United Scientific Supply Centrifuge Tubes,Conical

United Scientific Supply Polypropylene tubes include blue High Density Polyethylene leak-proof screw caps The tubes and caps feature specially-designed flat threads for vacuum-type closure that is leak-free at a pressure of 700mm Hg Highly smooth hydrophobic internal surfaces minimize wall effect Silk-screen graduations and a frosted surface make writing easier Autoclavable at 121В Degree C and 15 psi for 30 minutes Radiation sterilized DNase, RNase, Pyrogen and latex-free Maximum RCF 14000 Amber colored tubes are suitable for light sensitive applications because they do not allow any light to pass through the samples - USS