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New NordVal International certificates June 2021

NordVal logo Jun 2021

Two NordVal International Certificates issued to Hyserve have been renewed from June 2021: NordVal International Certificate 042 "Compact Dry X-SA Method for the Enumeration of Staphylococcus aureus in Foods" and NordVal International Certificate 043 ”Compact Dry YM Method for the Enumeration of Yeasts and Moulds in foods”. Compact Dry are ready-to-use dry media sheets comprising culture medium and a cold-soluble gelling agent, rehydrated by inoculating 1 ml diluted sample into the centre of the self-diffusible medium. The Compact Dry X-SA and the Compact Dry YM methods both contain chromogenic medium and selective agents for the detection and enumeration of Staphylococcus aureus or yeast and mould, respectively.

NordVal International Certificate 017 "Campylobacter real-time PCR” issued to Eurofins Milk Testing, has been renewed from June 2021. This real time PCR method is applicable for the detection of the human pathogenic thermotolerant Campylobacters  (C. jejuni, C. coli and C. lari) in chicken raw meat, cloacae swabs and faecal samples collected on disposable shoe covers in rearing houses.

  • NordVal International Certificate 017 for ”Campylobacter real-time PCR”


NMKL 67: Presumptive Bacillus cereus. Determination in foods. 8th Ed. 2021

April 2021

We are happy to announce that the 8th edition of NMKL method No. 67 now has been published. In the 8th edition, the title of the method is changed back to “Presumptive Bacillus cereus. Determination in foods.”, and errors from the 7th edition are corrected. In the 8th edition, it is still possible to use blood agar in parallel with selective agar, especially, when low counts are expected.


"NMKL 67, 7th Ed. Bacillus cereus group" is withdrawn

17. Dec 2020

Unfortunately, NMKL has decided to withdraw the method “NMKL 67, 7th Ed. 2020 Bacillus cereus group”. We urge customers to use the 6th Ed. until the 7th Ed. has been revised and re-published early 2021.

NMKL acknowledges that a clarification concerning reporting results as ‘Bacillus cereus group’ is needed and that there are discrepancies between the Norwegian/Scandinavian and the English text. If the 7th Ed. has already been applied, please express results as ‘presumptive Bacillus cereus’. There are no known issues with technical performance of the method.

We sincerely apologize for the inconvenience and thank our observant customers for constructive feedback.


NMKL at CCMAS webinar

Nov 2020

NMKL participated in the Codex Committee on Methods of Analysis and Sampling (CCMAS) webinar series November 23-25 and our presentation is now available.



New NMKL-method: Total folate in food by LC-ESI-MS/MS. Quantification of 6 folate vitamers.

The standardized analytical method for folate in food has traditionally utilized quantification by a microbiological assay, a method that cannot distinguish between the different folate vitamers. This new NMKL method enables quantification of total folate based on quantification of six folate vitamers which contribute to the main folate activity. Besides providing the information about the content of the specific folate vitamers, the method includes fast extraction of folates from food that may be carried out within eight hours. 

The essential part of the method is using a pure γ-glutamyl hydrolase, which enables efficient and fast break-down of the polyglutamates to monoglutamates. LC-ESI-MS/MS quantifies monoglutamates by use of 13C5-labelled internal standards. 

A collaborative study was conducted in summer 2019 with participation of eight laboratories from seven European countries. The method has been successfully validated for total folate determination in strawberries, spinach, lentils, yogurt, liver and infant formula, providing acceptable Horwitz ratio values (0.60-1.94). The results are published in Food Chemistry (Ložnjak Švarc, P; Oveland, E; Strandler, HS; Kariluoto, S; Campos-Giménez, E; Ivarsen, E; Malaviole, I; Motta, C; Rychlik, M; Striegel, L; Jakobsen, J (2020): Collaborative study: Quantification of total folate in food using an efficient single-enzyme extaction combined with LC-MS/MS. Food Chemistry, 333, 127447).


Our newsletter is now in a new format

May 2021

NMKL newsletter No. 104 of May 2021 is finally published. The newsletter in a new and modern format opens in your web browser by clicking the following hyperlink:

NMKL News No. 104 


Nordic interpretation of the Control Regulation

Feb 2021

The Regulation (EC) No 882/2004 has been replaced by the Regulation (EU) 2017/625. Thus, NMKL has revised the Nordic standard document from 2009 for a Nordic interpretation of the Control Regulation regarding National Reference Laboratories and Official Laboratories. Please cite NMKL when referring to the revised document which is freely available here:

Nordic interpretation of OCR on laboratory aspects NMKL Feb 2021


New payment solution for purchasing publications

Dec 2020

Purchasing publications from NMKL is now easier and more efficient:

  • choose publication(s)
  • go to webshop and complete the order by paying with credit card
  • download the publication directly from the website

Please consult our price list for prices and payment terms.


NMKL general secretariat has moved to Norway

Nov. 2, 2020

As of 1st November 2020, the general secretariat of NMKL has moved from the Technical University of Denmark to the Institute of Marine Research in Norway. We would like to thank the former secretary general Nina Skall Nielsen and the former secretary Kirsten Becker Hansen for their great efforts during these past four years. The new secretary general is Eystein Oveland and the new secretary is Susanna Marie Petrova. We are currently working on updating all contact information on the website, and we thank you for your understanding as it takes some time to get everything in order.

Please note the new e-mail address and phone number:  This email address is being protected from spambots. You need JavaScript enabled to view it. , +47 9026 3022 

Please note that the prices listed as "kr" on the website refer to DKK. We are currently working on clarifying any ambiguities around the currencies in the webshop. Please consult the price list for prices and updated payment terms.


NMKL procedure No. 19, “Guidelines for sensory evaluation of food packaging”, has been updated

The guidelines in NMKL procedure No. 19 provide several different procedures, which may be applied in the sensory evaluation of food packaging, and point out critical aspects and potential pitfalls of this work. The procedure focuses mainly on the sensory aspects of packaged foods relating to odour and taste evaluation, and consequently does not deal with issues such as the design and practical usability of the packaging. The field of application is wide and covers issues such as continuous production control of incoming materials, evaluation of storage conditions for packaged goods, and controls to ensure compliance with applicable rules and regulations.

The main change in this new version of the procedure is an update of the list of references. In addition, minor editorial corrections are made on the main content.


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NordVal International

NordVal International is an independent third party that evaluates the quality characteristics and applications of alternative chemical and microbiological methods in the analysis of food, water, feed and environmental samples.

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The methods are in either Danish, Swedish or Norwegian combined with English. Most methods are also available in a Finnish/English version. All methods are in the PDF format. 


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NMKL – NordVal International
c/o Institute of Marine Research
P.O. box 1870 Nordnes
5817 Bergen, Norway

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by telephone: +47 9026 3022
or by e-mail: post@NMKL.org