Last Updated Fri, 05/24/2024 - 18:18
Basic page
… database contains three incidents in which excess hydrogen was unintentionally introduced into an anaerobic … chamber in a laboratory setting. The combination of hydrogen, air, and an ignition source proved to be extremely …
Last Updated Mon, 06/23/2025 - 16:54
FAQ
… Because a small spark can ignite hydrogen-air mixtures, precautions such as using … systems should be properly purged and isolated from the hydrogen source prior to the start of work. In addition, the … ISO 15916 - Basic considerations for the safety of hydrogen systems States that: “the use of spark free tools is …
Last Updated Fri, 06/07/2024 - 00:50
HyARC Data Page
… Existing and planned hydrogen fueling stations in the U.S. are available to view … of operation, and payment method. Existing and planned hydrogen fueling stations in the state of California are … station development and operational status. … U.S. Hydrogen Fueling Stations …
Last Updated Wed, 04/23/2025 - 18:26
Document Library
… cloud explosion (VCE) tests with both propane and lean hydrogen mixtures. BakerRisk’s Deflagration Load Generator (DLG) test rig was used to perform the tests. The DLG test rig was designed primarily to produce centrally-peaked blast …
Last Updated Fri, 06/07/2024 - 00:23
HyARC Data Page
… Merchant Hydrogen Production in Europe Contains data on hydrogen production, in cubic meters, cubic feet, … plans to provide a more recent update. … Merchant Hydrogen Production in Europe …
Last Updated Thu, 10/17/2024 - 18:36
Fuel Cell Codes and Standards
… Presents design guidelines for hydrogen vent systems for gaseous and liquid hydrogen installations at consumer sites, and provides … and maintain hydrogen vent systems. … The 4th edition was published in 2024,and is available at www.cganet.com … …
Last Updated Wed, 07/16/2025 - 15:28
FAQ
… resolution is better with heavier, denser materials. Since hydrogen is the least dense gas, the response is much less … an MFC be relied on to provide a leak-tight seal against hydrogen. Further, MFCs are not accurate if the gas has other … 830 … 815 … 787 … 882 … Does the HSP have experience with hydrogen/oxygen flow control devices (i.e., mass flow …
Last Updated Tue, 07/15/2025 - 16:19
FAQ
… better standards or documented best practices for larger hydrogen storage quantities than those in NFPA 2? … Hydrogen Storage Separation Distances …
Last Updated Wed, 04/23/2025 - 18:46
Document Library
… Quenching limits of hydrogen diffusion flames on small burners were observed. … for a hydrogen flame at a 6 mm leaky compression fitting was found to be 28 g/s. This limit was independent of supply pressure (up to 131 bar) and about …
Last Updated Mon, 07/14/2025 - 15:18
FAQ
… Systems with a specific SIL rating are often used on hydrogen systems. The hazard analysis provides guidance as to … and consequence of occurrence of a given hazard. Hydrogen equipment may be provided with different SIL levels … Systems (SIS) i.e., SIL-1 or higher rated systems on hydrogen systems? … Use of Safety Instrumented Systems (SIS) …
Last Updated Mon, 02/03/2025 - 15:31
Fuel Cell Codes and Standards
… packaging, transportation and storage of compressed hydrogen dispenser for vehicles. This standard is applicable to compressed hydrogen dispensers which have a rated working pressure of not more than 70 MPa for hydrogen refueling stations of hydrogen energy vehicle … …
Last Updated Mon, 07/14/2025 - 15:37
FAQ
… with national and local standards such as NFPA 2, Hydrogen Technologies Code. The nature of a trailer filling … … 2051 … What are general considerations for gaseous hydrogen tube trailer filling operation siting and safety features to consider? The hydrogen would be supplied by upstream compressors …
Last Updated Tue, 07/15/2025 - 15:38
FAQ
… has been done for mine explosions in the U.S. For a hydrogen-air mixture inside an enclosure, it is theoretically … maximum blast pressure, and/or extinguishing the flame for hydrogen or mixtures containing hydrogen). However, the HSP is not aware of any such system …
Last Updated Mon, 06/03/2024 - 22:02
Calculator Tools
… do simple conversions between four popular phase points of hydrogen: liquid at boiling point (-252.87°C at 1 atm). gas … m³ Convert Conversion Factor: 1.00 Conversion Result: … Hydrogen Conversions Calculator …
Last Updated Wed, 07/09/2025 - 15:19
FAQ
… Nitrogen/helium blends are frequently used to leak test hydrogen systems. … 2089 … 2101 … 2102 … Is 'sniffer … industry, a viable leak detection technique in the Hydrogen context? … Nitrogen/helium blends for leak detection in hydrogen systems …
Last Updated Tue, 07/15/2025 - 15:03
FAQ
… The vaporization occurs within a closed system and only hydrogen is present. No air enters the system and the volume … from the LH2 tank is replaced with lower density gaseous hydrogen. … 864 … 893 … During vaporization of LH2, is a … the process (whether in the tank or as it is vaporized)? … Hydrogen Vaporization Pressure …
Last Updated Tue, 07/15/2025 - 15:59
FAQ
… water electrolysis explosions. In the LL article that was updated in 2017, the technology described employs a … together within a bipolar electrolysis cell stack. Product hydrogen with KOH solution rises into an overhead degassing … mix. Slight differences in pressure between the oxygen and hydrogen sides of the cell are enough to permit crossover of …
Last Updated Wed, 07/23/2025 - 22:37
Safety Culture Case Studies
… A manufacturing plant was struggling with their relationships with the … significant noise at a decibel level and frequency that was very irritating beyond the fence line. … One Earth Day, … plant manager explained that it happened when the gas rate was high. The neighbor then asked the same question about …
Last Updated Mon, 06/23/2025 - 16:35
FAQ
… 2 - 2023, paragraph 10.6.3.5 states, "The use of hose in a hydrogen dispensing system shall be limited to vehicle … the regulatory requirements for “drop and swap” storage at hydrogen refueling stations? NFPA 2 is clear that no flexible … to the tube trailers. … Regulatory Requirements for Hydrogen Refueling Stations. …
Last Updated Fri, 10/18/2024 - 15:37
Fuel Cell Codes and Standards
… horizontal) intended for above ground storage of liquid hydrogen. This publication applies to liquid hydrogen storage tanks with maximum allowable working … or emergency response information. … The 4th edition was published in 2024, and is available at www.cganet.org … …
