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- Posts: 481
- Joined: Fri Jun 02, 2017 11:10 pm
- Location: Western Colorado
When digital balances came along; again, the balances are checked once a year but class 1 (or better) check weights were required each day of use. Some labs required we bracket the range typically used on a particular balance and others required a high and low mass anywhere in the range.
I don't remember if we had to send the weights out for recalibration. My recall is that when the balances were checked, the technician would compare our check weights to theirs on our balance and certify them good for our use.
What are the requirements for your labs?