Last Updated Thu, 07/03/2025 - 14:50
FAQ
… a fire at the vent. Is there any code suggesting that for hydrogen vent mesh? … Hydrogen vent mesh code suggestions …
Last Updated Mon, 07/07/2025 - 15:58
FAQ
… is not acceptable. … 906 … 2071 … 920 … In the past, it was acceptable to vent small amounts of hydrogen (e.g. compressor seal vents) to the atmosphere – is this still the case? … Venting small amounts of hydrogen to the atmosphere …
Last Updated Tue, 06/24/2025 - 19:41
FAQ
… code. Note that if the original proof test of the system was not high enough meet the requirement for the new service, … B31 piping code should be used for changing the rating of hydrogen piping systems? … Changing the Rating of Hydrogen Piping Systems …
Last Updated Thu, 06/19/2025 - 15:58
FAQ
… Off gassing of hydrogen from battery sources depends on battery chemistry, … of batteries present a greater hazard with regards to hydrogen? What safeguards are recommended to prevent and mitigate fire hazards? … Hydrogen Off Gassing from Battery Charging Room …
Last Updated Tue, 06/17/2025 - 19:36
FAQ
… Several concerns with glycols are: 1) Freezing in a liquid hydrogen system that could lead to safety issues such as … lead to blockage of lines and instrumentation. 3) Off-spec hydrogen if not well cleaned from the lines, vessels, … order-of-magnitude lower than what is typically used for hydrogen piping. This safety concern can be mitigated by …
Last Updated Tue, 06/24/2025 - 20:59
FAQ
… is not recommended. Normally GH2 is not flared for most hydrogen equipment as the piping diameters are smaller. The … in diameter. Flaring is a deliberate ignition of a hydrogen stream. If the hydrogen stream is to be ignited, the timing of the ignition …
Last Updated Fri, 04/18/2025 - 19:40
HIAD Event
… up very quickly with isolation of the section. Pipeline was depressurized within the hour. The pipeline was completely emptied and purged with nitrogen.A security … in the night.No significant impact on customers. … Hydrogen Release from a Hydrogen Pipeline (478) …
Last Updated Mon, 07/21/2025 - 14:45
FAQ
… Hydrogen gas storage and fuel cell systems are typically … to minimize the time spent indoors for these activities. Hydrogen vehicles maintained in a facility should be provided … Is the bus's H2 system a completely contained system? … Hydrogen Bus Indoor Safety …
Last Updated Mon, 06/02/2025 - 21:23
Document Library
… Hydrogen liquid and gas properties and risks. … Taking the Lead in Safety • Working with Hydrogen …
Last Updated Fri, 06/07/2024 - 00:01
HyARC Data Page
… Hydrogen Compressibility at different temperatures and pressures. … Hydrogen Compressibility at different temperatures and …
Last Updated Fri, 06/07/2024 - 00:02
HyARC Data Page
… Hydrogen Density at different temperatures and pressures. … Hydrogen Density at different temperatures and pressures …
Last Updated Fri, 06/07/2024 - 00:03
HyARC Data Page
… Hydrogen Enthalpy at different temperatures and pressures. … Hydrogen Enthalpy at different temperatures and pressures …
Last Updated Fri, 06/07/2024 - 00:03
HyARC Data Page
… Hydrogen Entropy at different temperatures and pressures. … Hydrogen Entropy at different temperatures and pressures …
Last Updated Fri, 06/07/2024 - 00:16
HyARC Data Page
… Hydrogen Viscosity at different temperatures and pressures. … Hydrogen Viscosity at different temperatures and pressures …
Last Updated Fri, 06/07/2024 - 00:23
HyARC Data Page
… Properties of Hydrogen at Normal Boiling Point. … Properties of Hydrogen at Normal Boiling Point …
Last Updated Fri, 04/18/2025 - 19:40
HIAD Event
… The hydrogen leak occurred on a lorry travelling on a motorway. According to Highways England the vehicle was carrying nine cylinders of gas, one of which had a crack and was leaking. The only way to allow it to safely disperse was …
Last Updated Fri, 06/07/2024 - 00:46
HyARC Data Page
… Standard Financial Inputs for Hydrogen Analysis (based on H2A Guidelines). … Standard Financial Inputs for Hydrogen Analysis …
Last Updated Tue, 06/24/2025 - 19:23
FAQ
… Pressure-relieving Devices Part I - Sizing and Selection, was written for use in the process industries in gas and … 3-Stationary Storage Containers for Compressed Gases was written for fixed equipment in gas service. Which … 871 … 1000 … 1001 … 1002 … For fixed equipment in gaseous hydrogen storage service, should we use the API or the CGA …
Last Updated Mon, 06/02/2025 - 21:34
Document Library
… and petroleum refining sites often ask whether unconfined hydrogen vapor cloud explosions (VCEs) can actually occur. … assessment (QRA). While it is generally recognized that a hydrogen release within a process enclosure could lead to an explosion, the potential for an external hydrogen release to cause a VCE is not as widely recognized …
Last Updated Mon, 06/23/2025 - 16:15
FAQ
… vary, so the AHJ should be consulted, but NFPA 2:2023, Hydrogen Technologies Code, Chapter 13 has requirements for installation of hydrogen generators up to 100 kg H2/h. Section 13.3.1 General … electrolysis systems are to be listed to ISO 22734:2019, Hydrogen Generators Using Water Electrolysis - Industrial, …
