A.GB/T22111-2008 B.GB/T18745-2006 C.GB/T18650-2008 D.GB/T19598-2006
A.大葉種高檔紅茶 B.高檔工夫紅茶 C.中小葉種高檔紅茶 D.高檔小種紅茶
A.3%—4% B.4%—5% C.5%—6% D.6%—7%