Tube made of polystyrene / Cap made of polyethylene.
These 8 ml screw cap tubes are available either sterile or non sterile. A special tamper evident cap is offered for applications needing the utmost security where sample integrity is of high importance. Tubes are made of optically clear polystyrene and can be centrifuged up to 3000 x g. These are not treated for cell culture. The sterile ones are sterilized by gamma radiation and are non pyrogenic.