This standard was last reviewed and confirmed in 2020. Therefore this version remains current.
ISO 14502-1:2005 specifies a method for the determination of the total polyphenol content of leaf teas and instant teas by a colorimetric assay using Folin-Ciocalteu phenol reagent. It is applicable to both green and black tea products.
Status: PublishedPublication date: 2005-03
Edition: 1Number of pages: 10
Technical Committee: ISO/TC 34/SC 8 Tea
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