HIAD Quality Indicator: 2

A leak occurred in a vehicle carrying 218 cylinders of hydrogen. The contents of 28 cylinders, 90 m of hydrogen, escaped. A security perimeter was set up with stop of the road and rail traffic.

A leak occurs on a hydrogen gas transport at a flange of 9 cylinders of 80 m. The producer of these cylinders decides to let it leak. No consequences to report.

hydrogen gas released from vent stack following failure of relief valve in pressure relief system on bulk hydrogen installation, no ignition and no injuries.

Leak of hydrogen at a refinery which may have been caused by a faulty compressor.

A truck-trailer carrying compressed hydrogen cylinders stopped on an autobahn and reported a hydrogen leaking from the cylinders. The highway was immediately closed in both directions. When the fire…

During maintenance work on a gas pipeline carrying hydrogen , a worker hears a leak at about at a bridge. The operator measures an concentration of 3% of the low flammability limit at few…

Fire due to hydrogen gas leakage.

A factory was evacuated after a tank began leaking hydrogen. No injuries were reported

Compressed hydrogen was released from a storage system due to the rupture of a Bourdon-type pressure gauge.

A road tanker was being loaded with liquid hydrogen from a 15,000 gallon storage tank, when fire broke out after 1 inch rupture disk failed, ignition source was a loose connection in down stream…

The rupture disk installed on a liquid hydrogen tank failed, in a plant producing organic chemicals, during the weekly shut down. The hydrogen ignited at the exit of the exhaust chimney. The fire…

A liquid hydrogen leak occurs in a steel plant on a 42000 l tank of liquid hydrogen. A sealing coupling was installed to stop the leak.

A hydrogen feed line ruptured without igniting at an oil refinery.

A leak of 700 l of gaseous hydrogen was detected around on a connection of a rack of cylinders on a trailer truck, in aircraft plant (classified Seveso, lower tier).

Gas leakage from a hydrogen cylinders pallet in transit.

A leak occurred on the safety valve of a train wagon transporting liquid hydrogen wagon. The train was composed of 10 wagons. The train was stopped on the railway several hours to allow…

A tractor-trailer carrying canisters of gaseous hydrogen gas crashed on a major East Coast route. Compressed hydrogen gas leaked from some of the containers after the truck rolled on its side.

A joint failure allowed a mixture of hydrogen and nitrogen into the atmosphere.Failure of double cone joint on waste heat boiler in synthesis loop caused release of synthesis gas at 28.7 MPa and 170…

The incident occurred in a plant producing organic chemistry products. Hydrogen leaked briefly from an hydraulic valve. There has been no victim.

An aerosol of hydrogen, hydrogen chloride and sulfuric acid is released in a plant producing chlorine via electrolysis.The exhaust pipe on the water circuit of the electrolyzer was blinded due to the…