Is there any reason why we gotta know how to use this out-dated piece of ****? Why bother if they have digital balances? Besides, much more error possible with the torsion balance as opposed to the digital balance.
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Torsion Balance
Started by Sparda29
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There are three reasons I can think of, two of them are actually good ones.
- Torsion balances are significantly cheaper than digital (~$500 vs. >$1,000). For an individual pharmacy, this isn't all that big a deal if you're buying one or two, but for a school that has to purchase dozens, it adds up quickly.
- It's easier for the student to see the inherent error in the balance with the analog scale versus the digital read out.
- It's the way things have always been done (this is the bad reason). Why do we still learn conversions from scruples to troy ounces? There's no need, but everyone else has to so we still do.
- Torsion balances are significantly cheaper than digital (~$500 vs. >$1,000). For an individual pharmacy, this isn't all that big a deal if you're buying one or two, but for a school that has to purchase dozens, it adds up quickly.
- It's easier for the student to see the inherent error in the balance with the analog scale versus the digital read out.
- It's the way things have always been done (this is the bad reason). Why do we still learn conversions from scruples to troy ounces? There's no need, but everyone else has to so we still do.
Last retail job I had, the boss refused to spring for a digital scale so we had to use the torsion balance for the (very occasional) mixtures we prepared.
Or at least, I used it; I suspect the other pharmacists were just guesstimating the amount of HC powder to add, for instance.
Why the grumpiness? It's pretty simple to use.
Or at least, I used it; I suspect the other pharmacists were just guesstimating the amount of HC powder to add, for instance.
Why the grumpiness? It's pretty simple to use.
It's so clunky though.
True. They are widely enough used that you should be taught how to use them, however.
The fancier analytical balances use piezoelectricity. Probably not necessary for the vast majority of pharmacy applications, though.
