T311 Series: 4.0ml Round-Bottom
Cap Design: Silicone Washer Seal and Internal Threads
Tube Design: Round-Bottom with graduations
Designed for storing cells, blood, serum and other biological fluids at temperatures as low as -196 °C, these sturdy polypropylene vials offer a high level of chemical resistance but should be used only in the gas phase of liquid nitrogen.
A silicone washer between cap and vial ensures a positive leakproof seal at all temperatures. Closure and vials are both manufactured of polypropylene with the same coefficient of expansion, ensuring an equally secure seal both at room temperature and at low cryogenic temperatures.
Tubes have a white marking area, can be color coded with a CAPINSERT (Series T312) and are compatible with most storage systems. Only the round bottom vials can be centrifuged, and up to 17,000g. Sterilized by gamma radiation and packaged in unique tamperproof, resealable, safety-lock bags of 100. Autoclavable. Certified RNase-, DNase-, Pyrogen- and DNA-free. 12.5x70mm