GB/T 9833.4 specifies the requirements,test methods,inspection rules,marking and labeling,package,transportation,and storage for Kangzhuan tea. It is applicable to Kangzhuan tea processed from the primary sun dried loose tea that produced in Ya ’an city,Sichuan Province and its neighboring area,with acceptable fine processes as sifting,semi-finished tea blending,steaming and compression brick shaping,drying and final product packing.