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caffeine content scopethis standard solid instant tea tea caffeine determination container-frame-type container universal mountings abrasive powder suitable
GB/T 8312-2013 in English

GB/T 8312-2013 in English

VALID

Tea - Determination of Caffeine Content

  • Issued on:2013-12-31
  • Implemented on:2014-06-22
  • File Format:PDF
  • Delivery:Via email within 1~3 business days
Price(USD): $100.00
$97.00

《GB/T 8312-2013茶 咖啡碱测定》由TC339(全国茶叶标准化技术委员会)归口,主管部门为中华全国供销合作总社。
本标准规定了用高效液相色谱法、紫外分光光度法测定茶叶中咖啡碱的仪器和用具、试剂和溶液、操作方法及结果计算的方法。
本标准适用于茶叶中咖啡碱的测定,也适用于固态速溶茶咖啡碱的测定。


Scope

This standard specifies the instruments and utensils, reagents and solutions, operation methods and results calculation methods for the determination of caffeine in tea by high performance liquid chromatography and ultraviolet spectrophotometry. This standard applies to the determination of caffeine in tea, and also applies to the determination of caffeine in solid instant tea.

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