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Interlaboratory studies
Building the capacity of laboratories in Europe and globally by systematic organisation and initiation of international Collaborative Trials is part of the regular activities of the NORMAN network. More than 20 Collaborative Trials have been organised by NORMAN since 2006 on a wide range of methods, including non-target screening in water, sediment, indoor dust and biota, in vitro and in vivo bioassays and passive sampling. Based on the needs identified by the NORMAN community, these studies represent a crucial step for the scientific community and for environmental agencies for validation and harmonisation of innovative sampling and monitoring tools before their possible future implementation in regulations.
List of activities
| Topic | Event | Programme | Deadline | Reports |
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Topic: Interlaboratory Study on Per- and polyfluoroalkyl substances (PFAS) by target analysis and Total Oxidizable Precursors (TOP) assay
Organised by: |
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Registration deadline: 8 September 2026 Shipment: 21-28\5 September 2026 Data submission deadline: 31 October 2027 (excluding) |
Preliminary report: January 2027
Final report: April 2027 |
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Topic: Interlaboratory Study on TRIAZINES and PESTICIDES in SEAWATER – AQ8
Organised by: |
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(via WEPAL-QUASIMEME participant portal: select “Seawater / AQ8” to register) |
Registration deadline: 15 January 2027 Shipment: end March 2027 Data entry deadline: 30 June 2027 |
Final report: 31 July 2027 |
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Topic: Interlaboratory Study on CECs in marine SEDIMENT and MUSSEL -DE21 Organised by: WEPAL-QUASIMEME (WUR) and ILVO
In cooperation with CONTRAST project |
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(via WEPAL-QUASIMEME participant portal: select “Special Exercises / DE21” to register) |
Registration deadline: 30 September 2026 Shipment: end September/early October 2026 Data entry deadline: 1 March 2027 (excluding) |
Final report: 1 May 2027 |
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Topic: Interlaboratory Study/Developing Exercise on MICROPLASTICS in WATER and SEDIMENT - DE17
Organised by: |
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(NORMAN members will have a discount on the registration fee, depending on number of NORMAN members participating) |
Registration deadline: 15 September 2026 Shipment: 26-28 October 2026 Data entry deadline: 1 March 2027 (excluding) |
Final report: 1 June 2027
Webinar (if needed): end of June 2027 |
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Topic: Interlaboratory trial PT 8/26 - TW S10 - Epichlorohydrin / acrylamide in drinking water
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https://www.iswa.uni-stuttgart.de/institute/central-services/lflaqs/aqs/pt/ |
Announcement: 1 June 2026 Registration deadline: 26 June 2026 Shipment: 25 August 2026 Entry deadline: 14 September 2026 |
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Topic: Interlaboratory trial PT 4/26 - TW S2 - pharmaceuticals and estrogens in drinking water
Organised by: |
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https://www.iswa.uni-stuttgart.de/institute/central-services/lflaqs/aqs/pt/ |
Registration closed Shipment: 28 April 2026 Entry deadline: 1 June 2026 |
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Topic: Interlaboratory trial PT 5/25 TW S7- trifluoroacetic acid Organised by: |
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Registration deadline: 21 March 2025
Shipment: 20 May 2025
Entry deadline 6 September 2025
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Report |
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Topic: Interlaboratory trial PT 8/25 - TW S1 - sweeteners and benzotriazoles
Organised by: |
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Announcement: 23 June 2025
Registration deadline: 11 July 2025 Shipment: 2 September 2025
Entry deadline: 22 September 2025
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Report | |
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Topic: Norman Interlaboratory Comparison Study Microplastics on instrument and software identification in collaboration with PlasticTrace
Organised by: |
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June: Announcement
July: Registration closes
1st of August: Sandwich filters are distributed to participating labs
8th of October: Deadline reporting
4th of November: Deadline for data analysis
End of Nov/beginning of Dec: On-line workshop
3rd-4th December: Presentation Norman General Assembly
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Topic: NORMAN Collaborative Trial 2024-2025 - Non-target screening of airborne organic substances in PDMS-foam passive samplers
Organized by:
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Announcement: 6 June 2024
Deadline for registration: 15 July 2024
Shipment: October 2024
Deadline for submission of results: February 2025
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Topic: WEPAL-QUASIMEME Interlaboratory Study on the Analysis of Microplastics in Environmental Matrices Organised by: Amsterdam Institute for Life and Environment (A-LIFE) at Vrije Universiteit, O|2 Lab building, Van der Boechorstraat 3, 1081 BT Amsterdam, Netherlands; WEPAL-QUASIMEME Laboratory Performance Studies at Wageningen University & Research, PO Box 8005, 6700 EC Wageningen, Netherlands; and NIVA - Norwegian Research Institute for Water Research, Økernveien 94, 0579 Oslo, Norway |
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Deadline for registration: 1 June 2024 |
Final report: 1 February 2025; Webinar to discuss results: mid February 2025 |
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Topic: Interlaboratory trial PT 5/24 - TW S11 - halocetic acids Organised by: AQS Baden-Württemberg at Institute for Sanitary Engineering, Water Quality and Solid Waste Management, University of Stuttgart, Bandtäle 2, 70569 Stuttgart-Büsnau, Germany and IWW Water Center, Moritzstr. 26, 45476 Mülheim an der Ruhr, Germany |
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Announcement: 11 March 2024 Deadline for registration: 5 April 2024 Shipment: 4 June 2024 Entry deadline: 24 June 2024 |
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Topic: Interlaboratory trial PT 8/24 - TW S5 - sulfonyl urea herbicides Organised by: AQS Baden-Württemberg at Institute for Sanitary Engineering, Water Quality and Solid Waste Management, University of Stuttgart, Bandtäle 2, 70569 Stuttgart-Büsnau, Germany and IWW Water Center, Moritzstr. 26, 45476 Mülheim an der Ruhr, Germany |
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Announcement: 24 June 2024 Deadline for registration: 12 July 2024 Shipment: 10 September 2024 Entry deadline: 30 September 2024 |
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NORMAN Collaborative Trial 2023-2024 - Intercomparison of Ion mobility separation data - Development of open-access CCS databases for IMS Organised by: Swedish University of Agricultural Sciences (Sweden), National and Kapodistrian University of Athens (Greece), Environmental Institute (Slovak Republic), University Jaume I (Spain) and University of Natural Resources and Life Sciences of Vienna (Austria) |
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Deadline for registration: 15 June 2023 |
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Proficiency Test PT 7/22 TW S4 – PFAS according to EU drinking water directive
Organised by: |
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PFAS analytical exchange - TOP Assay Method Comparison
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Deadline for questionnaire: 19 October 2022 |
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Proficiency Test 2/22 - TW S7 – Trifluoroacetic acid in drinking water Organised by: AQS Baden-Württemberg at Institute for Sanitary Engineering, Water Quality and Solid Waste Management, University of Stuttgart, Bandtäle 2, 70569 Stuttgart-Büsnau, Germany |
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Deadline for registration: 23 December 2021 Deadline for the dispatch: 22 February 2022 Deadline for reporting: 14 March 2022 |
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PFAS suspect HRMS lists and lists of PFAS-containing products activity organised as a part of the NORMAN JPA 2022 by QAEHS – the Queensland Alliance for Environmental Health Science, The University of Queensland, Australia; IRSA-CNR - Water Research Institute of the National Research Council of Italy and University of Amsterdam, The Netherland |
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