SL/T 788-2019 Determination of total nitrogen, volatile phenols, sulfides, anionic surfactants and hexavalent chromium in water quality continuous flow analysis-spectrophotometry (English Version)
2019SL/T 788-2019 Determination of total nitrogen, volatile phenols, sulfides, anionic surfactants and hexavalent chromium in water quality continuous flow analysis-spectrophotometry