Is there any precedent for abbreviating the word Units, and if more than one, is there any standardized prescription (no pun intended on my example) for which abbreviation to use in which context?
The question came up because I'm making a user input form with a field for units and the framework optionally specifies an abbreviation for the input field's label.
So, in a medical context, this
is as valid is this
But can this
be correctly substituted with something like this?
(NB, I'm not asking specifically about a medical context or about the accuracy of
U, it's merely an example)
Note that the meaning of units as a synonym for pieces (pcs.) may be a different answer. In this case, I'm asking about units as a category including kilograms and miles. (Bonus points for also providing the answer for that other meaning.)