GB/T 14679-1993
Air quality. Determination of Ammonia. Sodium salicylate-sodium hypochlorite spectrophotometric method (English Version)
- Standard No.
- GB/T 14679-1993
- Language
- Chinese, Available in English version
- Release Date
- 1993
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2010-04
- Latest
- GB/T 14679-1993
- Replace By
- HJ 534-2009
- Scope
- This standard specifies the sodium hypochlorite-salicylic acid spectrophotometric method for the determination of ammonia. This standard applies to the determination of ammonia in the factory boundary of odor sources and ambient air. Measuring range: When the absorption liquid is 10mL and the sampling volume is 10-20L, the measuring range is 0.008-110mg/m3. For high-concentration samples, it must be diluted before testing. Minimum detection limit: The detection limit of this method is 0.1μg/10mL, calculated by (22LfSwb); when the total volume of sample absorption liquid is 10mL and the sampling volume is 10L, the minimum detection limit The concentration is 0.008mg/m3. Interference: Not applicable when the concentration of organic amine is greater than 1mg/m3.
GB/T 14679-1993 history
- 1993 GB/T 14679-1993 Air quality. Determination of Ammonia. Sodium salicylate-sodium hypochlorite spectrophotometric method
GB/T 14679-1993 Air quality. Determination of Ammonia. Sodium salicylate-sodium hypochlorite spectrophotometric method was changed to HJ 534-2009 Ambient air.Determination of ammonia.Sodium hypochlorite.salicylic acid spectrophotometry.
