ISO Tank is a tank container built with ISO standards (International Organization for Standardization). ISO tanks are designed to carry large quantities of liquid, both harmful and harmless.
The tank is made of stainless steel and is surrounded by various types of protective coatings. Different skins can be used with an ISO tank depending on the type of bulk cargo it carries. It has a hole at the top along with at least one valve and other valves at the bottom. They are shaped like cylinders.