Abstract: A centrifuge rotor cover assembly for use with a centrifuge having a rotor and a housing enclosing the rotor and including a lid movable between a closed position overlying the rotor and an open position providing access to the rotor. The cover assembly includes a rotor cover removably coupled to the lid. Means are provided for engaging the rotor cover with the rotor for rotation therewith and for uncoupling the cover from the lid in response to the lid being moved to the closed position. Means are also provided for disengaging the rotor cover from the rotor and for coupling the cover to the lid in response to the lid being moved to the open position.

Abstract: The invention relates to an identification flag for a sample tube. The flag includes a longitudinally extending planar element, and tube connectors extending laterally from the planar element. The tube connectors are engageable with opposite portions of the tube to secure the planar element to the tube in a laterally spaced relationship with respect to an intermediate portion of the tube located between the opposite portions.