Sterile, Pyrogen-free, manufactured in polypropylene white colour, conical, with screen-printed graduation in green, leakproof screw cap. They ensure a complete shielding of the sample in order to preserve, in security, light-sensitive materials (drugs, H2O2, Chemicals, Reagents, etc.). Excellent resistence to low and high temperatures, good resistance to chemical agents. Autoclavable at +121 °C and freezable up to -80 °C, RCF max = 5,000 g.