[en] The National Institute of Standards and Technology Gaitherburg USA has done in co-operation with INCT Warsaw the EPR dose measurements for two INCT ⁶⁰Co irradiators using l-alanine standard pellets as dosimeter medium. In the study the comparative EPR measurements of doses up to 40 kGy have been done using l-alanine powder with ⁶⁰Co source (reference to NIST standard) and EB linear accelerator, respectively. On the basis of this comparative study 5% correction factor for EB dose measurements has been adapted in the INCT Experimental Plant for Food Irradiation traceable to the dose estimations done with the Risoe calorimetric system