Your partner for proficiency testing and reference materials
Soil
All soil types
Plants
Dried plant materials e.g. crops, leaves, grain
Freshwater sediment
Sediments from rivers, harbor, lake
Marine sediment
Sediments from river, harbor, estuary and open sea
Seawater
High and low salinity seawater, estuarine water and freshwater
Biota
Fish (liver), mussel and shrimp tissue
Shellfish toxins
Amnesic, lipophillic and paralytic shellfish toxins
Manure & Compost
Compost, (dry) sewage sludge, organic fertilizers
Biomass
Proximate/ elementary analysis
What is Proficiency testing?
Proficiency testing determines the performance of individual laboratories for specific tests or measurements and is used to monitor laboratories’ continuing performance. Proficiency testing is also called interlaboratory comparison. Proficiency testing compares the measuring results obtained by the participating laboratories.
About
- WEPAL-QUASIMEME is part of Wageningen University, the Netherlands (Chamber of Commerce no. 09215846) and offers globally accredited proficiency testing programmes in environmental matrices.
- Accreditation is according to ISO17043 and granted by the Dutch Accreditation Council RvA a co-signatory to the ILAC and IAF Multilateral Agreements.
- Declaration and scope of accreditation can be accessed by clicking the logo's below.
News
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WEPAL-QUASIMEME catalogue 2023
- The 2023 catalogue for the environmental chemistry proficiency tests organised by WEPAL-QUASIMEME is out. This year, the catalogue covers all... -
Nutrient samples ready for QUASIMEME Round 1
- The test materials for QUASIMEME's programmes on nutrients (AQ1 and AQ2) have been prepared, tested and are ready for the first round this year... -
Round 2 special determinands WEPAL programmes ISE and IPE
- Routine laboratory performance studies form the basis of external quality assurance for institutes that regularly make chemical measurements in the... -
ISO17043 accreditation extended for WEPAL-QUASIMEME
- The Dutch Council for Accreditation, co-signatory of the ILAC and IAF Multilateral Agreements, recently visited WEPAL-QUASIMEME to verify our... -
New features on the website
- The WEPAL-QUASIMEME website and participant site have been improved. -
QUASIMEME catalogue 2022 is out
- The latest catalogue for the proficiency tests organized by QUASIMEME in 2022 is out. This catalogue covers various programmes of contaminants in...