Analytical Balance Calibration and Verification
Our lab is using an analytical balance and it is calibrated annually by an external provider. The calibration covers a range starting with a 10 mg weight, and the provider will not go any lower (I believe thay don't have the weights to do so).
Before each use, the lab verifies accuracy of the balance with calibrated standard weights. They go down to 1 mg and always bracket the sample weights to be weighed.
Do you see any potential issue by weighing below the minimum weight used by the external calibration lab or if the fact that we verify our range before use covers us? Any risk with regulatory agencies (FDA, EMA, ANVISA, others)?
Thank you for your help!
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