This standard was last reviewed and confirmed in 2020. Therefore this version remains current.
Abstract Preview
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.
General information
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Status : PublishedPublication date : 2005-03
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Edition : 1Number of pages : 23
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- ICS :
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Tea
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| Paper |
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Life cycle
A standard is reviewed every 5 years
Revisions / Corrigenda
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Now confirmed
ISO 14502-2:2005 -
Corrigenda/Amendments
ISO 14502-2:2005/Cor 1:2006
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