Abstract: A description is given of a cap for a reagent container having a sealable lid, where the lid can be pivoted laterally upward from the cap sealing position, with the container being opened, by means of an inclined bistable hinge, bears one or more catches which can come into contact with an apparatus for opening or closing the lid, and the cap has one or more centering elements by means of which the reagent-container setting position in the analyzer is fixed.

Abstract: A flow damper for cleaning stations, in particular for cleaning pipettor tips, is described, a cleaning liquid being introduced into the cleaning station through a pipettor needle and flowing around the pipettor tip before it is conducted away out of the cleaning station. In order to avoid wetting of the isolation surfaces of the pipettor needle and a level detector electrode, if provided, there are provided, according to the invention, in the cleaning station at least one screen having a preferably central entry orifice for the jet of liquid emerging from the pipettor needle and a device for diverting the liquid flow in the direction essentially opposite that of the entering jet of liquid. Furthermore, a plurality of exit orifices, preferably arranged radially around the entry orifice, for the diverted liquid flow are formed in the at least one screen.