BH GSO ISO 14502-2:2024
ISO 14502-2:2005
Bahraini Standard
Current Edition
·
Approved on
21 November 2024
Determination of substances characteristic of green and black tea- part2: content of catechins in green tea - Method using High-performance liquid chromatography
BH GSO ISO 14502-2:2024 Files
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BH GSO ISO 14502-2:2024 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.
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