Refrigerated versus room temperature: the trade-off stated plainly Writing it up because I had to work it out twice and would rather nobody else did.
The question about refrigerated versus room temperature that I actually want answered is the second one below. The first is context and I have kept it short.
Both are stated with units, and I have said what I already checked so that nobody repeats it.
Beyond-use dating: the date after which a prepared solution should not be used. It is an estimate based on how fast the solution degrades under stated storage, not on whether the solution suddenly becomes unusable on a calendar date. The date is a boundary; crossing it is a risk factor not a certainty of damage.
That distinction has done more work for me than anything else in this category.
Right — I had this wrong and I am glad to have read it before it mattered.
| Topic | Participants | Replies | Views | Activity |
|---|---|---|---|---|
|
Freeze-thaw and why one cycle is not the same as five
On the subject in the title: Freeze-thaw and why one cycle is not the same as five Working notes rather than a conclusion. Two things I would like separated before anyone answers on freeze-thaw, because they…
|
+21 | 25 | 41k | 8mo |
|
Second pass at: A reconstituted vial's beyond-use date and the reasoning behind common figures
Second pass at: A reconstituted vial's beyond-use date and the reasoning behind common figures Writing it up because I had to work it out twice and would rather nobody else did. Something changed and I would…
|
+4 | 8 | 20k | 8mo |
|
What published stability data actually covers, and what it does not — what changed since
What published stability data actually covers, and what it does not — what changed since — that is the question, and I have not found it answered plainly anywhere I have looked. What changes if the standard…
|
3 | 43k | 6mo | |
|
Coming back to: Storing in the door of the fridge is worse than you think
On the subject in the title: Storing in the door of the fridge is worse than you think Working notes rather than a conclusion. Asking about the failure mode rather than the procedure, because the procedure is…
|
+2 | 6 | 2.1k | 1d |
|
Temperature logging at home: what is worth the effort
Temperature logging at home: what is worth the effort — setting out what I have, and where I think it stops being reliable. An honest uncertainty about temperature logging rather than a disguised assertion. I…
|
2 | 6.3k | 7mo |
| Topic | Participants | Replies | Views | Activity |
|---|---|---|---|---|
|
Second pass at: Transit times by route, from a logged dataset
On the subject in the title: Second pass at: Transit times by route, from a logged dataset Working notes rather than a conclusion. Posting a small dataset on Transit times. It is mine, it is uncontrolled, and…
|
2 | 59k | 19mo | |
|
Domestic fridge temperature mapping: a cheap experiment
Domestic fridge temperature mapping: a cheap experiment Writing it up because I had to work it out twice and would rather nobody else did. Collecting what is known about domestic fridge temperature mapping in…
|
2 | 182 | 14mo | |
|
[2026 update] Storing lyophilised material long term: what governs the shelf life
Storing lyophilised material long term: what governs the shelf life — setting out what I have, and where I think it stops being reliable. Two things I would like separated before anyone answers on Storing…
|
+122 | 133 | 35k | 1mo |
|
Pen dose counters: what a click does and does not guarantee
On the subject in the title: Pen dose counters: what a click does and does not guarantee Working notes rather than a conclusion. Pen dose counters — I have the observation and I do not trust my interpretation…
|
+116 | 122 | 1.6k | 8mo |
|
Second pass at: Temperature logging at home: what is worth the effort
Posting this under the heading it deserves: Second pass at: Temperature logging at home: what is worth the effort Everything below is what sits behind that. Posting a small dataset on Temperature logging. It…
|
+4 | 8 | 29k | 1mo |