50 ml SuperClear Centrifuge Tube, sterile, loose (100 pcs.)

Alpha Laboratories’ non-sterile 50ml SuperClear™ centrifuge tubes are manufactured from high-quality medical-grade polypropylene. The tubes are designed for more demanding laboratory applications than standard centrifuge tubes, and can withstand a centrifugal force of up to 20,000 g. Both the caps and centrifuge tubes are autoclavable (caps should not be autoclaved separately from the tubes) and can be used within a temperature range of -90 to 122 °C. Each tube has an overall length of 115 mm, an external diameter of 29 mm, and an internal diameter of 25 mm.


The centrifuge tubes are batch-tested and certified to be DNA, DNase, RNase, and pyrogen/endotoxin-free. They are also certified to be trace metal-free. If the product is marked sterile, sterilisation is by gamma irradiation. The sterilisation process follows ISO 11137 sterility procedures. The thicker SuperClear™ centrifuge tube cones are produced using the highest quality moulds, and printed using 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 elastomer sealing ring. This allows the user to seal the tube to an evaporation-proof seal with a ¾ turn. A further quarter turn makes the seal liquid-proof. This easy-grip cap design is easy to use even when wearing gloves.

These centrifuge tubes not only perform but are also environmentally friendly. They are produced with waste-free electronic moulds, which consume 40% less energy. Printing is performed without VOC pollutants. The 50ml SuperClear™ centrifuge tubes are supplied loose in 2 packs of 50 tubes.