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. This document is applicable to EU fertilizing products classified as PFC 1(C) and PFC 7 as long as the blend only consists of EU fertilizing products classified as PFC 1(C), PFC 2 and PFC 5 as specified in the Regulation (EU) 2019/1009 [2]. An overview of the references to methods for the determination of the specific micronutrients is given in Table 1.