TS ISO 11843-2/Cor 1

TS ISO 11843-2/Cor 1 is a corrigendum to the standard concerned with capability of detection in the linear calibration case. Its technical subject is the estimation of critical values and the minimum detectable value of a net state variable, which are used to describe how well a measurement procedure can distinguish a small analytical or metrological effect from background variation.

Linear calibration and detection capability

In this context, a linear calibration function means that the relationship between the response and the net state variable can be represented by a linear model over the intended range. The standard addresses cases where the standard deviation is either constant or linearly related to the net state variable. That distinction matters because the behavior of variability directly influences how critical values and related detection characteristics are estimated.

Estimation from experimental data

• It covers design experiments for the relevant estimation framework.
• It addresses estimation of the critical value of the net state variable.
• It addresses estimation of the critical value of the response variable.
• It addresses estimation of the minimum detectable value of the net state variable.
• The characteristics are obtained from experimental data.

In general technical use, capability of detection describes a method’s ability to signal the presence of a very small effect with defined statistical confidence. In metrology, analytical testing, and other measurement contexts, this is closely tied to calibration, measurement noise, and the point at which a result becomes distinguishable from zero or background. As a corrigendum, this listing relates to the correction document for the parent standard rather than a separate standalone method standard.