GB/T 8312-1987
Determination of tea and caffeine (English Version)

Standard No.

GB/T 8312-1987

Language

Chinese, Available in English version

Release Date

1987

Published By

Professional Standard - Agriculture

Status

Be replaced 2002-12

Replace By

GB/T 8312-2002

Latest

GB/T 8312-2013

Scope

This standard applies to the determination of caffeine in tea. After removing leaf protein, tea polyphenols and other substances from the tea water extract, the remaining alkaloids whose measurement wavelength is 274nm are called tea caffeine.

GB/T 8312-1987 history

• 2013 GB/T 8312-2013 Tea.Determination of caffeine content
• 2002 GB/T 8312-2002 Tea--Determination of caffeine content
• 1987 GB/T 8312-1987 Determination of tea and caffeine