# Commission Regulation (EC) No 152/2009 of 27 January 2009 laying down the methods of sampling and analysis for the official control of feed (Text with EEA relevance), Division 9: Performance characteristics: criteria for the sum of non-dioxin-like PCBs at the maximum level

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

Use of all six 13 C-labelled analogues as internal standards required.
Isotope dilution mass spectrometry
Other techniques
Trueness
– 20 to + 20 %
– 30 to + 30 %
Intermediate precision (RSD %)
≤ 15 %
≤ 20 %
Difference between upper and lower-bound calculation
≤ 20 %
≤ 20 %

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Source: https://www.legislation.gov.uk/eur/2009/152/annex/V/division/B/chapter/III/division/9 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-152/annex-V/division-B/chapter-III/division-9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.