ringtest  determinands seabottom

Marine Sediment Exchange Programmes

Proficiency tests

Participation is open to all laboratories.

Determinand Group Samle Type Exercise Id.
Metals (e.g. Cu and Zn) Open sea sediment MS1
Chlorinated organics (e.g. CB153 and op-DDT) and MS2
PAHs (e.g. chrysene and pyrene) Estuarine sediment MS3
Organotins (e.g. TBT and TPhT) and MS6
Brominated Flame Retardants (e.g. BDE28 and a-HBCD) Harbor sediment MS7
PFASs (e.g. PFOS and PFOA) and MS8
Microplastics River sediment DE17

Click on the Exercise Id. for more specific information about the particular exercise(s).

Microplstics verwerkt.web.jpg

General information

  • Sediment samples cover a wide range of naturally contaminated sandy and silty sediments from open sea, estuaries, rivers an harbor locations.
  • Sediments are dried and milled and sieved to < 0.5 mm.
  • Sediments are packed in glass bottles (metals: 20 gram; others: 50 gram).
  • Dried sediment samples are stable over a number of years when stored at room temperature (except organotins: -20°C).
  • You use your normal validated methods and procedures to analyze the test materials.
  • New determinands can be added to these programs on request.
  • Reports contain all data reported under strict confidentiality, including Z-score plots and method information of methods used.

How to participate

Complete the application form and return it by email.


Fees depend on your choice of programme and your preferred number of rounds per year.

Web shop

When available, leftover samples, to be used as reference materials, can be ordered in the WEPAL/QUASIMEME webshop. Participants are entitled to a discount.