The guidance in this document is intended for laboratories involved in the official control of contaminants in food and feed and focuses on the determination of these substances in the laboratory. It is intended as general guidance for laboratories and particularly for those that do not have existing analytical methods. It provides guidance on the essential analytical parameters to be used for organobromine contaminant analysis in food and feed and contributes to further harmonization in this field as part of the EURL’s official mandate and scope of work.


In the times of a variety of online platforms for managing multi-user contributions, it is important to not only have the analytical know-how but also to understand how to participate in an interlaboratory exercise. EURL POPs uses personalised contribution tokens and messaging on the EUSurvey platform for their exercises. While everyone is getting used to this platform, we have started a collection of helpful guidance for the technical aspects of our proficiency tests and interlaboratory studies, now in its second edition with more detailed explanations on editable contributions.


Announcement of the EURL Proficiency Test on the Determination of PCDD/Fs, PCBs, PBDEs, HBCDDs, PFASs and CPs in Pork Liver (food). This proficiency test (PT) on the determination of PCDD/Fs, PCBs, PBDEs, HBCDDs, PFASs and CPs in pork liver is organized by the EURL for halogenated POPs in Feed and Food to be performed between February and April 2022. The objective is to assess analytical performance of laboratories and the inter-laboratory comparability of results from analyses of PCDD/Fs, PCBs, PBDEs, HBCDDs, PFASs and CPs in one sample of pork liver.


ECHA has recently issued a public call for comments and evidence on MCCPs for a proposed ban of this substance class. The EURL POPs CWG CP has answered based on their work on the CP guidance document and their experience with interlaboratory exercises including MCCPs.


Given the growing importance of chlorinated persistent contaminants other than PCBs and dioxins, of brominated persistent contaminants and of fluorinated persistent contaminants for the safety of feed and food, the scope of the EU reference laboratory (EURL) for dioxins and PCBs in feed and food was extended to all halogenated persistent organic pollutants (POPs) in feed and food. Therefore the EU reference laboratory for dioxins and PCBs in feed and food was renamed in EU reference laboratory for halogenated persistent organic pollutants (POPs) in feed and food to reflect this extension of scope (Commission Regulation (EU) 2018/192). The tasks of EURLs are defined by Regulation (EU) 2017/625 of the European Parliament and of the Council.


The European Union Reference Laboratory (EURL) for Polycyclic Aromatic Hydrocarbons (EURL PAH), the EURL for Heavy Metals in Feed and Food (EURL HM), the EURL for Mycotoxins (EURL Mycotoxins), and EURL for Dioxins and PCBs in Feed and Food aim to provide with this document guidance to official food control in the EU on the estimation of the limit of quantification of analytical methods for the determination of individual substances in the field of contaminants in feed and food. The document focusses on estimation of the limit of detection (LOD) and/or limit of quantification (LOQ) of polycyclic aromatic hydrocarbons (PAHs), heavy metals, mycotoxins, polychlorinated biphenyls (PCBs) and polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs).


EURL POPs provides several documents as scientific output of its work as free downloads. Forwarding and reproduction of these documents is permitted as entire document, not excerpts. Instructions and reports of proficiency tests and interlaboratory studies are restricted to the participants of these exercises; respective passwords will be provided along with the individual laboratory code.

Technical Guidance for PTs v1.1 January 2022
Guidance Document on the Determination of Organobromine Contaminants December 2021
EURL PT POP 2201-PL Announcement December 2021
EURL PT Baby Food 2021 Report PBDE HBCDD August 2021
EURL PT Baby Food 2021 Report PCDD FPCB July 2021
EURL PT DPB 2105 DCP Announcement July 2021
Guidance Document on CP analysis v1.9 June 2021
EURL ILS BC 2104 CLO Announcement June 2021
EURL PT PF 2102 LWE Announcement June 2021
EURL PT CP 2103 IF Announcement May 2021
Technical instructions EURL POPs PTs v1.0 May 2021
Guidance Document LOD/LOQ August 2017
Guidance Document MU May 2017
EURL Recommendation for extraction procedures December 2007