This standard applies to the determination of water extracts in tea. This standard is equivalent to the international standard ISO1574-1980 "Determination of Tea-Water Extract". Water extract refers to the extraction of soluble substances in tea leaves with boiling water under specified conditions.
GB/T 8305-1987 history
2013GB/T 8305-2013 Tea.Determination of water extracts content
2002GB/T 8305-2002 Tea--Determination of water extracts content