Abstract: The invention is directed to a method for testing batches of tips for pipettes, the method comprising the steps of calibrating a pipette to be tested with a recommended reference tip, fitting the pipette with a tip to be tested and performing a second calibration and recalibrating the pipette with the reference tip.

Abstract: The present invention relates to evaluating the performance of an automated matrix-format liquid handling system by using receptacles and caps. The invention provides a method comprising the steps of determining a receptacle weight for each receptacle, determining a mean cap weight for the caps, dispensing a volume of liquid in each receptacle by using the liquid handling system, capping each receptacle approximately simultaneously with respect to each other, determining a gross weight for each capped receptacle, and calculating the volume of liquid dispensed in each receptacle from the respective gross weight, the respective receptacle weight, and the mean cap weight. The invention further provides a kit for carrying out the method, the kit comprising a plurality of receptacles, a plurality of caps, a holder device for arranging the receptacles in accordance with liquid dispensing positions in the liquid handling system, and a capping device for capping the receptacles.

Abstract: The invention is directed to a method for testing batches of tips for pipettes, the method comprising the steps of calibrating a pipette to be tested with a recommended reference tip, fitting the pipette with a tip to be tested and performing a second calibration and recalibrating the pipette with the reference tip.