# Commission Implementing Regulation (EU) 2019/627 of 15 March 2019 laying down uniform practical arrangements for the performance of official controls on products of animal origin intended for human consumption in accordance with Regulation (EU) 2017/625 of the European Parliament and of the Council and amending Commission Regulation (EC) No 2074/2005 as regards official controls (Text with EEA relevance), Division 1: Unprocessed fishery products shall be regarded as unfit for human consumption where organoleptic assessment has raised doubts as to their freshness and chemical checks reveal that the following TVB-N limits are exceeded:

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

(a)25 mg of nitrogen/100 g of flesh for the species referred to in point 1 of Part B of this Chapter;
(b)30 mg of nitrogen/100 g of flesh for the species referred to in point 2 of Part B of this Chapter;
(c)35 mg of nitrogen/100 g of flesh for the species referred to in point 3 of Part B of this Chapter;
(d)60 mg of nitrogen/100 g of whole fishery product used directly for the preparation of fish oil for human consumption, as referred to in the second paragraph of point 1 of Chapter IV.B of Section VIII of Annex III to Regulation (EC) No 853/2004; however, where the raw material complies with points (a), (b) and (c) of the first paragraph of that point, the appropriate authority may set limits at a higher level for certain species pending the establishment of specific national legislation.
The reference method to be used for checking the TVB-N limits involves distilling an extract deproteinised by perchloric acid as set out in Part C below.

---
Source: https://www.legislation.gov.uk/eur/2019/627/annex/VI/chapter/II/division/A/division/1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2019-627/annex-VI/chapter-II/division-A/division-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.