50 ml APEX Essential CentTube, sterile packaging (4 x 25 pcs.)

Alpha Laboratories 50 ml APEX® Essential sterile centrifuge tubes are manufactured from high-quality, medical-grade polypropylene. Designed for everyday centrifugation and storage requirements, the tubes can withstand a centrifugation force of up to 12,500 g. Both caps and centrifuge tubes are autoclavable (caps should not be autoclaved separately from the tubes) and can be used in a temperature range from -90 to 122 °C. Each tube has an overall length of 115 mm, an outer diameter of 29 mm, and an inner diameter of 25 mm.


Centrifuge tubes are batch-tested and certified free from DNA, DNase, RNase, and pyrogen/endotoxin. They are also certified as low trace metal. When the product is marked as sterile, sterilization is carried out by gamma irradiation. The sterilization process follows ISO 11137 sterility procedures. The APEX® Essential centrifuge tube cones are manufactured using the highest quality molds and printed in a high-speed rotational process with reagent-/chemical-resistant inks. They feature large white solvent-resistant writing areas and black, easy-to-read graduations in 5 ml increments with an accuracy of ± 5%. The easy-to-label flat cap design includes an integrated elastomeric sealing ring. This allows the user to seal the tube with a ¾ turn at an evaporation seal. A further quarter turn makes the seal liquid-tight. This easy-grip cap design is also simple to use with gloves.

These centrifuge tubes not only excel in performance but are also environmentally friendly. They are manufactured using waste-free electronic molds that consume 40% less energy. Printing is done without VOC pollutants. The 50 ml APEX® Essential centrifuge tubes are supplied in 4 racks with 25 tubes each (100 tubes). These reusable, autoclavable, and freezable (-80 °C) polypropylene racks can be snapped together to form a workstation and feature numbered wells for easy sample positioning.