A self-standing centrifuge tube is a type of laboratory tube designed to stand upright without external support. These tubes typically have a conical bottom, which allows them to stand steadily on a flat surface. They are commonly used in various laboratory procedures such as centrifugation, storage, and transportation of samples.A self-standing centrifuge tube is a type of laboratory tube designed to stand upright without external support. These tubes typically have a conical bottom, which allows them to stand steadily on a flat surface. They are commonly used in various laboratory procedures such as centrifugation, storage, and transportation of samples.