What is the difference between Atmospheric Preconditioning and Atmospheric Conditioning?

What is the difference between Atmospheric Preconditioning and Atmospheric Conditioning?


The required Atmospheric Preconditioning (aka Laboratory Acclimation) is to help the package reach a stable temperature, should be exposed to extreme temperatures on the way to the lab.

The optional Atmospheric Conditioning is not challenging the thermal performance of a package such as an insulated shipping container which has pharmaceuticals in it but rather is attempting to understand how that package will perform while in that condition not as a result of that condition.
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