|ISBN (pdf):||978-952-11-4676-3|| |
|Julkaisusarja ja numero:||Reports of the Finnish Environment Institute 12/2017|| |
|Kustantaja:||Suomen ympäristökeskus|| |
|Saatavuus (pdf):||http://hdl.handle.net/10138/181510|| |
|Tekijät:||Riitta Koivikko, Mirja Leivuori, Marika Kaasalainen, Keijo Tervonen, Sari Lanteri and Markku Ilmakunnas|| |
Proftest SYKE carried out the proficiency test in cooperation with the Water Protection Association of the River Kokemäenjoki (KVVY) for the laboratories conducting leaching tests for solid waste samples in November 2016. In this proficiency test, the results of the two stage batch leaching test (EN 12457-3) for fly ash samples were compared and evaluated. In total, 12 participants joined in the proficiency test.
Either the robust mean or the mean of the results reported by the participants was chosen to be the assigned value for the measurands. The performance of the participants was evaluated by using z scores. In this proficiency test 87 % of the results were satisfactory when the deviation of 0.2–0.3 units for pH values and 10–40 % for the other measurands was accepted from the assigned value.
Warm thanks to all the participants!