DZ/T 0064.28-2021 Methods of analysis of groundwater quality - Part 28: Determination of potassium, sodium, lithium and ammonium by ion chromatography (English Version)
1970DZ/T 0064.28-2021 Methods of analysis of groundwater quality - Part 28: Determination of potassium, sodium, lithium and ammonium by ion chromatography
1993DZ/T 0064.28-1993 Groundwater quality testing methods - Determination of potassium, sodium, lithium and ammonium by ion chromatography