OpenLegislation

Division 3.1.2.2 Repeatability

United Kingdom

Original text. Later amendments are not shown.

  • Prepare a set of samples of identical matrices, fortified with the analyte to yield concentrations equivalent to 1, 1,5 and 2 times the minimum required performance limit or 0,5, 1 and 1,5 times the permitted limit.

  • At each level the analysis should be performed with at least six replicates.

  • Analyse the samples.

  • Calculate the concentration detected in each sample.

  • Find the mean concentration, standard deviation and the coefficient of variation (%) of the fortified samples.

  • Repeat these steps on at least two other occasions.

  • Calculate the overall mean concentrations and CVs for the fortified samples.

Notes on Annex I

Textual amendments

F1

Replaced by virtue of 2003/181/EC: Commission Decision of 13 March 2003 amending Decision 2002/657/EC as regards the setting of minimum required performance limits (MRPLs) for certain residues in food of animal origin (Text with EEA relevance) (notified under document number C(2003) 764)