McKesson Serological Pipette 1 mL 0.01 mL Graduation Increments / 0.03 mL Negative Graduations Sterile (1176004_CS) 500/CSSerological pipettes are designed for accurate and rapid fluid dispensing; they can be used for mixing chemical solutions, mixing cell suspension, transferring liquids and measuring liquids. McKesson polystyrene serological pipettes fit into most pipette controllers and allow for fast volumetric measurements. Calibration is certified for accuracy. Aerosol barrier plug. Reverse graduations and negative graduations. Reverse graduations descending in 0.