Home / Standards / GB 6853-1986 GB 6853-1986 Abolished pH Basic line--Potassium dihydrogen phosphate pH 基准试剂 磷酸二氢钾 Standard Type GB ICS 71.040.30 CCS G61 Status 废止 Issue Date 1986-09-06 Implementation 1987-08-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A