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EVENT
Title
Description
About text formats
Event Initiating system
- Select a value -
Event initiated by a system containing also hydrogen
False-positive
Hydrogen system initiating event
n.a.
Non-Hydrogen system initiating event
Unknown
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Classification of the physical effects
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No Hydrogen Release
Unignited Hydrogen Release
Hydrogen Release and Ignition
Not specified
n.a.
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Nature of the consequences
- Select a value -
explosion
explosion followed by a fire
false alarm
fire
fire followed by an explosion
leak no ignition
n.a.
near miss
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Macro-region
- Select a value -
Europe
North America
South America
Africa
Asia
Oceania
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Country
- None -
Afghanistan
Albania
Algeria
Andorra
Angola
Antigua and Barbuda
Argentina
Armenia
Australia
Austria
Azerbaijan
Bahamas
Bahrain
Bangladesh
Barbados
Belarus
Belgium
Belize
Benin
Bhutan
Bolivia
Bosnia and Herzegovina
Botswana
Brazil
Brunei
Bulgaria
Burkina Faso
Burundi
Cabo Verde
Cambodia
Cameroon
Canada
Central African Republic
Chad
Chile
China
Colombia
Comoros
Congo
Costa Rica
Cote d'ivoir
Croatia
Cuba
Cyprus
Czechia
Democratic Republic of the Congo
Denmark
Djibouti
Dominica
Dominican Republic
Ecuador
Egypt
El Salvador
Equatorial Guinea
Eritrea
Estonia
Eswatini
Ethiopia
European Union
Fiji
Finland
France
Gabon
Georgia
Germany
Ghana
Greece
Grenada
Guatemala
Guinea
Guinea-Bissau
Guyana
Haiti
Holy See
Honduras
Hungary
Iceland
India
Indonesia
Iran
Iraq
Ireland
Israel
Italy
Jamaica
Japan
Jordan
Kazakhstan
Kenya
Kiribati
Kosovo
Kuwait
Kyrgyzstan
Laos
Latvia
Lebanon
Lesotho
Liberia
Libya
Liechtenstein
Lithuania
Luxembourg
Madagascar
Malawi
Malaysia
Maldives
Mali
Malta
Marshall Islands
Mauritania
Mauritius
Mexico
Micronesia
Moldova
Monaco
Mongolia
Montenegro
Morocco
Mozambique
Myanmar/Burma
Namibia
Nauru
Nepal
Netherlands
New Zealand
Nicaragua
Niger
Nigeria
North Korea
North Macedonia
Norway
Oman
Pakistan
Palau
Palestine*
Panama
Papua New Guinea
Paraguay
Peru
Philippines
Poland
Portugal
Qatar
Romania
Russia
Rwanda
Saint Kitts and Nevis
Saint Lucia
Saint Vincent and the Grenadines
Samoa
San Marino
São Tomé and Príncipe
Saudi Arabia
Senegal
Serbia
Seychelles
Sierra Leone
Singapore
Slovakia
Slovenia
Solomon Islands
Somalia
South Africa
South Korea
South Sudan
Spain
Sri Lanka
Sudan
Suriname
Sweden
Switzerland
Syria
Taiwan
Tajikistan
Tanzania
Thailand
The Gambia
Timor-Leste
Togo
Tonga
Trinidad and Tobago
Tunisia
Türkiye
Turkmenistan
Tuvalu
Uganda
Ukraine
United Arab Emirates
United Kingdom
United States
Unknown
Uruguay
Uzbekistan
Vanuatu
Venezuela
Viet Nam
Western Sahara
Yemen
Zambia
Zimbabwe
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Start date
Year
Year
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
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1928
1929
1930
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1932
1933
1934
1935
1936
1937
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1940
1941
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1944
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1958
1959
1960
1961
1962
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1966
1967
1968
1969
1970
1971
1972
1973
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1980
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2015
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2019
2020
2021
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2023
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2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
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Month
Month
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
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Day
Day
1
2
3
4
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31
Toggle dropdown
The incident lasted only one day
End date
Year
Year
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
Toggle dropdown
Month
Month
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Toggle dropdown
Day
Day
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
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25
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27
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29
30
31
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Component involved
- Select a value -
balloon
battery
CGH2 cylinder(s)
CGH2 tank (FCEV)
CGH2 tank (rail)
CGH2 tank (stationary)
CGH2 tube (trailer)
chemical storage tank (pulp)
chemical storage tank
chemical storage tank (gases)
chemical storage tank (H2SO4)
chemical storage tank (HCl)
chemical storage tank (hydrocarbon)
chemical storage tank (waste)
compressor / booster / pump
compressor / booster / pump (seal)
compressor / booster / pump (electrical system)
compressor / booster / pump (flange)
compressor / booster / pump (pipe)
compressor / booster / pump (piston)
compressor / booster / pump (seal)
