ISO 18447:2021

Tea — Determination of theaflavins in black tea — Method using high performance liquid chromatography

Publication date: Jun 10, 2021

General information

Current stage: 60.60 Effective date: Jun 10, 2021

Originator: ISO

Owner: ISO/TC 34/SC 8

Type: International Standard

ICS: 67.140.10

Languages: English

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Status: Published

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Scope

This document specifies a high performance liquid chromatography (HPLC) or ultra-high performance liquid chromatography (UHPLC) method for the determination of content of the four major theaflavins of tea.
It is applicable to both leaf and instant black and oolong teas. The method is currently not validated for ready-to-drink (RTD) beverages.

Life cycle

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PUBLISHED
ISO 18447:2021
60.60 Standard published
Jun 10, 2021

National adoptions

prSSH ISO 18447:2021

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Tea - Determination of theaflavins in black tea - Method using high performance liquid chromatography

40.20 DIS ballot initiated: 12 weeks

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