The Environmental PTE is accredited to ISO 17043, and ensures that the performance of spectroscopic techniques and radiochemical separation procedures adopted by participating laboratories are regularly assessed. Participation in the exercise has also become important for laboratories in this field to demonstrate ongoing compliance for UKAS accreditation.
A range of samples are made by NPL, with examples including an alpha sample, beta sample, gamma sample and a solid matrix. Laboratories choose which sample types are applicable to their measurement capabilities. The samples are dispatched to the participants, who are given approximately four months to analyse the samples and submit the results to us. NPL compiles an exercise report and provides feedback to the laboratories on their performance. The exercises are now run on an annual basis by NPL. If you would like to find out how you can join the next Environmental PTE please contact us via the button below.
The 2018 Environmental Radioactivity Proficiency Test Exercise (PTE 2018) is now complete and the final report NPL Report IR 56 is now available. Please note that reports on previous exercises are also available.
The results of the 2018 Environmental PTE were presented at the last UK National Conference on Applied Radiation Metrology (CARM) at NPL in January 2020.
The 2019 Environmental Radioactivity Proficiency Test Exercise (PTE 2019) is now underway. Links to relevant documentation are listed below:
PTE 2019 Invitation Letter
PTE 2019 Techniques Form
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