ISO 10727:1995
Tea and instant tea in solid form — Determination of caffeine content — Method using high-performance liquid chromatography
Reference number
ISO 10727:1995
Edición 1
1995-01
Retirada
ISO 10727:1995
18820
Retirada (Edición 1, 1995)

Resumen

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).

Informaciones generales

  •  : Retirada
     : 1995-01
    : Retirada de la Norma Internacional [95.99]
  •  : 1
     : 6
  • ISO/TC 34/SC 8
    67.140.10 
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