Globe Scientific Screw Cap Plastic Test Tubes are molded from premium grade polystyrene (PS) for clarity or polypropylene (PP) for impact strength and stability to common acids, alkalis, and solvents. The polyethylene screw caps are designed to be leak-tight allowing the tubes to be used for storage or transport.
- Polystyrene tubes can withstand 1500 rpm during centrifugation
- Polypropylene tubes can withstand 3000 rpm and are autoclavable and freezable
- Great when dealing with aliquot sampling
- Leak-tight screw caps