Tekniska Verken i Linköping AB

Accreditation no: 0063

Org no:: 556004-9727
Phone:: 013-208000
Website:: www.tekniskaverken.se
Postal address:: Box 1500, 581 15 Linköping
Visiting address:: Brogatan 1, 582 78 Linköping · Show on map

Testing, SS-EN ISO/IEC 17025:2018

Latest decision date: 2025-10-27

Chemical analysis
Technical area	Method / procedure	Sample type / System / Product	Parameter / Properties	Equipment / Measurement principle	Flex	Business unit
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Aluminum, Al	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Arsenic, As	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Cadmium, Cd	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Calcium, Ca	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Chromium, Cr	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Cobalt, Co	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Copper, Cu	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Iron, Fe	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Lead, Pb	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Magnesium, Mg	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Manganese, Mn	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Mercury, Hg	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Nickel, Ni	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Phosphorus, P	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Potassium, K	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Silver, Ag	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Sodium, Na	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Sulfur, S	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Thalium, Tl	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Tin, Sn	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Drinking water	Zinc, Zn	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Aluminum, Al	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Arsenic, As	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Cadmium, Cd	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Calcium, Ca	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Chromium, Cr	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Cobalt, Co	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Copper, Cu	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Iron, Fe	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Lead, Pb	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Magnesium, Mg	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Manganese, Mn	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Mercury, Hg	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Nickel, Ni	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Phosphorus, P	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Potassium, K	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Silver, Ag	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Sodium, Na	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Sulfur, S	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Thalium, Tl	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Tin, Sn	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2	Fresh water	Zinc, Zn	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Aluminum, Al	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Cadmium, Cd	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Calcium, Ca	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Chromium, Cr	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Cobalt, Co	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Copper, Cu	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Iron, Fe	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Lead, Pb	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Magnesium, Mg	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Manganese, Mn	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Mercury, Hg	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Nickel, Ni	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Phosphorus, P	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Potassium, K	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Silver, Ag	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Sodium, Na	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Sulfur, S	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Tin, Sn	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN 16173	Sludges/sediments	Zinc, Zn	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Aluminum, Al	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Arsenic, As	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Cadmium, Cd	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Calcium, Ca	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Chromium, Cr	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Cobalt, Co	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Copper, Cu	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Iron, Fe	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Lead, Pb	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Magnesium, Mg	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Manganese, Mn	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Mercury, Hg	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Nickel, Ni	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Phosphorus, P	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Potassium, K	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Silver, Ag	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Sodium, Na	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Sulfur, S	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Thalium, Tl	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Tin, Sn	ICP-MS
Inorganic chemistry	SS-EN ISO 17294-2/SS-EN ISO 15587-2	Waste water/Leach water	Zinc, Zn	ICP-MS
