BS ISO 14502-2:2005
Determination of substances characteristic of green and black tea - Content of catechins in green tea - Method using high-performance liquid chromatography

Standard No.

BS ISO 14502-2:2005

Release Date

2005

Published By

British Standards Institution (BSI)

Status

Be replaced

Replace By

BS ISO 14502-2:2005(2006)

Latest

BS ISO 14502-2:2005(2006)

Replace

03/312777 DC:2003

Scope

This part of ISO 14502 specifies a high-performance liquid chromatographic (HPLC) method for the determination of the total catechin content of tea from the summation of the individual catechins. It is applicable to both leaf and instant green tea, and with precision limitations to black tea (see Annex A). Gallic acid and caffeine can also be determined by this method, as can theogallin and theaflavins.

BS ISO 14502-2:2005 history

• 0000 BS ISO 14502-2:2005(2006)
• 2005 BS ISO 14502-2:2005 Determination of substances characteristic of green and black tea - Content of catechins in green tea - Method using high-performance liquid chromatography