Are you new to Supelco®
Proficiency Testing? Be sure to register your account details
in the PT Portal before placing your order.
This will provide access to data entry, reporting packets and final reports. Registrations will be approved shortly after your order is placed. For further questions, write to us at firstname.lastname@example.org.
When placing your order online, please indicate your study preference under the ′your reference′ column. Available studies can be viewed at the bottom of the page.
to learn more about Quick-Turn Studies (on-demand proficiency tests that are offered depending on lot availability). The Quick-Turn results are released within 48-72 hours whereas scheduled study reports are released within 21 days.
Proficiency testing samples are presented as single blind. No values for the samples are released until the testing period concludes.Proficiency Testing Schedule (2022-2023)Soils
LPTP22-S1 January 26 - March 11, 2022
LPTP22-S2 April 6 - May 20, 2022
LPTP22-S3 July 20 - September 4, 2022
LPTP22-S4 October 5 - November 18, 2022
LPTP23-S1 January 25 – March 10, 2023
LPTP23-S2 April 5 – May 19, 2023
LPTP23-S3 July 19 – September 1, 2023
LPTP23-S4 October 4 – November 17, 2023
Quick-Turn Study (on demand proficiency test that is offereddepending on lot availability)