This document applies to all thermally insulated means of transport, including: trucks, trailers, tanks, vans, wagons, containers for land transport, small containers, packaging. It is related to every type of insulation. If certain temperatures have to be maintained independently of external conditions, the above means of transport could be additionally provided with a cooling and/or heating device. This document specifies the terminology, the requirements for thermal insulation, air tightness, test provisions, dimensioning of containers with and without cooling and/or heating device. This document specifies also the test provisions for new and in service equipment(s). This document specifies the terminology, the requirements for thermal insulation, air tightness, test provisions for K-value. This document does not specify further land transport requirements with regard to dimensions, weights, etc. This document does not cover safety requirements. This document does not specify special requirements for sea containers covered by ISO 1496-2.