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Germany

Stadtwerke Gütersloh GmbH Labor für Trinkwasser und Umweltschutz

Berliner Straße 260, 33330, Gütersloh, Germany

DAKKS D-PL-17313-01-00DAKKS D-PL-17313-01-01ISO/IEC 17025Register refreshed 2026-11-06

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Accredited standards
37
DAKKS certificates
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1
DAKKS accredited scope

What this lab is accredited for

Our reading of the DAKKS scope: each standard once, with its official name where we have checked it.

Only this lab. Searches the 37 standard numbers and the 32 official names we hold. When no standard matches, it searches the method text of every scope line.

ISO30
ISO 1Geometrical product specifications (GPS) - Standard reference temperature for the specification of geometrical and dimensional properties
ISO 5667-5Water quality - Sampling - Part 5: Guidance on sampling of drinking water from treatment works and piped distribution systems
ISO 5814Water quality - Determination of dissolved oxygen - Electrochemical probe method
ISO 5815-1Water quality - Determination of biochemical oxygen demand after n days (BODn) - Part 1: Dilution and seeding method with allylthiourea addition
ISO 6222Water quality - Enumeration of culturable micro-organisms - Colony count by inoculation in a nutrient agar culture medium
ISO 6878Water quality - Determination of phosphorus - Ammonium molybdate spectrometric method
ISO 7027-1Water quality - Determination of turbidity - Part 1: Quantitative methods
ISO 7027-2Water quality - Determination of turbidity - Part 2: Semi-quantitative methods for the assessment of transparency of waters
ISO 7393-2Water quality - Determination of free chlorine and total chlorine - Part 2: Colorimetric method using N,N-dialkyl-1,4-phenylenediamine, for routine control purposes
ISO 7887Water quality - Examination and determination of colour
ISO 7899-2Water quality - Detection and enumeration of intestinal enterococci - Part 2: Membrane filtration method
ISO 8467Water quality - Determination of permanganate index
Show all 30
ISO 9308-1Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 1: Membrane filtration method for waters with low bacterial background flora
ISO 9308-2Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 2: Most probable number method
ISO 9377-2Water quality - Determination of hydrocarbon oil index - Part 2: Method using solvent extraction and gas chromatography
ISO 9562Water quality - Determination of adsorbable organically bound halogens (AOX)
ISO 10304-1Water quality - Determination of dissolved anions by liquid chromatography of ions - Part 1: Determination of bromide, chloride, fluoride, nitrate, nitrite, phosphate and sulfate
ISO 10304-4Water quality - Determination of dissolved anions by liquid chromatography of ions - Part 4: Determination of chlorate, chloride and chlorite in water with low contamination
ISO 10523Water quality - Determination of pH
ISO 11731Water quality - Enumeration of Legionella

Certificate says EN ISO 11731 2019-03 UBA Empfehlung 18. Probably the same standard; not checked against the EN document.

ISO 11732Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection
ISO 11885Water quality - Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES)
ISO 13395Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
ISO 14189Water quality - Enumeration of Clostridium perfringens - Method using membrane filtration
ISO 14403-2Water quality - Determination of total cyanide and free cyanide using flow analysis (FIA and CFA) - Part 2: Method using continuous flow analysis (CFA)
ISO 15587-2Water quality - Digestion for the determination of selected elements in water - Part 2: Nitric acid digestion
ISO 15681-2Water quality - Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) - Part 2: Method by continuous flow analysis (CFA)
ISO 16266Water quality - Detection and enumeration of Pseudomonas aeruginosa - Method by membrane filtration
ISO 17294-2Water quality - Application of inductively coupled plasma mass spectrometry (ICP-MS) - Part 2: Determination of selected elements including uranium isotopes
ISO 19458Water quality - Sampling for microbiological analysis
DIN3
DIN 38404-10
DIN 38407-43
DIN 38409-7
Other standards4
19643-1
38407
EN 1622Water quality - Determination of the threshold odour number (TON) and threshold flavour number (TFN)
EN 27888Water quality - Determination of electrical conductivity

Read from the scope as published by DAKKS. Register refreshed 2026-11-06.

Scope as published by DAKKS

14 lines
DAKKS

ISO/IEC 17025

Active

D-PL-17313-01-00

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DAKKS

ISO/IEC 17025

Active

D-PL-17313-01-01

View scope

Location

Berliner Straße 260, Gütersloh, 33330, DE

51.91973, 8.39872

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