compressor / booster / pump (valve)
compressor / booster / pump (weld)
cryogenic connection
cryogenic flange
cryogenic insulation shell
cryogenic pipe
cryogenic pump
cryogenic valve
cryogenic vessel
dispenser (breakaway)
dispenser (FCEV receptacle)
dispenser (gasket)
dispenser (generic)
dispenser (hose)
dispenser (nozzle)
dispenser (pump)
Electrolysers
electrolytic cell
electrolytic cell (diaphragm)
electrolytic cell (header)
FCEV
FCEV (TPRD)
FCEV bus
FCEV plane
FCEV train
flange (bolts)
flange (cryogenic)
flange (gasket)
flange (generic)
gasholder/gasometer (coal gas)
gasholder/gasometer (H2)
gasholder/gasometer (O2)
gasholder/gasometer (oil)
gauge/instrument
gauge/instrument (connection)
gauge/instrument (flowmeter)
gauge/instrument (piping)
gauge/instrument (spectrometer)
gauge/instrument (threaded connection)
gauge/instrument (valve)
geological well
H2 coolant system
H2 coolant system (flange)
H2 coolant system (pipe)
H2 coolant system (rotating seal)
heat exchanger (cold box)
heat exchanger (flange)
heat exchanger (generic)
heat exchanger (pipe)
hose (generic)
hose (trailer)
hydrogen dryers
hydrogen hydraulic guards
hydrogen washing tower
hydrogen-fired boiler
joint/connection (expansion joint)
joint/connection (gasket)
joint/connection (generic)
joint/connection (glass)
joint/connection (hose)
joint/connection (lyre)
joint/connection (neck)
joint/connection (pigtail)
joint/connection (threaded)
joint/connection (valve)
LH2 tank (road tanker)
LH2 tank (stationary)
manifold
mixer
n.a.
non-hydrogen component
off-gas system
off-gas system (filter)
off-gas system (gasket)
off-gas system (pipe)
off-gas system (recombiner)
off-gas system (safeguars seal)
off-gas system (seal)
off-gas system (stack house)
off-gas system (valve)
off-gas system (vent)
other
pipe (bend)
pipe (generic)
pipe (weld)
pipeline (connection)
pipeline (flange)
pipeline (flowmeter)
pipeline (generic)
pipeline (weld)
piping (collector)
piping (cylinders)
piping (generic)
piping (pigtail)
piping (supply line)
piping (tube trailer)
piping (weld)
PRD (burst disc)
PRD (gasket)
PRD (generic)
PRD (valve)
pressure regulator
pressure regulator (gasket)
reactor / oven / furnace / test chamber
safeguard (level detector)
ship
ship (container)
TPRD
TPRD (burst disc)
transformer
treatment system (gas / fume / dust)
unknown
unspecified component
vacuum cleaner
valve (check)
valve (control)
valve (cryogenic)
valve (cylinder)
valve (discharge)
valve (fill)
valve (gasket)
valve (generic)
valve (gland)
valve (non-return)
valve (pressure building)
valve (shut-off)
valve (vapour return valve)
valve (vent)
valve (weld)
venting system
venting system (exit)
venting system (line)
venting system (stack)
venting system (valve)
water pump (gasket)
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Failure mode
- Select a value -
correct activation & venting
damage, no release
erroneous release & ignition
erroneous release, no ignition
explosion (generic)
external explosion (H2-air mixture)
failure to activate
failure to re-close
fire (generic)
ignition of vented H2
internal (flow) blockage
internal explosion
internal fire
internal leak
leak & ignition
leak, no ignition
malfunctioning
manual venting
n.a.
premature activation & venting
rupture & ignition
rupture, no ignition
unknown
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Initiating cause
- Select a value -
accidental air entrance
accidental hydrogen entrance
accidental hydrogen formation
conventional component failure (compressed air)
conventional component failure (coupling)
conventional component failure (electricity, power)
conventional component failure (fire-brakes)
conventional component failure (fire-engine)
conventional component failure (fire-tyres)
conventional component failure (fire)
conventional component failure (turbine-generator)
extreme environmental conditions
extreme environmental conditions (storm)
extreme environmental conditions (earthquake)
extreme environmental conditions (flooding)
extreme environmental conditions (lightning)
H2-driven material degradation
ice formation
impact, rollover, crash
inadequate grounding
inadequate off-gases management
inadequate or no maintenance / calibration
inadequate or no purge
inadequate or wrong design
inadequate venting
loss of tightness
loss of tightness (mechanical vibrations)
loss of tightness (road vibrations)
loss of tightness (thermal stress/cycling)
loss of tightness (wrong operation)
malfunctioning (electrical/electronic component)
malfunctioning (electrolyser, cross-over)
malfunctioning (filters)
manufacturing defect/error
material degradation (ageing)
material degradation (creep)
material degradation (cryogenic temperature)
material degradation (electricity damage)
material degradation (external corrosion)
material degradation (fatigue)
material degradation (generic)
material degradation (high temperature)
material degradation (internal corrosion / erosion)
material degradation (low temperature)
material degradation (over-stress)
material degradation (stress-corrosion)
material degradation (thermal shocks)
material degradation (thermal stress/cycling)
material degradation (vibrations)
n.a.
