The preliminary results for the proficiency tests will be delivered to the participants within 1-2 weeks after reporting the results. The final report will be published within 2-6 months.
The final report is published in English, when more than 10% of the participants are international, otherwise the report is published in Finnish.
The reports are listed in the form: Name of the report (publication number).
2023 | 2022 | 2021 | 2020 | 2019 | 2018
Proficiency test 06/2023 (SykeRe 27/2023)
Radon measurements in ground water
Interlaboratory comparison 05/2023 (Sykere 37/2023)(helda.helsinki.fi)
PAH measurements from indoor air samples
Pätevyyskoe 04/2023 (SykeRa 18/2023)
Jätevesimääritykset I
Proficiency test 03/2023 (Sykera 19/2023)
Natural water analyses
Proficiency test 02/2023 (SykeRe 14/2023)
Swimming pool water analyses
Pätevyyskoe 15/2022 (SykeRa 11/2023)
Jätevesimääritykset II
Proficiency Test 12/2022 (SykeRe 10/2023)
Wastewater and fly ash metal analyses
Interlaboratory comparison 11/2022 (SykeRe 7/2023)
VOC measurements from indoor air samples
Proficiency Test 09/2022 (SYKEre 1/2023)
Drinking water analyses
Proficiency Test 08/2022 (SykeRe 4/2023)
Gross and net calorific values of solid fuels
Interlaboratory comparison 07/2022 (SYKEre 45/2022)
AOX in natural and wastewaters
Proficiency Test 06/2022 (SYKEre 36/2022)
Natural water analyses II
Proficiency Test 05/2022 (SYKEre 35/2022)
Ground and natural water metal analyses
Interlaboratory comparison 04/2022 (SYKEre 43/2022)
Benthic diatoms
Pätevyyskoe 03/2022 (SYKEra 30/2022)
Jätevesimääritykset I
Proficiency Test 02/2022 (SYKEre 28/2022)
Natural water analyses I
Proficiency Test 01/2022 (SYKEre 21/2022)
Swimming pool water analyses
Laboratorioiden välinen pätevyyskoe 14/2021 (SYKEra 14/2022)
Jätevesimääritykset II
Interlaboratory Proficiency Test 13/2021 (SYKEre 13/2022)
Oil hydrocarbons in water and soil
Interlaboratory Proficiency Test 10/2021 (SYKEre 16/2022)
Wastewater and soil metal analyses
Laboratorioiden välinen pätevyyskoe 08/2021 (SYKEra 49/2021)
Talousvesimääritykset
Interlaboratory Proficiency Test 07/2021 (SYKEre 7/2022)
Gross and net calorific values in fuels
Interlaboratory Proficiency Test 06/2021 (SYKEre 42/2021)
Radon in ground water
Interlaboratory Proficiency Test 05/2021 (SYKEre 38/2021)
Natural and drinking water metal analyses
Interlaboratory Proficiency Test 04/2021 (SYKEre 41/2021)
Leaching behavior test: Up-flow percolation test
Laboratorioiden välinen pätevyyskoe 03/2021 (SYKEra 35/2021)
Jätevesimääritykset I
Interlaboratory Proficiency Test 02/2021 (SYKEre 31/2021)
Natural water analyses
Interlaboratory Proficiency Test 01/2021 (SYKEre 26/2021)
Swimming pool water analysis
Interlaboratory Proficiency Test 18/2020 (SYKEre 22/2020)
PAH measurements from indoor air samples
Laboratorioiden välinen pätevyyskoe 16/2020 (SYKEra 12/2021)
Alkaliniteetti, ravinteet, pH, sähkönjohtavuus ja väri jätevesistä
Interlaboratory Proficiency Test 15/2020 (SYKEre 14/2021)
VOC compounds in water and soil
Interlaboratory Proficiency Test 14/2020 (SYKEre 29/2021)
Phytoplankton
Interlaboratory Proficiency Test 12/2020 (SYKEre 13/2021)
Metals in waste water and sludge
Interlaboratory Comparison 11/2020 (SYKEre 4/2021)
VOC measurements from indoor air samples
