Welcome to the proficiency testing schemes homepage of WESSLING Nonprofit Ltd. Please choose one of our programs.
QualcoDuna PTS
Environmental analysis and sampling proficiency tests in various matrices with over 50 years of experience. Open to any interested laboratory.
QualcoDanube PTS
An invitation-only scheme for members of the TransNational Monitoring Network in the Danube basin.
Qualco-MAE PTS
Organised in conjuction with the Hungarian Society for Material Testing, this scheme focuses on proficiency tests of various materials. Open to any interested laboratory.
