AQS Baden-Württemberg (Universität Stuttgart, ISWA)
Accreditation self-declared (DAkkS)
Analytical quality assurance unit at the University of Stuttgart's institute for sanitary engineering and water quality that runs proficiency tests mainly in water analysis, covering drinking water, wastewater and wastewater treatment plants.
Testing fields
- Water
- Environment, soil & air
iswa.uni-stuttgart.de
Schemes (5)
Ringversuche Trinkwasser – A 1 Anionen
A 1
- Water
- Sample type
- Drinking water
- Analytes
- Bromate, chloride, fluoride, nitrate, nitrite, sulphate, phosphorus
Ringversuche Trinkwasser – O 2 LHKW/Benzol
O 2
- Water
- Sample type
- Drinking water
- Analytes
- Volatile chlorinated hydrocarbons, benzene, vinyl chloride
Ringversuche Trinkwasser (A 1–A 5 anorganische, O 1–O 5 organische Parameter)
- Water
- Sample type
- Drinking water
- Analytes
- Anions, trace elements, cations, general parameters, pesticides, VOCs, PAHs, acidic and polar pesticides
Ringversuche Abwasser
- Water
- Environment, soil & air
- Sample type
- Wastewater
- Analytes
- Sampling and general parameters, photometry/IC/titrimetry, elements, sum parameters, GC, HPLC, microbiological and biological methods, biotests
Ringversuche für Kläranlagen
- Water
- Environment, soil & air
- Sample type
- Wastewater treatment plant samples
| Scheme | Testing fields | Sample type | Analytes | Rounds/yr | Link |
|---|---|---|---|---|---|
| Ringversuche Trinkwasser – A 1 AnionenA 1 |
| Drinking water | Bromate, chloride, fluoride, nitrate, nitrite, sulphate, phosphorus | — | Scheme page for Ringversuche Trinkwasser – A 1 Anionen (opens in a new tab) |
| Ringversuche Trinkwasser – O 2 LHKW/BenzolO 2 |
| Drinking water | Volatile chlorinated hydrocarbons, benzene, vinyl chloride | — | Scheme page for Ringversuche Trinkwasser – O 2 LHKW/Benzol (opens in a new tab) |
| Ringversuche Trinkwasser (A 1–A 5 anorganische, O 1–O 5 organische Parameter) |
| Drinking water | Anions, trace elements, cations, general parameters, pesticides, VOCs, PAHs, acidic and polar pesticides | — | Scheme page for Ringversuche Trinkwasser (A 1–A 5 anorganische, O 1–O 5 organische Parameter) (opens in a new tab) |
| Ringversuche Abwasser |
| Wastewater | Sampling and general parameters, photometry/IC/titrimetry, elements, sum parameters, GC, HPLC, microbiological and biological methods, biotests | — | Scheme page for Ringversuche Abwasser (opens in a new tab) |
| Ringversuche für Kläranlagen |
| Wastewater treatment plant samples | — | — | Scheme page for Ringversuche für Kläranlagen (opens in a new tab) |
Accreditation
- Status
- Accreditation self-declared
- Accreditation body
- DAkkS
- Certificate number
- D-EP-11027-01
Self-declared: stated by the provider and not yet verified by EqasOnline.
About this listing
Compiled from AQS Baden-Württemberg (Universität Stuttgart, ISWA)'s own published information or sent in by the provider, and reviewed by EqasOnline. Check scheme details, fees and dates with the provider before you enrol. 5 schemes listed here.
Last updated 29 Oct 2026.
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