Home / Standards / GB/T 11905-1989 GB/T 11905-1989 Active Water quality--Determination ofcalcium and magnesium--Atomic absorption spectrophotometric method 水质 钙和镁的测定 原子吸收分光光度法 Standard Type GBT ICS N/A CCS Z16 Status 现行 Issue Date 1989-11-03 Implementation 1990-07-01 Responsible Dept 生态环境部 Drafting Unit N/A