A parcel that arrived warm: a decision process, not a verdict posts 121–141

Adding the measurement that post #118 says would settle it.

Clarity is a weak test. A solution can lose a significant fraction of its active content to degradation or adsorption while remaining perfectly clear.

Posted with less confidence than the sentence structure implies.

Post #120 describes the usual case. This is about the unusual one.

Visible particulate is a strong signal in the other direction: it is a reason to stop and ask rather than to filter and proceed.

I have deliberately not rounded that, because the rounding is where the argument starts.

Clarity is a weak test. A solution can lose a significant fraction of its active content to degradation or adsorption while remaining perfectly clear.

Visible particulate is a strong signal in the other direction: it is a reason to stop and ask rather than to filter and proceed.

That is the honest state of it as of this week.

Clarity is a weak test. A solution can lose a significant fraction of its active content to degradation or adsorption while remaining perfectly clear.

I would treat the number as indicative rather than as a measurement.

Answering the question post #124 raises rather than the one it answers.

Temperature excursions in transit are common and are not all equal. A few hours warm is a different event from three days warm, and neither is visible in the vial on arrival.

The rule of thumb is fine; the edge cases are where it earns its keep.

Visible particulate is a strong signal in the other direction: it is a reason to stop and ask rather than to filter and proceed.

Clarity is a weak test. A solution can lose a significant fraction of its active content to degradation or adsorption while remaining perfectly clear.

Visible particulate is a strong signal in the other direction: it is a reason to stop and ask rather than to filter and proceed.

Clarity is a weak test. A solution can lose a significant fraction of its active content to degradation or adsorption while remaining perfectly clear.

Nothing above should be read as advice about what anyone else should do.

Visible particulate is a strong signal in the other direction: it is a reason to stop and ask rather than to filter and proceed.

That has been true for the cases I have seen and I have not seen many.

Clarity is a weak test. A solution can lose a significant fraction of its active content to degradation or adsorption while remaining perfectly clear.

It is the sort of thing that seems obvious in retrospect and was not at the time.

Where I part company with post #131, and it is a narrow parting.

Visible particulate is a strong signal in the other direction: it is a reason to stop and ask rather than to filter and proceed.

Post #131 is the version of this I will quote in future. One addition.

Clarity is a weak test. A solution can lose a significant fraction of its active content to degradation or adsorption while remaining perfectly clear.