ISO 14502-1:2005Published

Determination of substances characteristic of green and black tea — Part 1: Content of total polyphenols in tea — Colorimetric method using Folin-Ciocalteu reagent

Détermination des substances caractéristiques du thé vert et du thé noir — Partie 1: Dosage des polyphénols totaux dans le thé — Méthode colorimétrique utilisant le réactif de Folin-Ciocalteu

Abstract / scope

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.

Life cycle

Amendments & corrigenda

ISO 14502-1:2005/Cor 1:2006PublishedDetermination of substances characteristic of green and black tea — Part 1: Content of total polyphenols in tea — Colorimetric method using Folin-Ciocalteu reagent — Technical Corrigendum 1International Standard · Published 24 Mar 2006 · ISO/TC 34/SC 8