Dates for the ring trials

Dates for the ring trials 2019:

Trial 35
Registration deadline: 18.02.2019
Dispatch of material: 11.03.2019
Last submission of results: 11.04.2019

Trial 36
Registration deadline: 23.09.2019
Dispatch of material: 07.10.2019
Last submission of results: 07.11.2019

Dates for the ring trials 2020:

Trial 37
Registration deadline: 12.02.2020
Dispatch of material: 02.03.2020
Last submission of results: 02.04.2020

Trial 38
Registration deadline: 12.10.2020
Dispatch of material: 26.10.2020
Last submission of results: 26.11.2020

Dates for the ring trials 2021:

Trial 39
Registration deadline: 10.02.2021
Dispatch of material: 22.02.2021
Last submission of results: 22.03.2021

Trial 40
Registration deadline: 01.10.2021
Dispatch of material: 11.10.2021
Last submission of results: 11.11.2021

Results of the cur­rent or pre­vi­ous exter­nal qual­ity con­trol run are avail­able at
To access the QuaDeGA plat­form the cen­ter ID (=participant´s num­ber with­out “TN”) and the indi­vid­ual pass­word are required. If the pass­word has been for­got­ten, con­tact: