HIAD events | Clean Hydrogen Knowledge Hub

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01/01/1950 - 31/12/1974
United States

Fire on a LH2 tank under maintenance

Event ID: 328
Quality: 3
Application: Non-road vehicles
Component involved: PRD (burst disc)
Hydrogen supply chain stage: Hydrogen as fuel
Nature of the consequences: fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 30/10/2025

01/01/1950 - 31/12/1974
United States

Fire on a LH2 cryostat

Event ID: 327
Quality: 3
Application: Non-road vehicles
Component involved: cryogenic vessel
Hydrogen supply chain stage: Hydrogen as fuel
Nature of the consequences: fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 30/10/2025

01/01/1950 - 31/12/1974
United States

Explosion during testing of a LH2 pump

Event ID: 326
Quality: 3
Application: Non-road vehicles
Component involved: cryogenic pump
Hydrogen supply chain stage: Hydrogen as fuel
Nature of the consequences: explosion followed by a fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 30/10/2025

01/01/1950 - 31/12/1974
United States

Explosion in a LH2 container

Event ID: 325
Quality: 2
Application: Laboratory / R&D
Component involved: cryogenic vessel
Hydrogen supply chain stage: Hydrogen as fuel
Nature of the consequences: explosion
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 30/10/2025

26/09/1997
United Kingdom

Release from LH2 hydrogen storage

Event ID: 324
Quality: 3
Application: Electrical, electronics and micro-electronics industry
Component involved: PRD (valve)
Hydrogen supply chain stage: hydrogen storage
Nature of the consequences: leak no ignition
Classification of the physical effects: Unignited Hydrogen Release
Date entry in HIAD: 28/02/2009

01/01/1950 - 31/12/1974
United States

LH2 release and explosion from a failed weld

Event ID: 323
Quality: 3
Application: Non-road vehicles
Component involved: piping (weld)
Hydrogen supply chain stage: Hydrogen as fuel
Nature of the consequences: explosion
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 30/10/2025

01/01/1950 - 31/12/1974
United States

Leak from a cryogenic tank

Event ID: 322
Quality: 3
Application: Non-road vehicles
Component involved: flange (bolts)
Hydrogen supply chain stage: hydrogen storage
Nature of the consequences: leak no ignition
Classification of the physical effects: Unignited Hydrogen Release
Date entry in HIAD: 30/10/2025

10/12/2001
United Kingdom

Explosion from unintentional hydrogen production

Event ID: 321
Quality: 2
Application: Chemical industry
Component involved: chemical storage tank
Hydrogen supply chain stage: Unintended hydrogen production - chemical reaction
Nature of the consequences: explosion
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 28/02/2009

01/01/1950 - 31/12/1974
United States

Explosion in a LH2 tank

Event ID: 320
Quality: 3
Application: Non-road vehicles
Component involved: cryogenic vessel
Hydrogen supply chain stage: Hydrogen as fuel
Nature of the consequences: explosion
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 30/10/2025

23/11/2007
United Kingdom

Syngas fire at a shift catalyst reactor

Event ID: 319
Quality: 2
Application: Chemical industry
Component involved: flange (gasket)
Hydrogen supply chain stage: Hydrogen as feedstock
Nature of the consequences: fire
Classification of the physical effects: Hydrogen Release and Ignition
Date entry in HIAD: 28/02/2009