ISO 14502-1:2005
Determination of substances characteristic of green and black tea - Part 1: Content of total polyphenols in tea - Colorimetric method using Folin-Ciocalteu reagent

Standard No.

ISO 14502-1:2005

Release Date

2005

Published By

International Organization for Standardization (ISO)

Status

Be replaced

Replace By

ISO 14502-1:2005/cor 1:2006

Latest

ISO 14502-1:2005/cor 1:2006

Scope

This part of ISO 14502 specifies a method for the determination of the total polyphenol content of leaf tea and instant tea by a colorimetric assay using Folin-Ciocalteu phenol reagent [4]. It is applicable to both green and black tea products.

ISO 14502-1:2005 history

• 2006 ISO 14502-1:2005/cor 1:2006 Determination of substances characteristic of green and black tea - Part 1: Content of total polyphenols in tea - Colorimetric method using Folin-Ciocalteu reagent; Technical Corrigendum 1
• 2005 ISO 14502-1:2005 Determination of substances characteristic of green and black tea - Part 1: Content of total polyphenols in tea - Colorimetric method using Folin-Ciocalteu reagent