Test details
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NW 02/2026 - Natural water analyses I
Proftest Syke will organize a proficiency test (PT) for the analysis of alkalinity, conductivity, NH4-N, NO2-N+NO3-N, Ntot, PPO4, PO4-Pdissolved, Ptot, Ptot, dissolved, and pH in natural waters.
The purpose of this proficiency test is to ensure the comparability and accuracy of the results of the participants. About 35 laboratories are expected to participate in this proficiency test. The measurands and samples of this proficiency test are included in the Water chemistry scheme of the Proftest Syke accreditation scope (www.finas.fi/sites/en).
Registration is open until 23 January 2026
Sample delivery date is 17 February
2026.
The final report for the proficiency test will be published in June 2026.
The final report for the proficiency test will be published in June 2026.