measurement accuracy is reflected in the approximation of the measured value to the true measurand.In terms of measurement accuracy, a distinction is made between random measurement uncertainties and systematic measurement uncertaint
ies. The random measurement uncertainties cannotbe corrected specifically, whereas the systematic measurement uncertainties can be corrected mathematically.
In DIN 1319, the "true" value of the measurand is described as an ideal value which is normally not known. In contrast, the "correct" value of the measurand is a "known" value which is used as a reference.