Editing Ultracentrifuge (section)

==Hazards==
The tremendous rotational [[kinetic energy]] of the rotor in an operating ultracentrifuge makes the [[catastrophic failure]] of a spinning rotor a serious concern, as it can explode spectacularly. Rotors conventionally have been made from high strength-to-weight metals such as aluminum or titanium.  The stresses of routine use and harsh chemical solutions eventually cause rotors to deteriorate.  Proper use of the instrument and rotors within recommended limits and careful maintenance of rotors to prevent corrosion and to detect deterioration is necessary to mitigate this risk.<ref>Beckman Instruments, Spinco Division. [http://www.chem.purdue.edu/chemsafety/newsandstories/beckmanletter.pdf Urgent corrective action notice: Reclassification to Minimize Ultracentrifuge Chemical Explosion Hazard.] June 22, 1984.</ref><ref>Goodman, T. [http://www.americanlaboratory.com/914-Application-Notes/1326-Centrifuge-Safety-and-Security/ ''Centrifuge Safety and Security.''] American Laboratory, February 01, 2007</ref>

More recently some rotors have been made of lightweight carbon fiber composite material, which are up to 60% lighter, resulting in faster acceleration/deceleration rates. Carbon fiber composite rotors also are corrosion-resistant, eliminating a major cause of rotor failure.<ref>Piramoon, Sheila. "Carbon fibers boost centrifuge flexibility: advancements in centrifuge rotors over the years have led to improved lab productivity." Laboratory Equipment Mar. 2011: 12+. General Reference Center GOLD. Web. 15 Feb. 2015.</ref>