sophie_paris said:The mechanism and the magnitude are separate questions.
This is my experience too, for whatever a second data point is worth. Posting only so the count is not one.
Reporting back.
Resolved. I wrote mg, ml and mg/ml on the vial in marker and did the division in that order, and the two of us now get the same number every time.
One concrete data point for the thread. One habit that pays for itself: post the method alongside the number. A figure without its method cannot be checked, and an unchecked figure is how this community accumulates folklore.
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Shop Reference StandardsFollowing on from sophie_paris — and this may be the naive question:
What would you measure differently if you were starting again?
Dr.PathRoch said:One habit that pays for itself: post the method alongside the number.
This is where I part company with the consensus forming above. The counter-case has not been addressed. Somebody upthread described the situation that does not fit, and the thread moved on rather than engaging with it, which is the failure mode this board is supposed to avoid.