Centrifuge TubesGraduations are printed in bold easy-to-read black inkLarge white marking area provides excellent contrast identificationTemperature range -80C to 120CSterileMax Force (RCF) g 12,000Tubes are sterile (gamma irradiated)Available in resealable bag, foam rack, or paperboard rack.SHIPPING NOTE: Orders placed by 12pm (EST) Monday – Friday will ship the same dayOrders placed after 12pm (EST) Monday – Friday will ship the next business dayOrders placed Saturday or Sunday will ship on the following Monday