HJ/T 197-2005
Water quality - Determination of nitrite-nitrogen Gas-phase molecular absorption spectrometry (English Version)

Standard No.

HJ/T 197-2005

Language

Chinese, Available in English version

Release Date

2005

Published By

Professional Standard - Environmental Protection

Latest

HJ/T 197-2005

Scope

This standard is applicable to the determination of nitrite nitrogen in surface water, groundwater, seawater, drinking water, domestic sewage and industrial sewage. Using a wavelength of 213.9nm, the lowest detection limit of the method is 0.003mg/L, the lower limit of determination is 0.012mg/L, and the upper limit of determination is 10mg/L; at a wavelength of 279.5nm, the upper limit of determination can reach 500mg/L.

HJ/T 197-2005 history

• 2005 HJ/T 197-2005 Water quality - Determination of nitrite-nitrogen Gas-phase molecular absorption spectrometry