Home / Standards / GB/T 11906-1989 GB/T 11906-1989 Active Water quality--Determination of manganese--Potassium periodate spectrophotometric method 水质 锰的测定 高碘酸钾分光光度法 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