These 50 mL centrifuge tubes are also useful for collecting and transporting biological specimens. Leakproof characteristics are ensured by a flat top plastic screw cap with an inner sealing lip. Tubes are made of translucent polypropylene or optically clear polystyrene with molded graduations from 2.5 to 50mL with a green screw cap.
Polypropylene tubes can be autoclaved and will resist temperatures up to 121 degrees C; they will also resist acids solvents and alkalies at room temperature. They withstand centrifugation speeds of 3000g or 5000 RPM. Bulk package of 25.