Issues relating to participation
The scheme is opened to all laboratories using multielement techniques. To register, laboratories must complete the registration form. Subscriptions are available on an annual basis, for three rounds, each including three proficiency testing materials, starting in January of each year. However, new participants may join at any time during the year. Costs are then adjusted proportionally to the number of remaining shipments. Once we receive a subscription request, the new participant is assigned a participant ID, as well as a validation code to be used for reporting results.
For more information, please read the Participant's Guide.