TCVN 6660-2000 Water quality.Determination of dissolved Li+, Na+, NH4+, K+, Mn++, Ca++, Mg++, Sr++ and Ba++ using ion chromatography.Method for water and waste water
2008TCVN 6660-2000 Water quality.Determination of dissolved Li+, Na+, NH4+, K+, Mn++, Ca++, Mg++, Sr++ and Ba++ using ion chromatography.Method for water and waste water