Thermo Nalgene Centrifuge Tubes, 15 mL, Round, Polycarbonate (PC) are engineered for high-speed centrifugation and long-term laboratory reliability. Manufactured from high-strength, transparent polycarbonate, these tubes offer superior mechanical durability and excellent chemical resistance. They are suitable for use in refrigerated or ambient centrifuges at forces up to 50,000 × g and remain stable under extreme temperatures from −135 °C to +135 °C. The round-bottom design ensures balanced sample separation, while optional friction-fit closures (Type DS3111) provide secure sealing during high-speed operation.