Home / Standards / GB/T 12997-1991 GB/T 12997-1991 Abolished Water quality--Technical regulation on the design of sampling programmes 水质 采样方案设计技术规定 Standard Type GBT ICS 13.060 CCS Z12 Status 废止 Issue Date 1991-01-15 Implementation 1992-03-01 Responsible Dept 生态环境部 Drafting Unit N/A