TY  -  
T1  - Interlaboratory Proficiency  Test 11/2019. Metals in waste waters 
SN  - 978-952-11-5146-0 /  
UR  - http://hdl.handle.net/10138/313601 
T3  - Reports of the Finnish Environment Institute 10/2020 
A1  - Leivuori, Mirja; Koivikko, Riitta; Sara-Aho, Timo; Näykki, Teemu; Tervonen, Keijo; Lanteri, Sari; Väisänen, Ritva; Ilmakunnas, Markku 
A2  -  
PB  - Suomen Ympäristökeskus 
Y1  - 2020 
LA  - fi 
AB  - Proftest SYKE carried out the proficiency test (PT) for analysis of elements in waste waters in October-November 2019 (MET 11/19). The measurands for the synthetic and waste water samples were: Al, As, B, Ba, Ca, Cd, Co, Cr, Cu, Fe, Hg, K, Mg, Mn, Mo, Ni, Pb, Sb, Se, Sn, Sr, Ti, V, and Zn. In total 23 laboratories participated in the PT.  

In total, 89 % of the results evaluated with z scores were satisfactory when total deviation of 10–25 % from the assigned value was accepted. Of the result... 
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KW  - pätevyyskoe; jätevesi; vesianalyysi; pätevyys; laboratoriot 
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