Variation of the result in a set of replicate measurements. This can be expressed, e.g. as the standard deviation or coefficient of variation (relative standard deviation). This term may have a more general meaning, e.g. if the replicates constitute a batch or involve different instruments, laboratories and analyst.
See: precision, standard deviation
Sources:
PAC, 1989, 61, 1657. 'Nomenclature for automated and mechanised analysis (Recommendations 1989)' on page 1663 (https://doi.org/10.1351/pac198961091657)
PAC, 1995, 67, 1699. 'Nomenclature in evaluation of analytical methods including detection and quantification capabilities (IUPAC Recommendations 1995)' on page 1706 (https://doi.org/10.1351/pac199567101699)