This standard has been revised by ISO 10727:2002
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).
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Status: WithdrawnPublication date: 1995-01
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Edition: 1Number of pages: 6
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- ICS :
- 67.140.10 Tea
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