Home / Standards / GB/T 11901-1989 GB/T 11901-1989 Active Water quality--Determination of suspended substance--Gravimetric method 水质 悬浮物的测定 重量法 Standard Type GBT ICS N/A CCS Z16 Status Active Issue Date 1989-11-03 Implementation 1990-07-01 Centralized Committee 生态环境部 Issuing Authority 国家技术监督局