Abstract

The method specified is based on extracting the caffeine from a test portion with water at 90 °C in the presence of magnesium oxide, filtration followed by determination of the caffeine content by HPLC with UV detection. Applies to teas and instant teas with a caffeine content of greater than 0,3 % (m/m).


General information 

  • Status
     : Withdrawn
    Publication date
     : 1995-01
  • Edition
     : 1
    Number of pages
     : 6
  • Technical Committee
     : ISO/TC 34/SC 8 Tea
  • ICS
     :
    67.140.10 Tea

Life cycle

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  8. ISO 10727:1995