Povučen
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).
POVUČEN
ISO 10727:1995
95.99
Povučen
15. 8. 2002.
OBJAVLJEN
ISO 10727:2002
Čaj i instant čaj u čvrstom obliku - Određivanje sadržaja kofeina - Metoda tečne hromatografije visoke performanse - (Identičan sa ISO 10727:1995)
95.99 Povučen