ISO 10727:1995 PDF
Tea and instant tea in solid form — Determination of caffeine content — Method using high-performance liquid chromatography
Tea and instant tea in solid form — Determination of caffeine content — Method using high-performance liquid chromatography
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 6
- Дата публикации:
- 19 января 1995 г.
- Издание:
- ISO IS 10727 edition 1 version 1
- ICS:
- 67.140.10
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).
Технические детали
- Технический комитет
- ISO/TC 34/SC 8 - Tea
- SKU
- ISO 10727:1995