Indeed, the Guide contains the VIM definitions of 24 relevant terms. In the following definitions, the use of parentheses around certain words of some terms means that the words may by omitted if this is unlikely to cause confusion. The VIM identification number for a particular term is shown in brackets after the term. Repeatability may be expressed quantitatively in terms of the dispersion characteristics of the results. Reproducibility may be expressed quantitatively in terms of the dispersion characteristics of the results.
Results are here usually understood to be corrected results.
As pointed out in the Guide , if the result of a measurement depends on the values of quantities other than the measurand, the errors of the measured values of these quantities contribute to the error of the result of the measurement. In general, the error of measurement is unknown because the value of the measurand is unknown. However, the uncertainty of the result of a measurement may be evaluated. Because only a finite number of measurements can be made, it is possible to determine only an estimate of random error. Like the value of the measurand, systematic error and its causes cannot be completely known.