Annual program: Proficiency tests and intercomparisons

On this page the proficiency tests and intercomparison planned to be organized in 2025 are listed. For each scheme the sample delivery time is informed. Approximately 2 months prior that, more information for the test will be available and also the registration opens. More information is given on page Current proficiency tests, you may also contact us: proftest@syke.fi. Measurements or schemes marked with asterisk (*) are not included in the accreditation scope.

Program for 2026 will be published in October-November 2025 and it will be then available on this page.

Annual programs 2025  |  2024

Annual program 2025

Sustainable use of water resources  |  Built environment  |  Hazardous subtances

2025

Sustainable use of water resources

Natural water

• Natural water analyses
  Test ID: NW 02/2025
  Sample delivery: Week 8
  Measurands: Chlorophyll a, conductivity, N_NH4, N_NO2+NO3, N_tot, P_PO4, P_tot, pH, suspended solids, turbidity, colour

Wastewater

• Wastewater analyses I
  Test ID: WW 03/2025
  Sample delivery: Week 12
  Measurands, Wastewater: BOD₇, COD_Cr, COD_Mn, Ca, K, Mg, Na, suspended solids, TOC 
  Natural water: BOD₇, COD_Mn
   
• Wastewater analyses II
  Test ID: WW 11/2025
  Sample delivery: Week 48
  Measurands: chloride, conductivity, colour, N_NH4, N_NO2+NO3, N_tot, P_PO4, P_tot, pH, sulphate

Drinking water

• Radon in ground water
  Test ID: RAD 05/2025
  Sample delivery: Week 19
  Measurands: ²²²Rn
   
• Drinking water analyses
  Test ID: DW 07/2025
  Sample delivery: Week 37
  Analyses: Alkalinity, fluoride, chloride, conductivity, hardness, pH, NO₂, NO₃, NH₄, Fe, Mn, Ca, K, Mg, Na, sulphate, TOC, turbidity

Intercomparison test for field measurements* 

• Test ID: KMV 08/2025
  Timing: September 2024
  Measurands: Conductivity, oxygen, pH, temperature, turbidity
  Place: Natural water body, Tampere

Built environment

Swimming pool water

• Test ID: SPW 01/2025
  Sample delivery: Week 5
  Measurands: Combined, free and total chlorine, KMnO₄, nitrate, pH, turbidity, urea
  Cooperation: Metropolilab Oy

Gross and net calorific values of solid fuels

• Test ID: CAL 06/2025
  Sample delivery: Week 36
  Measurands: Gross and net calorific value, moisture and ash content, volatile compounds, C, H, N, S, Cl*, F*
  Cooperation: Eurofins Environment Testing Finland Oy, Jyväskylä

Asbestos in building materials samples*

• Test ID: ABS 19/2025
  Sample delivery: Week 39
  Measurands: Analysis and identification of asbestos
  Cooperation: FIOH

Hazardous substances

Natural water and wastewater metal analyses

• Test ID: MET 04/2025
  Sample delivery: Week 18
  Analyses: Al, As, B, Ba, Cd, Co, Cr, Cu, Fe, Hg, Mn, Mo, Ni, Pb, Sb, Se, Ti, V, Zn 

Oil hydrocarbons in water and soil

• Test ID: OIL 10/2025
  Sample delivery: Week 45
  Measurands: C5-C10, >C10-C40, >C10-C21, >C21-C40

Annual program 2024

Sustainable use of water resources  |  Built environment  |  Hazardous subtances

2024

Sustainable use of water resources

Wastewater

• Wastewater analyses II
  Test ID: WW 14/2024
  Sample delivery: Week 48
  Analyses: Alkalinity, conductivity, colour, N_NH4, N_NO2+NO3, N_tot, P_PO4, P_tot, pH

Zoobenthos*

• Test ID: ZOO 12/2024
  Timing: November 2024
  Identification of benthic macroinvertebrates

Built environment

Man-made mineral fibres*

• Test ID: MMMF 10/2024
  Timing: September-October 2024
  Identification and counting of man-made mineral fibres 
  Cooperation: University of Turku

Hazardous substances

PAH and PCB compounds and oil hydrocarbons from soil

• Test ID: ORG 13/2024
  Sample delivery: Week 45
  Analyses: PAH compounds, PCB compounds, oil hydrocarbons >C10-C40