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: 90.20 Effective date: Apr 15, 2026

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

NOW

PUBLISHED
ISO 18447:2021
90.20 Standard under periodical review
Apr 15, 2026

National adoptions

SSH ISO 18447:2021

DPS

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

60.60 Standard published

DPS/KT 360 more

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