Cryogenic liquid intermodal, IMO type 7, containers are:

Cryogenic liquid intermodal, IMO type 7, containers are:

• A. Non-Pressure Tanks That Are Highly Insulated
• B. Diverse in Pressure Ratings as High as 600 Psi
• C. Atmospheric Pressure Non-Insulated Tanks
• D. Very Low-Pressure Highly Insulated Tanks

Answer: (B)

Cryogenic liquid intermodal containers are built to keep extremely cold liquids at their low temperatures while minimizing heat input. That requires very effective insulation, typically vacuum insulation, and a design that maintains only a very small pressure inside. Boil-off gas is vented to the outside so the pressure stays low and safe. A tank that is non-pressurized or that relies on atmospheric pressure would not manage the boil-off or the cryogenic temperatures properly, and a claim of pressures up to 600 psi conflicts with how these vessels operate. Therefore, the best description is that these containers are very low-pressure, highly insulated tanks.

Cryogenic liquid intermodal containers are built to keep extremely cold liquids at their low temperatures while minimizing heat input. That requires very effective insulation, typically vacuum insulation, and a design that maintains only a very small pressure inside. Boil-off gas is vented to the outside so the pressure stays low and safe. A tank that is non-pressurized or that relies on atmospheric pressure would not manage the boil-off or the cryogenic temperatures properly, and a claim of pressures up to 600 psi conflicts with how these vessels operate. Therefore, the best description is that these containers are very low-pressure, highly insulated tanks.