Which of the following is identified as a ton container?

A ton container is specifically designed to hold a large volume of material, typically up to one ton (or approximately 2,000 pounds) of bulk materials or liquids. In this context, a cylinder is often categorized as a ton container when it is large enough to meet this capacity requirement. Cylinders are commonly used for gases that are stored under pressure, making them suitable for hazardous materials that can be stored in this form.

Drums, bags, and boxes are generally not classified as ton containers. Drums typically hold much less than a ton, bags are used for lightweight materials or bulk powders with considerably less capacity, and boxes often have a volume limitation as well that does not approach the ton classification. Therefore, the cylinder stands out as the correct answer among the listed options for identifying a ton container based on its design and intended use for larger volume storage.