Fire extinguisher had been developed by DuPont and the US Army in 1954. Both 1211 and 1301 work by inhibiting the chain reaction of the fire, and in the case of Halon 1211, cooling class A fuels as well. Halon is still in use today but is falling out of favor for many uses due to its environmental impact. Europe and Australia have severely restricted its use, since the Montreal Protocol of 1987. Less severe restrictions have been implemented in the United States, the Middle East, and Asia. Internationally there are several accepted classification methods for hand-held fire extinguisher. Each classification is
2012 Jersey gas holder fire gas leak on the side of the holder", who were using electric tools. During this, the leaking gas ignited. The fire spread and "attacked" the joints of the holder, which caused more gas to leak out and ignite, resulting in a larger and more intense fire. Furthermore, Jersey Gas admitted to not carrying out risk assessments, not providing "a safe system of work" and providing inadequate health and safety training to its employees. An area of St Helier was evacuated and cordoned off soon after the fire started. Seven near-by schools were also evacuated. Many residents who live in houses