NF ISO 5725-1, X06-041-1 (08/2023)

This document — describes the conditions, constraints and resources necessary to evaluate a measurement method or result; — defines an organizational framework for the acquisition of accuracy and reliability data through the study; — provides the definitions, statistical model and principles necessary for the use of ISO 5725 standards (all parts); — does not apply to proficiency testing or the production of a reference individual, topics covered by other standards (ISO 13528 and ISO Guide 35). This document deals exclusively with measurement methods which provide results on a continuous scale and which give as a test result a single value, although this single value may be the result of a calculation made from a set of observations. It defines values which describe, in quantitative terms, the ability of a measurement method to give a correct result (accuracy) or to repeat a given result (fidelity). This ability therefore requires measuring an identical individual in exactly the same way and mastering the measurement process. This document can be applied to a very wide variety of test individuals, including gases, liquids, powders and solid, manufactured or natural objects, provided that possible heterogeneity of the test is properly taken into account. test individual. This document does not cover the calculation methods that are described in other parts.
(Automatic translation from French)