K0-INAA method accuracy using Zn as comparator

An evaluation of the accuracy in the application of the k0-INAA method using Zn foil as comparator is presented. A good agreement was found in the precision within analysts and between them, as well as in the assessment of trueness for most elements. The determination of important experimental parameters like gamma peak counting efficiency, γ–γ true coincidence, comparator preparation and quality assurance/quality control is also described and discussed.