RefeSol - Quality control

1. The below-mentioned analytical data were determined in an interlaboratory comparison test comprising five laboratories.
   
   
2. The chemical parameters of the soil are analysed annually to identify changes in time.
   
   

3. The methodical approach makes sure that the given range will be maintained.

4. The analyses occur according to the requirements of GLP (Good Laboratory Practice) and DACH (Deutsche Akkreditierungsstelle Chemie GmbH).