ISO 20634:2015

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ISO 20634:2015 is an international standard that specifies a method for quantitatively determining vitamin B12 in infant and adult formula (powders, ready-to-feed liquids, and liquid concentrates) using reversed phase high performance liquid chromatography (RP-HPLC). The standard was published in 2015 and last reviewed and confirmed in 2021, according to ISO - International Organization for Standardization.