Abstract: Apparatus for the accurate pipetting of small liquid volumes for sample and reagent mixtures which include a pipette with a point at least partly fitted in a thermo-regulated space in one single pipetting-incubating station in such a way that at least the liquid container of the pipette is in the thermo-regulated space. Sample reagent or reaction mixture test tubes, and when necessary, also, a shaker and/or a storage section or a container are, also, fitted in the pipetting-incubating station and are thermo-regulated at the same temperature so that the pipetting, shaking and storage of samples and reaction mixtures can be carried out in a centralized manner within one single pipetting-incubating station, in conditions thermo-regulated in an exact predetermined way.

Abstract: A laboratory centrifuge includes a housing and a support plate elastically mounted at the bottom of the housing. A rotor driven by an electric motor is mounted on the support plate together with a hood which surrounds the rotor. The motor, rotor and hood are rigidly connected for movement as a unit relative to the housing.