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21/30426878 DC
M00000100
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14 January 2021 BS ISO 23697-2. Water quality. Determination of total nitrogen (TNb) in water using small-scale sealed tubes. Part 2. Chromotropic acid based method
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Ground water, Working range, Laboratory testing, Water testing, Chemical analysis and testing, Ions, Chlorites, Determination of content, Interferences (chemical), Chlorides, Calibration, Chlorates, Water, Anions, Liquid chromatography, Dissolution, Swimming pools, Chromatography, Quantitative analysis, Specimen preparation, Statistical data, Potable water, Test equipment, Quality