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Cost for participation is £506 + VAT per site, for which participants will be sent one foil shim (from a choice of three different sizes) and one simulated probe washing.

The probe washings are accredited under ISO/EN17043 and will be in the range 1 mg to 20 mg.

Additional foil shims will be charged at £232.00 + VAT each.

(Please note that a charge for shipping by dangerous goods courier is included in this price for participants in mainland Great Britain, but that additional charges will be made for shipping to all other locations.)




Round Registration Opens 8th February 2021

Round 24 Registration Deadline

2nd April 2021

Round 24 Sample Despatch

6th May 2021

Round 24 Results Submission

28th May 2021

Round 24 Report Issue

8th July 2021

Round Registration Opens 8th February 2021

Round 25 Registration Deadline

17th September 2021

Round 25 Sample Despatch

21st October 2021

Round 25 Results Submission

19th November 2021

Round 25 Report Issue

16th December 2021


Companies participating in the Scheme will be listed the following year on this website. An option to opt out is available.