Home / Standards / GB/T 7489-1987 GB/T 7489-1987 Active Water quality--Determination of dissolved oxygen--Iodometric method 水质 溶解氧的测定 碘量法 Standard Type GBT ICS 13.060 CCS Z16 Status 现行 Issue Date 1987-03-06 Implementation 1987-08-01 Responsible Dept 生态环境部 Drafting Unit N/A