Containers shall be stored upright unless they have an internal volume of less than what?

Containers of non-flammable compressed gases generally need to be stored upright to prevent the risk of valve damage and to allow for the safe handling of the gases. However, containers with an internal volume less than a specific threshold can be stored in different orientations safely.

The correct threshold for storage orientation refers to an internal volume of less than 0.174 Standard Cubic Feet (SCF). When containers are below this volume, the risks associated with storing them in various positions become negligible due to the low amount of compressed gas they hold, which reduces the potential danger if they are not stored upright.

Thus, for containers below the 0.174 SCF mark, standard safety regulations allow them to be laid down or stored in other positions without significantly increasing risk, as they typically have less potential for pressure loss or valve damage.