Today, the transportation of goods has a very important role in the economy and relations between countries. Also, with the increase in passenger traffic and trade, the need for fast transportation of goods has become stronger. Among the various methods of transportation, air mail has a special place in this industry. An important feature of the airmail industry is its high speed and safety. But despite these advantages, there are restrictions on the transportation and mailing of goods, especially since the shipment in question includes dangerous goods. It is natural that this group of goods needs rules, all of which are necessary in order to carry dangerously safe goods in the air post.
There are different rules for air freight, depending on the company, but there are some general rules that all airlines are required to follow. The question may be raised what are the rules for transporting goods during air travel or for sending goods to other countries. Therefore, before traveling or sending cargo, we must have sufficient familiarity with the rules of permitted aircraft load. In addition to the weight and volume of cargo, the type of goods is also important in sending air mail, in addition, some types of goods are considered dangerous in air transport. At air post, dangerous goods are items that may endanger the safety of passengers and aircraft and the navigation system during loading or unloading. Because in aircraft, due to changes in air pressure and temperature, the product may be endangered by various reactions and conditions. For example, many of the raw materials we use, mostly in laboratories and factories, are potentially hazardous. This issue becomes more sensitive when these materials are exposed to conditions such as temperature, high or low pressure, etc. It is important to consider these when transporting dangerous goods by air.