Home / Standards / GB/T 8309-2013 GB/T 8309-2013 Active Tea—Determination of alkalinity of water-soluble ash content 茶 水溶性灰分碱度测定 Standard Type GBT ICS 67.140.10 CCS X04 Status 现行 Issue Date 2013-12-31 Implementation 2014-06-22 Responsible Dept 中华全国供销合作总社 Drafting Unit N/A