Cryogenic laboratory freezer, liquid nitrogen

Definition

A mains electricity (AC-powered) laboratory appliance designed for extended cell/tissue (e.g., ovum, embryo, bone, cornea) storage, at temperatures below the point when most all biological activity ceases, using liquid nitrogen (LN2) as the cooling and storage agent. LN2 storage provides a temperature of -180? Celsius (-292? Fahrenheit) or colder. The device typically consists of a chamber with two vessels separated by a vacuum space; automatic temperature controls; an external container to replenish the cryogenic fluid; a pressure-relief device, alarm, recorder; and a pressure-control valve. Cells/tissues are immersed in the liquid nitrogen using appropriate sealed containers.

GUDID devices

24

Last updated

2021-10-20 06:45:19