Centrifuge tubes, used in conjunction with centrifuge instruments, are available in glass and plastic varieties. The tubes also come in various volume capacities, RCF ratings, closure types, speed resistance, sterilenon-sterile format, and some feature graduations to facilitate volume measurement. Use Thermo Scientific™ Nalgene™ Oak Ridge High-Speed Centrifuge Tubes for aggressive chemical or high-speed centrifugation procedures.