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Cost for participation is £614 + 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 17043 and will be in the range 1 mg to 20 mg.

Additional foil shims will be charged at £282.00 + 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 2nd January 2024

Round 30 Registration Deadline

15th March 2024

Round 30 Sample Despatch

25th April 2024

Round 30 Results Submission

17th May 2024

Round 30 Report Issue

27th June 2024

Round Registration Opens 2nd January 2024

Round 31 Registration Deadline

30th August 2024

Round 31 Sample Despatch

26th September 2024

Round 31 Results Submission

17th October 2024

Round 31 Report Issue

21st November 2024


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