MET 05/2022 - Metals in natural water


Proftest SYKE will organize a proficiency test for the analysis of metals and mercury in natural waters. The measurands for the synthetic sample and ground water as well as natural water samples are: Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, Hg, K, Mg, Mn, Mo, Na, Ni, Pb, S, Sb, Se, Sn, Sr, Ti, Tl, U, V, and Zn.

The purpose of this proficiency test is to ensure the comparability and accuracy of the results of the participants. Depending on the measurement, about 10 – 15 laboratories are expected to participate in this proficiency test.

The organizing of this proficiency test is included in the accreditation scope (, with exceptions for measurands Be and Tl.

Registration deadline is on 25 March 2022.
Registration is done via the electronic client interface, ProftestWEB: If there are problems when using ProftestWEB or you need username and password, please contact

Sample delivery date is on 26 April 2022.

The final report for the proficiency test will be published in September 2022.


MET 05-2022 Infoletter_en.pdf


Published 2022-02-24 at 9:22, updated 2022-02-24 at 9:22