Simport 50Ml Disposable Centrifuge Tubes Case T420-1 by Simport Scientific GROUP: Lab Equipment & Accessories:Sample Collection & Processing:Tubes/Vials/Cuvettes Item Description: 50mL Centrifuge Tube, Sterile, Polystyrene, Green Cap, 25/rack, 20 rack/Case Packaging Desc: Centerifuge Tube 50Ml 29X118Mmst Polyst 25/Rk 20Rk/Case Country of Origin: CA Harmonized Tariff Code: 3926.90 Product Description: Useful for collecting and transporting biological specimens. Leakproof characteristics are ensured by a flat top plastic screw cap with an inner sealing lip. Molded graduations from 2.5 to 50ml. Can be autoclaved and will resist temperatures up to 121�C. They will also resist acids, solvents and alkalies at room temperature. They withstand centrifugation speeds of 3000 g or 5000 RPM. Polypropylene tubes only can be autoclaved and resist acids, solvents and alkalies.