Liquid nitrogen vessels are designed to support long-term storage of samples at cryogenic temperatures (-196°C to -210°C). Samples prepared with cryo-protectants, such as DMSO, can remain viable for up to a decade when stored in liquid nitrogen.
Liquid nitrogen tanks are units used for the conservation of laboratory samples at very low temperatures. Due to fast freezing, it prevents damage to structures and protects processes from moisture, oxidation and contamination.