Accreditation's gate in France

Interlaboratory Comparisons

Interlaboratory Comparisons

Interlaboratory Comparisons news

Click here to consult the latest news on the Interlaboratory Comparisons section (in French).
Click here to consult the documentation relating to Interlaboratory Comparisons (in French).

Find Organisers of Interlaboratory Comparisons

A list of accredited and non-accredited Interlaboratory Comparisons bodies is available on the European Proficiency Testing Information System (EPTIS)

To consult the programme of current and forthcoming comparisons or register, do not hesitate to consult the LNE website.

Bodies are accredited by Cofrac for the organisation of interlaboratory comparisons concern the following testing fields (in French):

- Agribusiness
- Building – Civil engineering
- Consumer products – Sports and leisure
- Medical biology
- Energy, heating, air conditioning and water
- Environment
- Materials

The list of all organisers of interlaboratory comparisons accredited by Cofrac is available here (in French).

To find out an accredited organiser of interlaboratory comparisons for a given field of activity, please use our advanced search tool (in French).


Participation in interlaboratory comparisons or tests enables laboratories to guarantee the quality of their results and demonstrate their competence in their fields of activity.
Cofrac provides its laboratories and their clients with a recently published ILAC brochure, The benefits of participating in PT, that sets out the benefits that can be enjoyed by all parties with an interest in accreditation: accreditation bodies, laboratories, professional federations, clients, ordering parties, public authorities, etc. We invite you to familiarise yourself with this document and help to circulate it as widely as possible.

Additional information

Important note: the information given on these topics is neither exhaustive nor contractually binding. It is up to the user to check the information with the organisers of interlaboratory comparisons concerned.

Contacts :
Julien SENEZ : Accreditation Manager
Tel.: 00-33-1-44-68-82-62| e-mail

Florence SIMONUTTI : Deputy to the Laboratories section Manager
Tel.: 00-33-1-44-68-76-28 | e-mail