why does nobody talk about excursion
The title is the whole question — why does nobody talk about excursion — but here is why I am asking. You cannot infer potency from a temperature record. The record tells you what happened to the box; only a test tells you what happened to the material. Regional stock changes the question rather than answering it:…
Gel packs are designed for a duty cycle. A liquid pack at the end of a longer-than-expected transit is a pack behaving as specified, not evidence of an excursion in the vial.
Gel packs are designed for a duty cycle.
This is the distinction that resolves most threads here — powder and solution are different problems.
This is the distinction that resolves most threads here — powder and solution are different problems.
Agreed, and a logger costs less than the vial you are worrying about.
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That is the ambient temperature at the destination, not the temperature inside the box. The logger measures the second one.
Was there a logger in the box?
Yes — a logger in the box turns a fortnight of speculation into a chart.