Organic chemistry	Intern metod; "Flyktiga fettsyror"	Sludges/sediments	Acetic acid	GC-FID
Organic chemistry	Intern metod; "Flyktiga fettsyror"	Sludges/sediments	Butyric acid	GC-FID
Organic chemistry	Intern metod; "Flyktiga fettsyror"	Sludges/sediments	Heptanoic acid	GC-FID
Organic chemistry	Intern metod; "Flyktiga fettsyror"	Sludges/sediments	Hexanoic acid	GC-FID
Organic chemistry	Intern metod; "Flyktiga fettsyror"	Sludges/sediments	Isobutyric acid	GC-FID
Organic chemistry	Intern metod; "Flyktiga fettsyror"	Sludges/sediments	Isohexanoic acid	GC-FID
Organic chemistry	Intern metod; "Flyktiga fettsyror"	Sludges/sediments	Isovaleric acid	GC-FID
Organic chemistry	Intern metod; "Flyktiga fettsyror"	Sludges/sediments	Propionic acid	GC-FID
Organic chemistry	Intern metod; "Flyktiga fettsyror"	Sludges/sediments	Valerian acid	GC-FID
Sampling	SS 028148	-	Wastewater, sampling	-
Sampling	SS 028185, utg 1	-	Drinking- and bathing water, sampling for chemical analysis	-
Water analysis	ISO 17289	Drinking water	Oxygen, dissolved	Optical sensor
Water analysis	ISO 17289	Fresh water	Oxygen, dissolved	Optical sensor
Water analysis	ISO 17289	Waste water/Leach water	Oxygen, dissolved	Optical sensor
Water analysis	ISO 5664	Sludges/sediments	Ammonium as nitrogen	Titration
Water analysis	SS 028136	Drinking water	Chloride	Titration
Water analysis	SS 028136	Fresh water	Chloride	Titration
Water analysis	SS 028136	Waste water/Leach water	Chloride	Titration
Water analysis	SS-EN 12879	Sludges/sediments	Residue of ignition	Gravimetry
Water analysis	SS-EN 12880	Sludges/sediments	Dry matter	Gravimetry
Water analysis	SS-EN 13342	Sludges/sediments	Nitrogen, Kjeldahl	Titration
Water analysis	SS-EN 27888	Drinking water	Conductivity	Electrode
Water analysis	SS-EN 27888	Fresh water	Conductivity	Electrode
Water analysis	SS-EN 27888	Waste water/Leach water	Conductivity	Electrode
Water analysis	SS-EN 872	Sludges/sediments	Suspended solids	Gravimetry
Water analysis	SS-EN 872	Waste water/Leach water	Suspended solids	Gravimetry
Water analysis	SS-EN ISO 10523	Drinking water	pH	Electrode
Water analysis	SS-EN ISO 10523	Fresh water	pH	Electrode
Water analysis	SS-EN ISO 10523	Sludges/sediments	pH	Electrode
Water analysis	SS-EN ISO 10523	Waste water/Leach water	pH	Electrode
Water analysis	SS-EN ISO 15923-1	Drinking water	Ammonium as nitrogen	Discrete analysis/Photometry
Water analysis	SS-EN ISO 15923-1	Drinking water	Nitrate nitrogen	Discrete analysis/Photometry
Water analysis	SS-EN ISO 15923-1	Drinking water	Nitrite nitrogen	Discrete analysis/Photometry
Water analysis	SS-EN ISO 15923-1	Drinking water	Phosphate phosphorous	Discrete analysis/Photometry
Water analysis	SS-EN ISO 15923-1	Drinking water	Sulfate	Discrete analysis/Photometry
Water analysis	SS-EN ISO 15923-1	Fresh water	Ammonium as nitrogen	Discrete analysis/Photometry
Water analysis	SS-EN ISO 15923-1	Fresh water	Nitrate nitrogen	Discrete analysis/Photometry
Water analysis	SS-EN ISO 15923-1	Fresh water	Nitrite nitrogen	Discrete analysis/Photometry
Water analysis	SS-EN ISO 15923-1	Fresh water	Phosphate phosphorous	Discrete analysis/Photometry
Water analysis	SS-EN ISO 15923-1	Fresh water	Sulfate	Discrete analysis/Photometry
Water analysis	SS-EN ISO 15923-1	Waste water/Leach water	Ammonium as nitrogen	Discrete analysis/Photometry
Water analysis	SS-EN ISO 15923-1	Waste water/Leach water	Nitrate nitrogen	Discrete analysis/Photometry
Water analysis	SS-EN ISO 15923-1	Waste water/Leach water	Nitrite nitrogen	Discrete analysis/Photometry
Water analysis	SS-EN ISO 15923-1	Waste water/Leach water	Phosphate phosphorous	Discrete analysis/Photometry
Water analysis	SS-EN ISO 15923-1	Waste water/Leach water	Sulfate	Discrete analysis/Photometry
Water analysis	SS-EN ISO 15923-1/SS-EN ISO 6878	Fresh water	Phosphorous, total	Discrete analysis/Photometry
Water analysis	SS-EN ISO 15923-1/SS-EN ISO 6878	Waste water/Leach water	Phosphorous, total	Discrete analysis/Photometry
Water analysis	SS-EN ISO 20236	Drinking water	Total organic carbon, TOC	Combustion
Water analysis	SS-EN ISO 20236	Fresh water	Nitrogen, total, TNb	Combustion
Water analysis	SS-EN ISO 20236	Fresh water	Total organic carbon, TOC	Combustion
Water analysis	SS-EN ISO 20236	Waste water/Leach water	Nitrogen, total, TNb	Combustion
Water analysis	SS-EN ISO 20236	Waste water/Leach water	Total organic carbon, TOC	Combustion
Water analysis	SS-EN ISO 5815-1/ISO 17289	Fresh water	Biochemical oxygen demand, 7 days, BOD7	Optical sensor
Water analysis	SS-EN ISO 5815-1/ISO 17289	Waste water/Leach water	Biochemical oxygen demand, 7 days, BOD7	Optical sensor
Water analysis	SS-EN ISO 7027-1	Drinking water	Turbidity	Photometry
Water analysis	SS-EN ISO 7027-1	Fresh water	Turbidity	Photometry
Water analysis	SS-EN ISO 7887, del C	Drinking water	Colour	Discrete analysis/Photometry
Water analysis	SS-EN ISO 7887, del C	Fresh water	Colour	Discrete analysis/Photometry
Water analysis	SS-EN ISO 7887, del D	Drinking water	Colour	Comparator
Water analysis	SS-EN ISO 7887, del D	Fresh water	Colour	Comparator
Water analysis	SS-EN ISO 7887, del D	Waste water/Leach water	Colour	Comparator
Water analysis	SS-EN ISO 9963-1	Sludges/sediments	Alkalinity	Titration
Water analysis	SS-EN ISO 9963-1	Waste water/Leach water	Alkalinity	Titration
Water analysis	SS-EN ISO 9963-2	Drinking water	Alkalinity	Titration
Water analysis	SS-EN ISO 9963-2	Fresh water	Alkalinity	Titration
Water analysis	SS-EN ISO 9963-2	Sludges/sediments	Alkalinity	Titration

Microbiological analysis
Technical area	Method / procedure	Parameter / Properties	Flex	Business unit
Sampling	SS-EN ISO 19458	Water quality, sampling for microbiological analysis

The accredited body has been granted flexible scope. The body shall be able to provide an updated list of the current scope of accreditation upon request.

