HJ 533-2009
Ambient air exhaust gas.Determination of ammonia.Nessler's reagent spetcrophotometry (English Version)
- Standard No.
- HJ 533-2009
- Language
- Chinese, Available in English version
- Release Date
- 2009
- Published By
- Professional Standard - Environmental Protection
- Latest
- HJ 533-2009
- Replace
- GB/T 14668-1993
- Scope
- This standard specifies the Nessler reagent spectrophotometric method for the determination of ammonia in ambient air and industrial waste gases. This standard is applicable to the determination of ammonia in ambient air, as well as the determination of ammonia in waste gases from pharmaceutical, chemical, coking and other industrial industries. The detection limit of this standard method is 0.5μg/10ml absorption solution. When the volume of the absorption liquid is 50ml and the gas is collected from 10L, the detection limit of ammonia is 0.25mg/m, the lower limit of determination is 1.0mg/m, and the upper limit of determination is 20mg/m. When the volume of the absorption liquid is 10 ml and the gas sampling is 45 L, the detection limit of ammonia is 0.01 mg/m, the lower limit of determination is 0.04 mg/m, and the upper limit of determination is 0.88 mg/m.
HJ 533-2009 history
- 2009 HJ 533-2009 Ambient air exhaust gas.Determination of ammonia.Nessler's reagent spetcrophotometry
HJ 533-2009 Ambient air exhaust gas.Determination of ammonia.Nessler's reagent spetcrophotometry has been changed from GB/T 14668-1993 Air quality--Determination of ammonia--Nessler s reagent colorimetric method .
