• W.E.J. Laboratory, Hamburg, Germany, one of Europe’s leading independent commercial laboratories for chemical and biological analysis

•• Institut für Honig-Analytik Dr. C. Lüllmann, Quality Services International GmbH, Bremen, Germany, a leading testing laboratory in Europe

••• Food Research Laboratory, Tokyo Food Sanitation Association, Tokyo, Japan, a leading centre for food analysis

•••• Brunswick Laboratories, Wareham, MA, USA, the leading laboratory on the ORAC assay in the USA

••••• Q Laboratories, Inc., an internationally renowned, independent food testing laboratory, Cincinnati, Ohio, USA