Calculation for Weighing Range of Balanc
Balances are used to weigh different things as raw material, dispensed material and samples. Sometimes very low quantity is weighed for analysis. An error in the weighed material can cause a big variation in analytical results.
Following circumstances may cause the error in the weighing:
Balance for analytical use must be closed; an open balance may cause inaccurate weighing.
Hygroscopic material gains weight when it comes in contact with the air causing unstable weighing.
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Airflow or current in the balance room may cause a disturbance in accurate weighing.
Unleveled surface or balance may lead to inaccurate weighing.
A vibrating surface can also cause inaccurate weighing.
BalanceAssay, related substances and other quantitative analytical tests require accurate weighing for better results. Near the lower and upper capacity of the balance, weighing may be inaccurate. Therefore, a weighing range must be defined for all balances.