Interlaboratory Proficiency Test 10/2020 (SYKEre 11/2021)
Taxonomic identification of macroinvertebrates
Laboratorioiden välinen pätevyyskoe 08/2020 (SYKEra 2/2021)
Talousvesimääritykset
Interlabotatory Proficiency Test 07/2020 (SYKEre 46/2020)
Gross and net calorific values in fuels
Interlaboratory Proficiency Test 06/2020 (SYKEre 38/2020)
Chlorophyll a, oxygen, salinity, SiO2, TIC, and TOC in natural waters
Interlaboratory Proficiency Test 05/2020 (SYKEre 37/2020)
Metals in natural waters
Interlaboratory Proficiency Test 04/2020 (SYKEre 40/2020)
Leaching behavior test for waste material: Two stage batch leaching test
Laboratorioiden välinen pätevyyskoe 03/2020 (SYKEre 23/2020)
BOD7, CODCr, CODMn, kiintoaine, Na ja TOC jätevesistä
Interlaboratory Proficiency Test 02/2020 (SYKEre 18/2020)
Alkalinity, conductivity, pH and nutrients in natural waters
Interlaboratory Proficiency Test 01/2020 (SYKEre 14/2020)
Swimming pool water analysis
Laboratorioiden välinen pätevyyskoe 12/2019 (SYKEra 11/2020)
Ravinteet, kloridi, pH, sulfaatti, sähkönjohtavuus ja väri jätevesistä
Interlaboratory proficieny test 11/2019 (SYKEre 10/2020)
Metals in Waste waters
Interlaboratory Proficiency Test 10/2019 (SYKEre 3/2020)
VOC-measurement from indoor air samples
Interlaboratory Proficiency Test 07/2019 (SYKEre 48/2019)
Gross and net calorific values in fuels
Interlaboratoty Proficiency Test 06/2019 (SYKEre 25/2019)
Radon in ground water
Interlaboratory Proficiency Test 04/2019 (SYKEre 35/2019)
Metals in natural water and sediment
Laboratorioiden välinen pätevyyskoe 03/2019 (SYKEra 29/2019)
BOD7, CODCr, CODMn, kiintoaine, Na ja TOC jätevesistä
Intterlaboratory Proficiency Test 02/2019 (SYKEre 23/2019)
Chlorophyll a, colour, conductivity, nutrients, pH and turbidity in natural waters
Interlaboratory Proficiency Test 01/2019 (SYKEre14/2019)
Swimming pool water analysis
Interlaboratory Comparison Test 15/2018 (SYKEre 25/2018)
Soil improver maturity test
Laboratorioiden välinen pätevyykoe 14/2018 (SKEra 13/2019)
Alkalinitetti, ravinteet, pH, sähkönjohtavuus ja väri jätevesistä
Interlaboratory Proficiency Test 13/2018 (SYKEre 16/2019)
Leaching behavior test for solid waste material: One stage batch leaching test
Laboratorioiden välinen pätevyyskoe 12/2018 (SYKEra 12/2019)
PAH- ja PCB-yhdisteet sekä öljyhiilivedyt maasta
Interlaboratory Proficiency Test 10/2018 (SYKEre 11/2019)
Metals in waste water and compost
Interlaboratory Comparison 09/2018 (SYKEre 3/2019)
VOC measurement from indoor air samples
Laboratorioiden välinen pätevyyskoe 08/2018 (SYKEra 1/2019)
Talousvesimääritykset
Interlaboratory Proficiency Test 07/2018 (SYKEre 28/2018)
Gross and net calorific values in fuels
Interlaboratory Proficiency Test 06/2018 (SYKEre 21/2018)
Chlorophyll a, oxygen, salinity, SiO2, TIC and TOC in natural waters
Interlaboratory Proficiency Test 05/2018 (SYKEre 22/2018)
Metals in natural waters and soil
Laboratorioiden välinen pätevyyskoe 04/2018 (SYKEra 17/2018)
BOD7, Ca, CODCr, CODMn, K, kiintoaine, Mg, Na ja TOC jätevesistä
Interlaboratory Proficiency Test 03/2018 (SYKEre 11/2018)
Alkalinity, pH, nutrients and conductivity in natural waters
Interlaboratory Proficiency Test 01/2018 (SYKEre 10/2018)
Swimming pool water analysis