New NordVal International certificates

A new NordVal International certificate has been issued for Compact Dry YM RAPID from HyServe. Compact Dry are ready-to-use dry media sheets comprising culture medium and a cold-soluble gelling agent. The Compact Dry YM Rapid method contains chromogenic medium and selective agents for the detection and enumeration of yeasts and moulds after 3 days of incubation. Further information is given in the certificate. A validation of Compact Dry YM RAPID has been performed according to the NordVal validation protocol No. 1 and ISO16140-2. The performance of Compact Dry YM RAPID was compared against the reference method ISO 21527-1:2008. The results obtained document that Compact Dry YM RAPID provides equivalent results to the reference method in a broad range of foods with an aw of >0.95. Like the reference method, it is not intended for mould spores or for heat resistant mould species. See the certificate here.


NordVal International Certificate 037 issued to Bio-Rad for "iQ-Check® Listeria monocytogenes II" has been renewed. The method describes sample preparation according to one of three protocols followed by real-time PCR using florescent probes. An extension study has been performed to ensure compliance with ISO 16140-2 and NordVal validation protocol No. 1. By reviewing the results, NordVal International concludes, that "iQ-Check® Listeria monocytogenes II" for detecting Listeria monocytogenes provides results equivalent to the results from the reference method when applied for detection in a broad range of foods and environmental samples. See the certificate here.


New Nordval Certificate 049 issued to BioRad for RAPID´Staph. RAPID’Staph is based on enumeration on an optimised Baird-Parker formula for enumeration of S. aureus in 24 h at 37° C. Some Staphylococcus coagulase positive strains can give colonies with a small or no halo after 24 hours of incubation. An additional incubation of 24 hours could be necessary to see the halo. RAPID´Staph is applicable for a broad range of foods. The validation is performed according to ISO 16140-2 and NordVal Validation Protocol 1. See the certificate here.



The general secretariat of NMKL has moved to Denmark

As from 1 September 2016 the general secretariat of NMKL has moved from the Norwegian Veterinary Institute to the Technical University of Denmark. A big thank you to Hilde Skår Norli, the former general secretary, and Nina Bakkelund, the former secretary, for their huge efforts during the past years! Nina Skall Nielsen is the new general secretary and Kirsten Becker Hansen the new secretary. Please note: new address!


New issue of NMKL Newsletter

In NMKL Newsletter No. 93 you can read about

- Authorisation of using NMKL methods according to Microbiological Criteria

- New guide in verification of microbiological methods

- The next NMKL Secretary General

- Upcoming events; seminar on molecular methods, international symposium on new trends for multi-component analysis and workshop regarding NRL

- New protocol for the validation of alternative methods

- New rapid method for the detection of Salmonella, only 5.5 hours

See the Newsletter here


Application forms

Would you like to use the services of NordVal International to certify your alternative microbiological or chemical method?

Please complete the application form for a NordVal certificate, which is linked to here.


The NordVal certificate is valid for two years. 

The application form for renewal of a NordVal certificate is linked to here.


List of NMKL technical reports


NordVal International's technical committees

NordVal International receives many applications and, consequently, regularly seeks members to its technical committee. If you are interested in contributing to its work, ref. below-mentioned description of functions, please contact the NMKL secretariat. To see description of functions please click here


List of NordVal certificates

Aerobic microorganisms:

NordVal 033  HyServe Compact Dry TC, HyServe GmbH &Co KG,  expires: 01.12.18    

NordVal 018  Hygicult TPC, Orion Diagnostica,  expires: 01.02.19


Bacillus cereus

NordVal 045  HyServe Compact Dry X-BC, HyServe GmbH &Co KG, expires: 01.10.18



NordVal 017  Campylobacter Real-time PCR, Eurofins Steins,  expires: 01.04.19

NordVal 039  BAX ® System Real-Time PCR Assay, Thermo Fisher Scientific, expires: 01.12.19


