Event
- Event ID
- 292
- Quality
- Description
A driver was making a bulk hydrogen delivery at a customer site. The 25 inches long (ca. 7 m) stainless steel transfer hose leaked. The leak was in the centre of the hose.
- Event Initiating system
- Classification of the physical effects
- Unignited Hydrogen Release
- Nature of the consequences
- release, no ignition
- Macro-region
- North America
- Country
- United States
- Date
- Component involved
- hose (trailer)
- Failure mode
- leak
- Initiating cause
- unknown
- Root causes
- Date entry in HIAD
- 30/08/2025
Facility
- Application
- Hydrogen transport and distribution
- Sub-application
- H2 delivery to customers
- Hydrogen supply chain stage
- All components affected
CGH2 tube trailer
- Process temperature range [C]
- ambient temperature (-50°C to +50°C)
- Process pressure range [MPa]
- medium to high pressure (10 to 50 MPa)
- Location type
- Open
- Location
- industrial area
- Operational condition
- Description of the facility/unit/process/substances
According to PHMSA, the tube trailer transport capacity was 300 kg
Emergency & Consequences
- Number of fatalities
- 0
- Number of injured persons
- 0
- Post-event summary
PHMSA reports only the loss of 0.25 kg of hydrogen
In-depth data
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Released amount (kg)
- 0.25
- Release temperature [°C]
- 25
- Probable IGNITION SOURCE
References
- Sources categories
- PHMSA
- Reference & weblink
Incident E-2011060590 of the US Pipeline and Hazardous Materials Safety Administration PHMSA:
https://portal.phmsa.dot.gov/analytics/saw.dll?Portalpages&PortalPath=%2Fshared%2FPublic%20Website%20Pages%2F_portal%2FHazmat%20Incident%20Report%20Search
(accessed September 2024)
