5011 Bulk-packed Non-sterile Cryogenic Vials Materials: polypropylene high-density polyethylene closure Economical, non-sterile version of Cat. Nos. 5000-0012 and -0020 without printing or graduations. Closures and vials are packed separay. Do not autoclave. These vials are for research use only; not for in vitro diagnosis or parenterals. 1000/bag. WARNING! Do not use cryogenic vials for storage in the liquid phase of liquid nitrogen unless correctly sealed in Nunc CryoFlex? tubing. Such use may cause entrapment of liquefied nitrogen inside the vial and lead to pressure build-up resulting in possible explosion or biohazard release. Use appropriate safety procedures as outlined in the NALGENE Cryopreservation Manual when handling and disposing of vials. Request Lit. No. 10096 or download a copy from