … plans to provide a more recent update. … Merchant Hydrogen Plant Capacities in North America …
Last Updated Wed, 04/23/2025 - 18:35
Document Library
… to the questions that were raised during the Center for Hydrogen Safety February 7, 2023 webinar. … Liquid Hydrogen: Safety and Design Considerations Webinar Q&A …
Last Updated Wed, 04/23/2025 - 18:35
Document Library
… to the questions that were raised during the Center for Hydrogen Safety April 27, 2023 webinar. The Q&As are sorted … questions were deleted from the original list. … Gaseous Hydrogen Safety Considerations CHS Webinar Q&A …
Last Updated Mon, 06/02/2025 - 21:20
Document Library
… that separation or safety distances for pressurised hydrogen storage can be reduced by the inclusion of walls or … protection from thermal radiation and blast overpressure was measured together with the propensity for the thermal … to be reflected back to the source of the leak. The work was primarily focused on compressed H2 storage for stationary …
Last Updated Tue, 06/17/2025 - 19:14
FAQ
… low tank pressures, these trapped pockets of pressurized hydrogen gas can “pop out” the interlocking plastic material … have only been seen to occur in service where the Tg was determined to be significantly lower than 85C. … What are … when evaluating overtemperature scenarios for gaseous hydrogen fills of Type 4 cylinders? … Overtemperature …
Last Updated Fri, 06/07/2024 - 00:21
HyARC Data Page
… Contains data on location, capacity, hydrogen source, and customers for individual plants in … plans to provide a more recent update. … Merchant Hydrogen Plant Capacities in the Rest of the World …
Last Updated Fri, 04/18/2025 - 19:40
HIAD Event
… 3.5 m from the ground The gaseous mixture composed of hydrogen, methane and hydrogen sulfide (density: 0.6) was released to the atmosphere. The operator evacuated a … air returned to satisfactory level. The emergency plan was terminated. Public firefighters are on site but did not …
Last Updated Mon, 10/14/2024 - 18:08
Fuel Cell Codes and Standards
… Mark Duda … This standard applies to assemblies of hydrogen equipment integrated into an enclosure such as a … EHE contains internal compartments. It applies to enclosed hydrogen equipment intended for stationary outdoor … It primarily addresses the safety requirements related to hydrogen & its use inside an enclosure. A national standard …
Last Updated Sat, 11/23/2024 - 14:07
Fuel Cell Codes and Standards
… test equipment, sample requirements, test procedures, hydrogen embrittlement sensitivity evaluation and test report … of the susceptibility of metallic materials to hydrogen gas embrittlement. This Standard is applicable to the evaluation of hydrogen embrittlement sensitivity of metallic materials. … …
