Publikuar
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.
PUBLISHED
ISO 14502-1:2005
90.93
Standard confirmed
29 qer 2020
Corrected by
ISO 14502-1:2005/Cor 1:2006
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