ISO 20635:2018

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ISO 20635:2018 is an international standard that specifies a method for determining vitamin C (L-ascorbic acid) in infant and adult formulas. The method uses (ultra) high performance liquid chromatography with ultraviolet detection ((U)HPLC-UV). This standard applies to all forms of infant and adult formulas, including powders, ready-to-feed liquids, and liquid concentrates.