When are containers allowed to be stored horizontally?

Containers are allowed to be stored horizontally when they have an internal volume of less than 0.174 standard cubic feet (SCF). This specification is important because smaller containers pose less risk when they are stored horizontally compared to larger containers. The regulations typically require that larger containers be stored upright to prevent hazards such as leaks or spills, which can occur if a larger volume of material shifts or if integrity is compromised when on its side. Therefore, the size restriction allows for safe handling and reduces potential risks associated with fuel oils or other types of hazardous materials.

In terms of storage practices, ensuring that a container meets this volume threshold contributes to overall safety and compliance with standard operating procedures related to fuel-oil piping and storage systems.