Thermo Scientific™ automated tips for use with Perkin Elmer™/Packard™ automated liquid handling systems with Varispan™ dispensing arms; tips are validated through a rigorous 15-point quality control program to ensure consistency. The tips have excellent verticality and low coefficient of variation for precise pipetting performance. Pipette tips have been tested on actual workstations and are certified sterile to be free of RNase, DNase, DNA, endotoxins, bioburden and pyrogens.