Accuracy, as we learned in an earlier module is "the closeness of agreement between the result of a measurement and a true value of the measurement."  For a balance, this means the capability of a balance to indicate values close to the correct mass value of the item being weighed.	 	References in this course: M3L1T2, 3/29
Drift is the gradual change in the readout of a weighing instrument at a constant load.		References in this course: M3L1T2, 3/29		
Balance linearity refers to an ideal, straight line between zero and the balance calibration points.	 	References in this course: M2L3T1, p. 6/15
Balance sensitivity is the smallest value of weight that will cause a change of the reading that can be determined by the user.  Sensitivity is related to the degree of balance responsiveness and is load dependent on many balances.	 	References in this course: M2L3T2, p. 23/33
Bias is a generic concept related to a consistent or systematic difference between a set of test results from the process, and an accepted reference value of the standard being measured.	 	References in this course: M1L2T3, 11/23
Air buoyancy is an upward force whose magnitude depends on the density of the air and the volume of air displaced.	 	References in this course: M3L1T2, 3/29