[Histonet] Defrost -80

[Lee Loss]

We need to defrost our -80 freezer in a derm lab.  We do DIF procedures requiring the controls to be stored in the -80.  We don't have immediate access to another -80 freezer.  We do have a chest freezer that will maintain -20.  Can we hold those DIF controls at -20 while the -80 is down?  How long can those controls be stored that way without losing their IF?

Lee Loss
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