What type of drum is a closed head metal drum commonly recognized as?

A closed head metal drum is specifically designed with sealed ends and is commonly used for transporting or storing liquids, especially hazardous materials. This type of drum typically has just one or two openings, which are usually fitted with screw tops or bung openings, preventing spills and contamination. The closed head design minimizes exposure to external contaminants and enhances safety by reducing the risk of leaks.

The other options do not accurately describe the type of drum in question. An open head drum, for instance, features a lid that can be removed entirely, allowing for easier access to the contents but offering less protection against spills. While a hazardous waste drum can be a closed head metal drum, it can also refer to any container designated specifically for hazardous waste regardless of its design. A disposable drum is not specific to the characteristics of a closed head drum, as it refers to containers that are intended for one-time use, typically made of materials that are not intended for long-term storage.