Tea and instant tea in solid form — Determination of caffeine content — Method using high-performance liquid chromatography
固体茶和速溶茶——咖啡因含量的测定——方法采用高效液相色谱法
This International Standard specifies a method for the determination by high-performance liquid chromatography (HPLC) of the caffeine content of teas and instant teas. It is applicable to green tea, black tea and decaffeinated tea products.