# Commission Decision of 12 August 2002 implementing Council Directive 96/23/EC concerning the performance of analytical methods and the interpretation of results (notified under document number C(2002) 3044) (Text with EEA relevance) (2002/657/EC), Division 3.1.3.2: Power curve

Extent: E+W+S+N.I.

The power curve provides information about the detection capability of the method within the chosen concentration range. It refers to the β-error risk when applying the investigated method. The power curve allows to calculate the detection capabilities for the respective categories (screening, confirmation) or types (qualitative or quantitative) of methods for a certain β-error (e.g. 5 %).
Figure 1
Power curve
Figure 1 shows an example of the graphical establishment of detection capability (CCβ) of an analytical method. This particular method has a remaining risk of taking a false decision of 5 % at a concentration of 0,50 μg/kg. At a concentration of 0,55 μg/kg the risk of taking a false compliant decision decreases to 1 %.

---
Source: https://www.legislation.gov.uk/eudn/2002/657/annex/chapter/3.1/division/3.1.3.2 (the official version)
Page: https://openlegislation.uk/eu-decision-2002-657/annex/chapter-3.1/division-3.1.3.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.