ISO-18447 › Tea - Determination of theaflavins in black tea - Method using high performance liquid chromatography

ISO-18447 - 1ST EDITION - CURRENT


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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.

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67.140.10 (Tea Including herb teas)

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Document Number

ISO 18447:2021

Revision Level

1ST EDITION

Status

Current

Publication Date

June 1, 2021

Committee Number

ISO/TC 34/SC 8