E&H is therefore focused on continuously improving the quality of analysis. This is done by organizing international interlaboratory studies, e.g. within the framework of the proficiency testing program QUASIMEME and within the NORMAN project.
E&H is also a reference laboratory for the United Nations Environment Program (UNEP). In that program, large international interlaboratory studies on persistent organic pollutants (POPs) are being organized. E&H has equipment to produce reference materials for biota (e.g. canned fish), and contributes on a regular basis to the certification of reference materials for the Institute for Reference Materials and Measurements (IRMM), Joint Research Centre, Geel, Belgium. E&H also provides training for laboratories in e.g. developing countries.
UNEP: POP's interlaboratory assessments
QUASIMEME: Interlaboratory testing
Microplastics workshop and interlaboratory study