HJ/T 191-2005 紫外(UV)吸收水质自动在线监测仪技术要求
The technical requirement for water quality on-line automatic monitor of Uv
The technical requirement for water quality on-line automatic monitor of Uv
Water quality-determination of ammonia-nitrogenGas-phase molecular absorption spectrometry
Water quality-determination of Kjeldahl-nitrogenGas-phase molecular absorption spectrometry
Watcr quality-Detcrmination of total nitrogen by flow inicction analysis(FIA and N-(1-naphthyl)ethylene diamine dihydrochloridespectrophotometry
Water quality-determination of nitrite-nitrogenGas-phase molecular absorption spectrometry
Water quality-Determination of total nitrogen by continuous flowanalysis( CFA )and N-(I-naphthyl)ethylene diamine dihydrochloridespectrophotometry
Water quality-determination of nitrate-nitrogenGas-phase molecular absorption spectrometry
Water quality-Determination of ammonium nitrogen by flow injectionanalysis(FIA) and Salicylic acid spectrophotometry
Water quality-determination of total-nitrogenGas-phase molecular absorption spectrometry
Water quality-Determination of ammonium nitrogen bycontinuous flow analysis(CFA )and Salicylic acid spectrophotometry