An intermodal container capable of holding high pressure gases 3000 psi or higher is called:

• A. Tank container
• B. Gas cylinder box
• C. Tube module intermodal container
• D. Pressure vessel container

Answer: (C)

High-pressure gas shipments by intermodal transport use a container specifically designed to hold multiple gas cylinders in a single unit. This is a tube module intermodal container. It encloses a bank of cylinders connected by a manifold, allowing gases to be stored at pressures of 3,000 psi or higher while traveling in one protected enclosure. This setup is distinct from an ISO tank container, which is a large bulk liquid container and isn’t designed to house a bundle of high‑pressure cylinders. Other options don’t describe the specialized cylinder-module arrangement used for very high pressures, so they don’t fit the common intermodal solution for this kind of cargo.