Coliforms, E.coli & E.coli O157

NordVal 014  3M Petrifilm Coliforms/ E.coli, 3M Health Care, expires: 01.06.19

NordVal 020  RAPID' E.Coli2, Bio-Rad, expires: 01.12.19

NordVal 035  HyServe Compact Dry CF Total Coliforms, HyServe GmbH &Co KG, expires: 01.12.18

NordVal 036  HyServe Compact Dry EC Total Coliforms/E.coli, HyServe GmbH &Co KG, expires: 01.12.18



NordVal 034  HyServe compact Dry ETB, HyServe GmbH &Co KG, expires: 01.12.18



NordVal 047  HyServe compact Dry ETC, HyServe GmbH &Co KG, expires: 15.02.19



NordVal 022  RAPID' L.mono, Bio-Rad, expires: 01.05.20

NordVal 025  foodproof Listeria monocytogenes, Biotecon Diagnostics, expires: 10.06.19

NordVal 037  iQ-Check® Listeria monocytogenes II, Bio-Rad, expires: 12.06.20



NordVal 001 Transia Plate Salmonella Gold, BioControl Systems Inc, expires 05.10.19

NordVal 023  foodproof Salmonella detection kit...,Biotecon Diagnostics, expires 10.06.19

NordVal 030  Dupont Bax system PCR Assay, OXOID A/S Thermo Fisher, expires 01.05.20

NordVal 032  Rapid’Salmonella, Bio-Rad, expires:01.12.18

NordVal 038  iQ-Check TM Salmonella II kit, Bio-Rad, expires: 31.12.19

NordVal 041  Salmonella detection method by real-time PCR, Eurofins, expires: 08.03.20

NordVal 046 Salmonella Velox, DNA Diagnostic A/S, expires: 12.09.19



NordVal 042  HyServe Compact Dry X-SA, HyServe GmbH & Co. KG, expires:01.06.2019

NordVal 049 RAPID’Staph, Bio-Rad, expires: 20.05.20


Yeast and mold

NordVal 043  HyServe Compact Dry YM, HyServe GmbH & Co. KG, expires: 01.06.2019

NordVal 050 HyServe CompactDry YM RAPID, HyServe GmbH & Co. KG, expires: 15.06.2020


Chemical methods

NordVal 048  LactoSens® 0.01%, DirectSens GmbH, expires: 15.20.2020





NordVal validation protocol


Microbiological analysis: Link to the NordVal International validation protocol No. 1 for microbiological methods (June 2016, ed. Sept 2017) (harmonises with ISO 16140-2:2016) is here


Chemical analysis: Link to the NordVal International validation protocol No. 2 for chemical methods is here


List of NMKL Procedures

No 1, 2nd Ed. 2005 Kalibrering och kontroll av vågar på laboratorier. Calibration and performance checking of laboratory balances

No 3, 1996  Kontrollkort och kontrollprov i den interna kvalitetskontrollen på kemiska livsmedelslaboratorier. Control charts and control materials in internal quality control in food chemical laboratories

No 4, 3rd Ed., 2009  Validering av kjemiske analysemetoder. Validation of chemical analytical methods

No 5, 2nd Ed. 2003 Skattning och angivande av mätosäkerhet vid kemiska analyser. Estimation and expression of measurement uncertainty in chemical analysis

No 6, 2nd Ed. 2016 Generelle retningslinier for kvalitetssikring af sensoriske laboratorier. (Yleiset ohjeet aistinvaraisten laboratorioiden laadunvarmistukseen)

No 7, 1998 Kontrol af UV/VIS spektrofotometre. Checking of UV/VIS spectrophotometers

No 8, 4th Ed. 2008 Måleusikkerhet ved kvantitativ mikrobiologisk undersøkelse av næringsmidler. Measurement of uncertainty in quantitative microbiological examination of foods

No 9, 2nd Ed., 2007 Utvärdering av det systematiska felet med användning av certifierade referensmaterial. Evaluation of method bias using certified reference materials.