Regulations

STAFS 2020:1: Swedacs föreskrifter och allmänna råd om ackreditering

Calibration, SS-EN ISO/IEC 17025:2018

Latest decision date: 2026-02-13

Electricity and Magnetism
Measured quantity	Method / procedure	Product / object	Parameter / Properties	Expanded measurement uncertainty ±	Measuring range / measuring level	Business unit
Resistance	Intern metod; 5244 ver 2	Heat meters	ESR	14*10⁻⁶ ohm	100 ohm – 1000 ohm

Mass related quantities
Measured quantity	Method / procedure	Product / object	Parameter / Properties	Expanded measurement uncertainty ±	Measuring range / measuring level	Remark	Business unit
Volume	Intern metod; 5249 ver 1	Volume Flow Meter	Fluid flow/Fluid velocity	0,2 %	100 – 100 000 l/h	ansl 15 – 100 mm, max 30 °C, 10 - 5000L
Volume	Intern metod; 5249 ver 1	Volume Flow Meter	Fluid flow/Fluid velocity	0,2 %	100 – 160 000 l/h	ansl 15 – 100 mm, max 65 °C, 10 - 5000L
Volume	Intern metod; 5249 ver 1	Volume Flow Meter	Fluid flow/Fluid velocity	0,3 %	6 – 100 l/h	ansl 15 – 50mm, max 30 °C, 3 - 60L
Volume	Intern metod; 5249 ver 1	Volume Flow Meter	Fluid flow/Fluid velocity	0,3 %	6 – 100 l/h	ansl 15 – 50mm, max 65 °C, 3 - 60L
Volume	Intern metod; 5249 ver 1	Water meters	Fluid flow/Fluid velocity	0,2 %	100 – 160 000 l/h	ansl 15 – 100 mm, max 65 °C, 10 - 5000L
Volume	Intern metod; 5249 ver 1	Water meters	Fluid flow/Fluid velocity	0,2%	100 – 100 000 l/h	ansl 15 – 100 mm, max 30 °C, 10 - 5000L
Volume	Intern metod; 5249 ver 1	Water meters	Fluid flow/Fluid velocity	0,3 %	6 – 100 l/h	ansl 15 – 50mm, max 30 °C, 3 - 60L
Volume	Intern metod; 5249 ver 1	Water meters	Fluid flow/Fluid velocity	0,3 %	6 – 100 l/h	ansl 15 – 50mm, max 65 °C, 3 - 60L

Temperature
Measured quantity	Method / procedure	Product / object	Expanded measurement uncertainty ±	Measuring range / measuring level	Business unit
Temperature	Intern metod; 5244 ver 2	Heat meters	0,03 °C	delta T = 20 ± 2 °C
Temperature	Intern metod; 5244 ver 2	Heat meters	0,04 °C	delta T = 30 ± 2 °C
Temperature	Intern metod; 5244 ver 2	Heat meters	0,04 °C	delta T = 50 ± 2 °C

The calibration and measurement capability (CMC) includes measureand (technology area), method, measurement range and expanded measurement uncertainty. The expanded measurement uncertainty corresponds to a coverage probability (confidence level) of ~95%.

Regulations

STAFS 2020:1: Swedacs föreskrifter och allmänna råd om ackreditering

Inspection, SS-EN ISO/IEC 17020:2012

Latest decision date: 2026-02-13

Pressurization with gas
Type	Requirements specification	Type of control	Business unit
C	Arbetsmiljöverkets föreskrifter och allmänna råd om risker vid vissa typer av arbeten. Kap 12	Testing with positive or negative pressure

Weight and measures
Type	Requirements specification	Control object	Control area	Type of control	Measuring range / measuring level	Remark	Business unit
C	STAFS 2007:2	Heat meters	Integrator	Periodic inspection	100 ohm - 1000 ohm	-
C	STAFS 2007:2	Heat meters	Temperature sensors	Periodic inspection	delta T = 20, ± 2 °C	-
C	STAFS 2007:2	Heat meters	Temperature sensors	Periodic inspection	delta T = 30, ± 2 °C	-
C	STAFS 2007:2	Heat meters	Temperature sensors	Periodic inspection	delta T = 50, ± 2 °C	-
C	STAFS 2007:2	Volume meter	Cold water	Periodic inspection	Flöde 6-100 000 l/h	max temp 30 °C
C	STAFS 2007:2	Volume meter	Hot water	Periodic inspection	Flöde 6-160 000 l/h	max temp 65 °C

Regulations

AFS 2023:13 Kap 12: Arbetsmiljöverkets föreskrifter och allmänna råd (AFS 2023:13) om risker vid vissa typer av arbeten. Kap 12 - Provning med över- eller undertryck
STAFS 2020:1: Swedacs föreskrifter och allmänna råd om ackreditering