Home / Standards / GB/T 13580.7-1992 GB/T 13580.7-1992 Active Determination of nitrite in the wet precipitation--N-(1-naphthyl)-1， 2-diaminoethane dihydrochloride spectrophotometry 大气降水中亚硝酸盐测定 N-(1-萘基)-乙二胺光度法 Standard Type GBT ICS 13.060.10 CCS Z10 Status 现行 Issue Date 1992-07-01 Implementation 1993-03-01 Responsible Dept 生态环境部 Drafting Unit N/A