This European Standard specifies a method for the determination of ochratoxin A (OTA) of greater than 3 microgramme/kg. The method has been successfully validated in interlaboratory studies according to ISO 5725:1986 (1) on whole barley containing 2,9 microgramme/kg and 3,0 microgramme/kg, 7,4 microgramme/kg and 14,4 microgramme/kg of ochratoxin A, on whole maize containing 8,2 microgramme/ kg and 16,3 microgramme/kg of ochratoxin A as well as on wheat bran containing 3,8 microgramme/kg and 4,5 microgramme/kg of ochratoxin A. Note: Numerous laboratory experiences have shown that this method is also applicable to wheat flour.
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