Transportation of dangerous gases

Transportation of dangerous gases

Transportation of gases is one of the most difficult kinds of motor transportations as it is connected with heightened danger. In most cases, gases under the certain conditions represent a serious danger, as they easily blaze up or explode when not following the transportation conditions. Moreover, some gases, not having explosive properties, represent a potential dander for the environment when being emitted to the atmosphere and can lead to decease of people who turned out to be at the epicenter of their emission. That’s why in the classification of dangerous cargoes gases occupy the second position and their transportation requires increased security measures as well as an accurate observance of instructions during loading and transportation.  

All the gases are divided into six main classes that characterize the degree of their danger for people and environment during transportation.

Class 1.
Here belong gases that don’t have poisonous properties, don’t explode and aren’t flammable, and also can be combined with other gases during transportation.

Class 2.
Includes poisonous gases that should be transported in a compressed or liquefied condition under the high pressure. They aren’t explosive, but during transportation they are allowed to be combined only with the gases of the first class.

Class 3.
Here belong flammable gases that, as a rule, are transported in a compressed condition and can be combined only with gases of the first class.

Class 4.
The gases of the fourth class are characterized by a heightened toxicity, but during transportation they can be combined with the gases of the first class notable for their low ability to ignite.

Class 5.
Here belong gases that are chemically unstable and have heightened ability to explode.

Class 6.
Includes gases that are chemically unstable, flammable and during transportation can be combined only with non-flammable gases of the first class or should be transported separately.

During transportation of gases regardless of their class a set of regulations, which allow to avoid emergency situations, must be observed. First of all it’s necessary to remember that gases must be transported exclusively in cylinders that have special labels and are painted with colors corresponding to their contents. The labeling of cylinders, in which gases are transported, has no single standard and differs in every country of the world.

As for the color of cylinders, there are international standards which allow to unmistakably define what gas is being transported in one or another case. Before the start of loading and transportation it is necessary to make sure that all the cylinders are hermetically sealed and don’t let the contents to go out. Besides, it’s necessary to check whether the volume of gas contained in the cylinder correspond to the set standards.

It is possible to transport the cylinders with gas by two different ways that considerably reduce the risk of occurrence of emergency situations. The vertical way provides that all the cylinders are put on the special wooden support with holes corresponding to their diameter. During the horizontal way of transportation the cylinders with gas are put on one another, having been previously supplied with special rubber rings that protect them from interaction with each other and from blows during the movement of the vehicle.