Interlaboratory Comparison Testing / PT
ILC testing at GEVES
Interlaboratory Comparison (ILC) tests are used either to assess the performance of a laboratory or to validate a test method.
Proficiency testing is used to assess the competence of a laboratory.
It is also possible to organise mini-comparisons with two or more participating laboratories, on the same basis as an PT. The organisation of these mini-comparisons and the statistical processing of results is adapted to the smaller number of laboratories involved.
Proficiency testing and mini-comparison PTs can be organised by contacting the SNES.
At GEVES, PTs are organised in accordance with the principles of the 17043 accreditation standard. The competence of the teams involved with regard to the tests and species concerned is instrumental.
Regardless of the framework chosen by the PT’s prescribing body (la Direction de la Qualité et du Contrôle officiel de SEMAE, UFS or other), GEVES guarantees total anonymity and confidentiality. This is ensured by assigning a code identity to both participants and samples.
ILC Programme
Contact information : eil.semences@geves.fr
For this PT, Participants are invited to use the website devoted
Purity Proficiency Tests (PT)
To register to purity: contact: eil.semences@geves.fr
Currently no upcoming PT
| Species | Test | EIL Code | Delivery of samples* | Results returned to participants | Report available | PT Registration: Participation in this PT is open to |
|---|---|---|---|---|---|---|
*Depending on availability of seed lots
The dates communicated here are subject to the avalability of lots meeting the required characteristics and to the validation of samples after quality control.
For this PT, Participants are invited to use the website devoted :
Germination Proficiency Tests (PT)
| Species | Test | EIL Code | Delivery of samples* | Results returned to participants | Report available | PT Registration: Participation in this PT is open to |
|---|---|---|---|---|---|---|
Parsley | Germination | 2025-GEVES-PERSIL-GE | 07/07/2025 | 05/09/2025 | 26/09/2025 | All laboratories Click here for pre-registration |
Protein peas | Germination | 2025-GEVES-POISPROT-GE | 15/09/2025 | 10/10/2025 | 14/11/2025 | All laboratories Click here for pre-registration |
Sunflower | Germination | 2025-GEVES-TOURNESOL-GE | 22/09/2025 | 17/10/2025 | 21/11/2025 | All laboratories Click here for pre-registration |
*Depending on availability of seed lots
The dates communicated here are subject to the avalability of lots meeting the required characteristics and to the validation of samples after quality control.
For this PT, Participants are invited to use the website devoted :
Detection of pathogens on seeds Proficiency Tests (PT)
| Species | Test or Pest | Method | EIL Code | Delivery of samples* | Statut |
|---|---|---|---|---|---|
Cucurbit | CGMV | Internal method (ELISA) | 2025 | Scheduled Click here for pre-registration | |
Sunflower | Plasmopora halstedii | GEVES method’s (grinding and qPCR) | 2025 | Scheduled Click here for pre-registration | |
Alfalfa | Ditylenchus dipsaci | GEVES method’s (SE-qPCR and morpho biometric identification) | 2025 | Scheduled Click here for pre-registration |
* Depending on availability of seed lots
The dates communicated here are subject to the avalability of lots meeting the required characteristics and to the validation of samples after quality control.
ILC assistance
Have you participated in a proficiency testing ILC?
GEVES can assist you in reviewing the report and implementing the necessary corrective action (training, double reading, self-testing with seed control kits or reference samples).
Contacts
For seed quality ILC testing (Purity, Germination, Detection of Pathogens on seeds) : SNES
- Fabienne BRUN
- eil.semences@geves.fr
- 02 41 22 58 91
For ILC testing using biochemical: BioGEVES
- Patricia LEM
- patricia.lem@geves.fr
- 05 17 06 96 13
*Participation in ILC testing organised within the framework of laboratory approval is compulsory for approved laboratories for the species and tests in their scope of approval.