Home / Standards / GB/T 11902-1989 GB/T 11902-1989 Active Water quality--Determination of selenium--Diaminonaphthalene fluorometric method 水质 硒的测定 2,3-二氨基萘荧光法 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