United States or Armenia ? Vote for the TOP Country of the Week !
It should be noted that on some balances the last division bears no number. Each new rider should be tested against a 5 or 10-milligram weight. In some of the most recent forms of the balance a chain device replaces the smaller weights and the use of the rider as just described. Before using a balance, it is always best to test its adjustment.
The rider should also be compared with a 5 or 10-milligram weight. In an instructional laboratory appreciable errors should be reported to the instructor in charge for his consideration. When the highest accuracy is desired, the weights may be calibrated and corrections applied. A calibration procedure is described in a paper by T.W. Richards, !J. Am. Chem.
Word Of The Day