How often to calibrate an analytical balance

Our analytical balance is used for a non-critical part of our process.
Would it be acceptable to calibrate it twice a year?

Also - what about a regular balance? Would once a year be sufficient? (Again, not used for anything critical).

Thanks

 

You've got me wondering what the difference is between an "Analytical Balance" and a "Regular Balance"...

The answer is rather non-specific..."in order to assure valid results" or some such...

We calibrate balances about once a year...based on historical data of stability and 'non-issue'.
We have considered going to 2yrs.

You might consider calibrating at 6mnths at first, but on "no issues" consider extending the cycle.
This type of calibration is a cost-benefit decision.
If you have the balance looked at and it is out of tolerance, everything since the last calibration is in question...how big of a deal is that?
For us, having a year's worth in question (not "Bad"...in question) is worth the cost savings ...
That risk/benefit analysis is where companies tend to part ways from each other, even if they have the same balance.
The calibration cycle is set partly on the importance/criticality of what you use the balance for...and the historical performance of the equipment regarding stability.