ISO 18447:2021

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

NORMA vydána dne 10.6.2021

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Elektronické PDF (4300.50 CZK)

The information about the standard:

Designation standards: ISO 18447:2021
Publication date standards: 10.6.2021
The number of pages: 19
Approximate weight : 57 g (0.13 lbs)
Country: International technical standard
Kategorie: Technické normy ISO

Annotation of standard text ISO 18447:2021 :

Description / Abstract: 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.