No 10, 2001 Kontroll av mikrobiologiske dyrkningsmedier. Control of Microbiological Media (2nd Ed. 2018, English)

No 11, 2nd Ed. 2010 Sensorisk bedømmelse av drikkevann. Procedure for sensory analysis of drinking water
Juomaveden aistinvarainen arviointi.

No 12, 2nd Ed., 2014 Håndbok i prøvetaking av næringsmidler. Guide on sampling for analysis of foods

No 13, 2003 Volumentrisk kontrol. Volumetric control

No 14, 2004 SENSVAL: Retningslinjer for egenkontroll i sensoriske analyselaboratorier. SENSVAL: Guidelines for internal control in sensory analysis laboratories

No 16, 2005 (2007) Sensorisk Kvalitetskontroll. Sensory quality control. Aistinvarainen laadunvalvonta

No 17, 2006 Kravspesifikasjoner ved kjøp av analysetjenester. Guidelines for requirement specifications for food analyses.

No 18, 2006 Bruk av referansematerialer, referansestammer og kontrollkort i mikrobiologiske næringsmiddellaboratorier. The use of reference materials, reference strains and control charts in a food microbiological laboratory

No 19, 2007 Riktlinjer för sensorisk bedömning av livsmedelsförpackningar. Guideline for sensorial Analysis of Food containers/packages

No 20, 2007 Evaluering av resultater fra kvalitative metoder. Evaluation of results from qualitative methods

No 21, 2nd Ed. 2016 Guide for sensory analysis of fish and shellfish (Available in English and Finnish)

No 22, 2008 Anvisnigar för värdering av immunokemiska testkit för livsmedelsanalys. Considerations regarding evaluation of immunochemical test kits for food analysis
No 23, 2008 Handledning i kvalitetssäkring för mikrobiologiska laboratorier. Guide on quality assurance in microbiological laboratories   

No 24,  2010 Veiledning i kvalitetssikring for kemiske levnedsmiddellaboratorier. Guidelines for quality assurance for food chemical laboratories  (also available in Finnish)   

No 25, 2014  Utbyte (Recovery) vid kemiska analytiska mätningar. Recovery information in analytical measurement

No 26, 2nd Ed., 2015 Kontroll och intern kalibrering av termometrar och temperaturkontroll på mikrobiologiska laboratorier. Control and internal calibration of thermometers and temperature control on microbiological laboratories

No 27, 2013  Måleusikkerhet i sensoriske analyser. Measurement uncertainty in sensory analysis

No 28, 2014 Guidelines for reporting sensory data

No 29, 2014 Guidelines for sensory analysis of meat and meat products (English and Finnish)

No 30, 2014 Statistical Evaluation of Results from Quantitative Microbiological Methods (English)

No 31, 2015 Guidelines for sensory evaluation of bread 

No. 32, 2017 Verification of microbiological methods (in English)



Price list for NMKL publications

Online subscription for 1-3 users per lab unit:

  • NMKL methods:    DKK 2250 / EUR 300  (first time for accessing the compile collection: DKK 4250 / EUR 600)
  • NMKL procedures: DKK 1300/ EUR 200 (first time for accessing the compile collection: DKK 3500 / EUR 500)
  • NMKL methods  + NMKL procedures:  DKK 3000 / EUR 400  (first time for accessing the compile collections: DKK 7000 / EUR 1000)

Single copies (sent by email as PDF file):

  •   NMKL methods: DKK 450 / EUR 60
  •   NMKL procedures: DKK 500 / EUR 65

Other publications are free.


OrderPublications may be ordered through the web shop or by sending an email to This email address is being protected from spambots. You need JavaScript enabled to view it.

Fee per invoice / order: DKK 40

Discounts: For education purposes, 25% discount.

PaymentAccording to invoice, within 30 days. All fees associated with the transfer have to be covered by the customer.

Bank: Danske Bank, Holmens Kanal 2-12, 1092 Copenhagen K

Account number:  4263972007

Swift code: DABADKKK

Iban number: DK 5730004263972007






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NordVal is an independent, 3rd party that evaluates the quality characteristics and applications of alternative microbiological methods in the analysis of food, water, feedd and environmental samples

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