Weighing balances,
1) Do we require to establish 'operating range' ; If yes, what are the principles/requirements and references outlining the same.
Thumb rule is that we should weigh only in the range of 0-80% of balance capacity + least count must also be accounted...
i.e., for a balance with 100g capacity(0.01g least count), we should use it for weighing 0.02g-80g
2) Can we use two standard weights for carrying out calibration. (viz., use 100mg + 50 mg weights to check a calibration of balance at 150mg value)
1) Do we require to establish 'operating range' ; If yes, what are the principles/requirements and references outlining the same.
Thumb rule is that we should weigh only in the range of 0-80% of balance capacity + least count must also be accounted...
i.e., for a balance with 100g capacity(0.01g least count), we should use it for weighing 0.02g-80g
2) Can we use two standard weights for carrying out calibration. (viz., use 100mg + 50 mg weights to check a calibration of balance at 150mg value)