TY  -  
T1  - Interlaboratory Proficiency Test 13/2017 - Oil hydrocarbons in water and soil 
SN  - 978-952-11-4922-1 / 1796-1726 
UR  - http://hdl.handle.net/10138/233443 
T3  - Reports of the Finnish Environment Institute 8/2018 
A1  - Koivikko, Riitta; Nuutinen, Jari; Ilmakunnas, Markku 
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PB  - Finnish Environment Institute 
Y1  - 2018 
LA  - en 
AB  - Proftest SYKE carried out the proficiency test (PT) for analysis of oil hydrocarbons in water and soil in November 2017. Three types of samples were delivered to the participants: synthetic sample, surface water and soil samples. In total, 16 participants joined in the PT. In this proficiency test 76 % of the results were satisfactory when deviation of 20–40 % from the assigned value was accepted.
Basically, either the calculated concentration, the robust mean, or the median of the results repo... 
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KW  - pätevyyskoe; laboratoriot; pätevyys; hiilivedyt; maa-analyysi; vesianalyysi 
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