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Interlaboratory proficiency test 02/2015 - a-chlorophyll, colour, conductivity, nutrients, pH and turbidity in natural waters
ISBN (pdf):978-952-11-4495-0 
Julkaistu:2015 
Julkaisusarja ja numero:Reports of the Finnish Environment Institute 17/2015 
Kieli:englanti 
Kustantaja:Finnish Environment Institute 
Saatavuus (pdf):http://hdl.handle.net/10138/154492 
Sivumäärä:89 
Tekijät:Mirja Leivuori; Teemu Näykki; Riitta Koivikko; Katarina Björklöf; Keijo Tervonen; Sari Lanteri; Ritva Väisänen; Markku Ilmakunnas  

48.00 €

Proftest SYKE carried out the proficiency test for analysis of a-chlorophyll, colour, conductivity, nutrients, pH and turbidity in natural waters in February 2015. In total 35 laboratories participated in this proficiency test. The sample types were: synthetic sample, brackish and natural water. Calculated concentrations, the robust mean or mean of the results reported by the participants were used as the assigned values for measurements. The evaluation of the performance of the participants was carried out using z score. In total, 89 % of the total data in this proficiency test were satisfactory when the deviations of 2.5–35 % from the assigned values were accepted.


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