This draft European Standard specifies methods of quantitative determination of residues of pesticides and PCBs in fatty food. Each method described in this draft European Standard is suitable for identifying and quantifying a definite range of those non-polar organochlorine and/or organophosphorus pesticides whichoccur as residues in fats and oils as well as in the fat portion of fat- containing foodstuffs, both of either animal or vegetable origin.