This document specifies references to methods for the determination of the content of the following specific micronutrients in inorganic fertilizers: — the total boron content; — the total cobalt content; — the total copper and zinc content; — the total iron content; — the total manganese content; — total molybdenum content; — the water-soluble boron content; — the water-soluble cobalt content; — the water-soluble copper content; — the water-soluble iron content; — the water-soluble manganese content; — the water-soluble molybdenum content; — the water-soluble zinc content; — the sum of declared micronutrients in compound micronutrient fertilizers.