Perishable cargoes, eg, dairy produce, fruit, vegetables, flowers, frozen foods, meat, fish, etc., require maintenance of specific temperature ranges during air related door-to-door transportation.
SAE ARP1523-1992 history
2014SAE ARP1523C-2014 Air Mode Insulated Containers - Thermal Efficiency Requirements
2008SAE ARP1523B-2008 Air Mode Insulated Containers - Thermal Efficiency Requirements