This part of ISO 12080|IDF 142 specifies a method using high-performance liquid chromatography (HPLC) for the determination of vitamin A in dried skimmed milk containing at least 10 IU (International Units) of vitamin A per gram.
IDF 142-2-2009 history
2009IDF 142-2-2009 Dried skimmed milk - Determination of vitamin A content - Part 2: Method using high-performance liquid chromatography