ISO 668

Common card · No. 365985

ISO 668 – Series 1 freight containers – Classification, dimensions and ratings is an ISO international standard which nominally classifies intermodal freight shipping containers, and standardizes their sizes, measurements and weight specifications. The current version of the standard is the Seventh edition (2020), which integrates version E. The standard was prepared by Technical Committee ISO/TC 104: Freight containers, Subcommittee SC 1: General purpose containers. Introduced in 1968, ISO 668 currently regulates both external and internal dimensions of containers, as well as the minimum door opening sizes, where applicable. Minimum internal dimensions were earlier defined by ISO standard 1894: 'General purpose series 1 freight containers – Minimum internal dimensions'. Its second edition appeared in 1979, but was withdrawn, once revised by ISO 1496‑1 of 1990. The current version of ISO 1496‑1 is 2013, including Amendment 1 of 2016, last reviewed and reconfirmed in 2019. ISO 668 also...

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