ISO 10727:1995

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

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).

OEN:

ISO

Langue:

English

Code(s) de l'ICS:

67.140.10

Statut:

Annulée

Date de Publication:

1995-01-18

Numéro Standard:

ISO 10727:1995