At the beginning of container transportation, the structure and specifications of container are different. It affects the circulation of containers in the world. It is urgent to establish international standard of container for the development of container transportation. Container standardization can not only improve the universality and interchangeability of the container as a common transport unit in sea, land and air transportation, but also improve the safety and economy of container transportation, and promote the development of international container multimodal transport. At the same time, the standardization of containers also provides the basis for selection, design and manufacture of container transport and handling machinery, so that container transportation becomes a mutually connected, specialized and efficient transportation system. Container standards are divided into four categories according to their scope of use, including international standards, national standards, regional standards and company standards.
The standardization of container has undergone a process of development. Since the ISO/TC104 Technical Committee of the International Standardization Organization (International Standardization Organization) since its establishment in 1961, international standard containers have been supplemented, reduced and revised many times. The current international standards are first series of 13 kinds, with a uniform width (2438mm), four kinds of length (12192mm, 9125mm, 6058mm, 2991mm), and high degree. Three kinds (2896mm, 2591mm, 2438mm)