In order tobe able to use a canister for transport of fuel for example, it has to undergo a series of tests. This is the only way to get the approval to be used for the transport of dangerous goods.
An independent testing institute check such dangerous goods transport packaging on a daily basis. Many end up getting approval, some not. Dangerous goods are hazardous substances which, due to their nature, their properties or their physical state, pose particular risks. Especially when transporting these goods, high safety standards apply in order to protect public safety and order, important commons and the health and life of people, animals and nature.
The risks posed by dangerous goods can be diverse. For example, they can be toxic, highly flammable, or radioactive. Depending on this risk they are classified in different classes of dangerous goods.