Which type of cylinders must be handled as if they were full?

Empty exchange cylinders must be treated as if they were full because they could still contain residual gas, which poses potential safety risks. Even when a cylinder is labeled as empty, it can still have a small amount of gas remaining under pressure. This means that improper handling could lead to dangerous situations, such as leaks or explosions if the cylinder is damaged or mishandled.

In the context of safety practices, it's essential that handlers of LP-gas are aware that even cylinders they think are empty need to be treated with caution and respect. Full and empty cylinders require similar handling procedures to ensure the safety of the operators and those nearby, as well as to maintain the integrity of the gas delivery process.

Other types of cylinders mentioned, such as damaged cylinders, storage cylinders, and inspection cylinders, only require special handling based on their specific conditions and regulations but do not inherently necessitate being treated as if they’re still full.