When the sampling volume is 4-24L, this standard is applicable to the determination of the concentration range of nitrogen oxides in the air in the range of 0.015-2.0mg/m3.
GB/T 15436-1995 history
1995GB/T 15436-1995 Ambient air--Determination of nitrogen oxides--Saltzman method
GB/T 15436-1995 Ambient air--Determination of nitrogen oxides--Saltzman method was changed to HJ 479-2009 Ambient air.Determination of nitrogen oxides.N-(1-Naphthyl)ethylene diamine dihydrochloride spectrophotometric method.