Tea — Determination of theaflavins in black tea — Method using high performance liquid chromatography
Primary tabs
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.
LATEST NEWS
Water is essential to life. It is also vital to achieving more inclusive and sustainable development. That's why...
From 25 to 26 August 2022, ASN held a mission to popularize ISO standards in the field of on-site sanitation in Togo...
We are pleased to announce that the Director General of the Senegalese Association for...
The Senegalese Association for Standardization (ASN) celebrated on November 11, 2022 the World...
