The Argos Flip-Top centrifuge tube offers a hinged flip top cap that allows for single handed opening and closing. The attached cap provides less chance of dropping or losing a separate cap. Supplied with bold, easy-to-read black graduations - accurateto +/- 2%. Includes a large white marking area for sample identification. Manufactured in class 100,000 clean room. Guaranteed DNase, RNase & Pyrogen Free. Temperature range -80° - 120°C. Maximum RCF 9,400g; compatible with any fixed angle or swing bucket rotor. Gamma irradiated - supplied 25 tubes per bag, 500 per case. Flip-Top tubes are not recommended for use in long term storage or sample transport applications.