Interlaboratory Comparison Testing

Interlaboratory Comparison (ILC) tests are used to assess the performance of a laboratory or to validate a test method. 

ILC testing at GEVES

Interlaboratory Comparison (ILC) tests are used either to assess the performance of a laboratory or to validate a test method. These two types of ILC are known as Proficiency Testing and  Method Validation.

Proficiency testing is used to assess the competence of a laboratory. It is carried out in order to monitor approved laboratories, who also use ILCs to adjust their testing process at the beginning of the seed season. Proficiency tests are also requested by GNIS-SOC for laboratory approvals, and by the French Seed Association (UFS) as decided by the purity, germination and health quality commissions of the flower and vegetable sections.

Method validation testing is used to test a method in different laboratories with different operators. It plays a key role in the method development process, in particular for international research projects.

It is also possible to organise mini-comparisons with two or more participating laboratories, on the same basis as an ILC. The organisation of these mini-comparisons and the statistical processing of results is adapted to the smaller number of laboratories involved.

Proficiency testing, method validation, and mini-comparison ILCs can be organised by contacting the SNES.

At GEVES, ILCs 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 ILC’s prescribing body (SOC, UFS or other), GEVES guarantees total anonymity and confidentiality. This is ensured by assigning a code identity to both participants and samples.

GEVES has developed an online platform that enables ILC participants to access documents and files online for each of their ILCs, and to acknowledge receipt of their samples.

 

Go to the ILC website

 

 

ILC Programme

Type of ILC
SpeciesTest or pathogen
GEVES Contact
ILC Code
Delivery of samples
Results returned to participantReport available
ProficiencyMelonPathology: Acidovorax citrulliSNES2018-GEVES-MELON-BA2nd ssemester*
ProficiencyPoisPathology: Ascohyta pisi, M. pinodes, P.medicaginisSNES2018-GEVES-POIS-MY2nd ssemester*
ProficiencyLinPathology: Botrytis cinerea, Colletotrichum lini, Alternaria linicolaSNES2018-GEVES-LIN-MY1st semester*
ProficiencyBléPathology: Tilletia spp.SNES2018-GEVES-BLE-MY2nd ssemester*
ProficiencyChouPathology: Leptosphaeria maculansSNES2018-GEVES-CHOU-MY2nd ssemester*
ProficiencyOignon/Poireau
Allium cepa L. / Allium porum L.
GerminationSNES2018-UFS-ALLIUM-GE03/05/201829/06/201827/07/2018
ProficiencyChou
Brassica oleracea L.
GerminationSNES2018-UFS-CHOU-GE03/05/201815/06/201829/06/2018
ProficiencyPersil

Petroselinum crispum (Mill.) Fuss

GerminationSNES2018-UFS-PERSIL-GE03/05/201829/06/201806/07/2018
ProficiencyMâche

Valerianella locusta (L.) Laterr.

Thousand Seed WeightSNES2018-UFS-MACHE-MMS22/05/201829/06/201807/12/2018
ProficiencyAubergine

Solanum melongena L.

Thousand Seed WeightSNES2018-UFS-AUBERGINE-MMS04/06/201829/06/201807/12/2018
ProficiencyMâche

Valerianella locusta (L.) Laterr.

Dénombrement sur poids de puretéSNES2018-UFS-MACHE-PS04/06/201829/06/201807/12/2018
ProficiencyEpinard

Spinacia oleracea L.

Dénombrement sur poids de puretéSNES2018-UFS-EPINARD-PS04/06/201829/06/201807/12/2018
ProficiencyNavet

Brassica rapa L.

Dénombrement sur poids de puretéSNES2018-UFS-NAVET-PS04/06/201829/06/201807/12/2018
ProficiencyMelon

Cucumis melon L.

Water ContentSNES2018-UFS-MELON-TE04/06/201829/06/201807/12/2018
ProficiencyHaricot

Phaseolus vulgaris L.

Water ContentSNES2018-UFS-HARICOT-TE04/06/201829/06/201807/12/2018
ProficiencyTournesol

Helianthus annuus L.

Germination

(3 samples)

SNES2018-SOC-TOURNESOL-GE24/09/201802/11/201816/11/2018
ProficiencyPois

Pisum sativum L.

Germination

(3 )

SNES2018-SOC-POIS-GE8/10/201816/11/201830/11/2018
ProficiencyLuzerne

Medicago sativa L.

Germination

(3 samples)

SNES2018-SOC-LUZERNE-GE15/10/201823/11/201807/12/2018
ProficiencyLuzerne

Medicago sativa L.

Dénombrement sur poids de pureté

(2 samples)

SNES2018-SOC-LUZERNE-DPP15/10/201823/11/201807/12/2018
ProficiencyCéréalesGermination

(3 samples)

SNES2018-CEREALES-GE12/11/201821/12/201918/01/2019
ProficiencySoja

Glycine max (L.) Merr.

 

Germination

(3 samples)

SNES2018-SOJA-GE14/01/201908/02/201901/03/2019
ProficiencyRay Grass

Lolium perenne L.

Germination

(3 samples)

SNES2018-RAYGRASS-GE04/02/201912/04/201903/05/2019
ProficiencyRay Grass

Lolium perenne L.

Dénombrement sur poids de pureté

(2 samples)

SNES2018-RAYGRASS-DPP04/02/201922/03/20195/04/2019

*Depending on availability of seed lots

 

Participate in an ILC

 

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-training with seed control kits or reference samples).

Contact

To sign up for an ILC*, to request the organisation of an ILC or mini-comparison, or for assistance following your participation in an ILC, please contact our ILC correspondents:

For seed quality ILC testing: SNES

Annie Saussaye

Email: service.clients@geves.fr

Tel: +33 (0)2 41 22 58 22

For ILC testing using biochemical and biomolecular techniques: BioGEVES

Patricia Lem

Email: patricia.lem@geves.fr

Tel: +33 (0)5 46 68 31 01

 

*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.