What is a "drum" in the context of hazardous materials shipping?

In the context of hazardous materials shipping, a "drum" refers specifically to a cylindrical container designed for the storage or transportation of hazardous materials. Drums are commonly constructed from materials such as steel, plastic, or fiber, and they are specifically designed to safely hold and contain various substances, including chemicals, solvents, and other hazardous materials. The design and construction of these drums often comply with strict regulations and standards to ensure they can withstand the pressures of transportation and potential hazards associated with their contents.

Drums are the standard container used in industries for bulk shipping because they are stackable, transportable, and easy to handle. Their cylindrical shape allows for efficient use of space in transport vehicles. Given the context of hazardous materials, it is crucial that these drums are properly labeled and handled to prevent leaks, spills, or accidents during transit.

In contrast, other options do not accurately define a drum as used in hazardous materials shipping. A type of safety equipment does not encompass the function of a drum. A label for hazardous materials refers to the markings that inform handlers about the nature of the contents and any associated risks, which is not the same as the container itself. Lastly, a unit of measure for liquids represents a volume metric, such as gallons or