ISO 14502-2:2005 (R2025)
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ISO 14502-2:2005 (R2025)

Determination of substances characteristic of green and black tea
Part 2: Content of catechins in green tea — Method using high-performance liquid chromatography
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Most recent standard

Summary

ISO 14502-2:2005 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. Gallic acid and caffeine can also be determined by this method, as can theogallin and theaflavins.

Notes

90.93 : Norme internationale confirmée

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 03/16/2005
Confirmation Date 09/26/2025
Edition 1
Page Count 23
EAN ---
ISBN ---
Weight (in grams) ---
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