over-heating
over-heating (run-away reaction)
over-heating (wrong operation)
over-pressurisation
over-pressurisation (boil-off)
over-pressurisation (electrical malfunction)
over-pressurisation (excessive boil-off)
over-pressurisation (flash evaporation)
over-pressurisation (over-filling)
over-pressurisation (over-heating)
over-pressurisation (road vibrations)
over-pressurisation (thermal insulation degradation)
over-pressurisation (wrong operation)
run-away reaction
unknown
wrong component
wrong installation
wrong material choice
wrong operation
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Root CAUSE analysis
About text formats
Root causes
Environment
Human factors
Installation error
Job factors
Management factors
Material/ manufacturing error
System design error
Unknown
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FACILITY
Application
- None -
Chemical industry
Electrical, electronics and micro-electronics industry
Hydrogen production
Hydrogen refuelling station
Hydrogen stationary storage
Hydrogen transport and distribution
Laboratory / R&D
Non-road vehicles
Other
Petrochemical industry
Portable fuel cell
Power plant
Road vehicles
Stationary fuel cell
Steel and metals industry
Unknown
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Sub-application
Hydrogen supply chain stage
- Select a value -
hydrogen as by-product
Hydrogen as coolant
Hydrogen as feedstock
Hydrogen as fuel
Hydrogen as process gas
Hydrogen compression
Hydrogen delivery
Hydrogen for buoyancy
Hydrogen liquefaction
hydrogen local supply
Hydrogen production
hydrogen storage
Hydrogen transfer
hydrogen transport
Other
Unintended hydrogen production - chemical reaction
Unintended hydrogen production - radiolysis
Unintended hydrogen production - thermolysis
Unknown
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All components affected
About text formats
Process temperature range [C]
N/A
unknown
cryogenic temperature (below -50°C)
ambient temperature (-50°C to +50°C)
Above ambient temperature (50°C to 100°C)
High temperature (100°C to 500°C)
Very high temperature (500°C to 1000°C)
Ultra-high temperature (above 1000°C)
Process pressure range [MPa]
N/A
unknown
vacuum ( below 0.01 MPa)
ambient pressure (around 0.1 MPa)
low to medium pressure (below 2 MPa)
medium pressure (2 to 10 MPa)
medium to high pressure (10 to 50 MPa)
high pressure (above 50 MPa)
Location type
- None -
Open
Confined
Semiconfined
Underground
Unknown
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Location
- None -
airport or airborne
city
countryside or desert
harbour or waterborne
highway or similar
industrial area
other
populated area
railway or train station
space
unknown
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Operational condition
- None -
ABNORMAL
COMMISSIONING
DE-COMMISSIONING
MAINTENANCE
NORMAL
REPAIR
SHUTDOWN
STARTUP
TESTING
UNKNOWN
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Pre-event occurrences
About text formats
Description of the facility/unit/process/substances
About text formats
EMERGENCY & CONSEQUENCES
Number of fatalities
Number of injured persons
Environmental damage
Currency
Property loss (onsite)
Property loss (offsite)
Post-event summary
About text formats
Official legal action
About text formats
Investigation comments
About text formats
Emergency action
About text formats
Emergency evaluation
About text formats
LESSONS LEARNT
Lesson Learnt
About text formats
Corrective Measures
About text formats
EVENT NATURE
Release type
Involved substances (% vol)
Order
Involved substances (% vol) (value 1)
Remove
Weight for row 1
0
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Release duration
Release rate
Released amount (kg)
Release temperature [°C]
Release pressure [MPa]
Hole shape
Hole length (mm)
Hole width (mm)
Hole diameter (mm)
Hole area (mm)
Probable IGNITION SOURCE
- None -
Auto-ignition
Catalytic reaction
Electricity
Hot surface
Mechanical sparks
No ignition
No release
Not reported
Open flame
Other
Run-away reaction
Short circuit
Static electricity
Unknown
Weather - lightning
Welding
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Ignition delay(s)
Explosion type
- None -
BLEVE
Combustion explosion (generic)
Deflagration
Detonation
Fireball
High pressure explosion
High voltage explosion
VCE
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Flame type
- None -
Fire (generic)
Flash fire
Jet fire
Pool fire
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Cloud surface (m^2)
Cloud volume (m^3)
Flame length (m)
Flame surface (m^2)
Flame volume (m^3)
Heat radiation (MW/m^2)
REFERENCES
Reference & weblink
Order
Reference & weblink (value 1)
About text formats
Remove
Weight for row 1
0
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SUBMITTER
Fullname
Organisation
Email
Internal notes
About text formats
This information is treated as confidential and is only visible to the HIAD review team. Add any context that would help us review your report—for example, pending investigation reports, news articles, or materials you can share later. We will only use your contact details to follow up on this submission.
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