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ISO 10727:1995

Tea and instant tea in solid form — Determination of caffeine content — Method using high-performance liquid chromatography

Jan 19, 1995
95.99   Withdrawal of Standard   Aug 15, 2002

General information

95.99     Aug 15, 2002

ISO

ISO/TC 34/SC 8

International Standard

67.140.10  

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Scope

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).

Life cycle

NOW

WITHDRAWN
ISO 10727:1995
95.99 Withdrawal of Standard
Aug 15, 2002

REVISED BY

PUBLISHED
ISO 10727:2002

National adoptions

SRPS ISO 10727:1996  
ISS

Tea and instant tea in solid form — Determination of caffeine content — Method using high-performance liquid chromatography

95.99   Withdrawal of Standard

E034-7,8,15,18 more