Diamond Max Centrifuge Tubes are engineered for high-speed centrifugation, and premium grade materials and an automated, touch-free manufacturing process provide both performance and cost savings. Manufactured in a class 100,000 cleanroom, gamma irradiated to SAL 10-6, and certified free from DNase, RNase, human DNA, pyrogens, and endotoxins, the tubes can sustain high spin rates with maximum RCF ratings of up to 20,000x g. An integral seal ring design allows for secure closures and the tubes include recyclable paperboard racks.