it are engineered for demanding high-speed centrifugation applications. Constructed from durable, transparent polycarbonate, these tubes offer excellent mechanical strength and chemical resistance. They are suitable for use in both refrigerated and ambient centrifuges at forces up to 50,000 × g and can withstand temperatures ranging from −135 °C to +135 °C. The round-bottom design ensures even distribution of samples during centrifugation, and the optional friction-fit closures (Type DS3111) provide secure sealing for high-speed performance.