This standard is applicable to the determination of nitrate nitrogen in surface water, groundwater, seawater, drinking water, domestic sewage and industrial sewage. The detection limit of the method is 0.006 mg/L, the lower limit of determination is 0.03 mg/L, and the upper limit of determination is 10 mg/L.
HJ/T 198-2005 history
2005HJ/T 198-2005 Water quality - Determination of nitrate-nitrogen Gas-phase molecular absorption spectrometry