International Standard
ISO 14502-2:2005
Determination of substances characteristic of green and black tea — Part 2: Content of catechins in green tea — Method using high-performance liquid chromatography
Reference number
ISO 14502-2:2005
Edition 1
2005-03
International Standard
Read sample
ISO 14502-2:2005
31357
Published (Edition 1, 2005)
This standard was last reviewed and confirmed in 2020. Therefore this version remains current.

ISO 14502-2:2005

ISO 14502-2:2005
31357
Language
Format
CHF 129
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Abstract

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

  •  : Published
     : 2005-03
    : International Standard confirmed [90.93]
  •  : 1
     : 23
  • ISO/TC 34/SC 8
    67.140.10 
  • RSS updates

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