# Commission Regulation (EU) 2017/644 of 5 April 2017 laying down methods of sampling and analysis for the control of levels of dioxins, dioxin-like PCBs and non-dioxin-like PCBs in certain foodstuffs and repealing Regulation (EU) No 589/2014 (Text with EEA relevance), Division 7.3.3

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

Calculation as mean value of bioanalytical results (in BEQ, corrected for blank and recovery) from multiple analysis of samples (n ≥ 6) contaminated at two-thirds of the maximum or action level. This is based on the observation that this level will be around the cut-off determined under point 7.3.1 or 7.3.2.
Calculation of cut-off values based on a 95 % level of confidence implying a false-compliant rate < 5 %, and a RSDR < 25 %:
1..from the lower band of the 95 % prediction interval at the decision limit of the confirmatory method,
2..from multiple analysis of samples (n ≥ 6) contaminated at the decision limit of the confirmatory method as the lower endpoint of the data distribution (represented in the figure by a bell-shaped curve) at the corresponding mean BEQ value.

---
Source: https://www.legislation.gov.uk/eur/2017/644/annex/III/division/7/division/7.3/division/7.3.3 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-644/annex-III/division-7/division-7.3/division-7.3.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.