This standard specifies the salicylic acid spectrophotometry to determine ammonia nitrogen in water. This standard applies to determination of ammonia nitrogen in groundwater, surface water, domestic sewage, and industrial wastewater. When the sample volume is 8.0 ml and the 10 mm cuvette is used, the detection limit of this method is 0.01 mg/L, the determination lower limit is 0.04mg/L, and the determination upper limit is1.0mg/L (all counted in N). When the sample volume is 8.0 ml and the 30mm cuvette is used, the detection limit of this method is 0.004 mg/L, the determination lower limit is 0.016mg/L, and the determination upper limit is 0.25mg/L (all counted in N).
Basic Data
Standard ID
HJ 536-2009 (HJ536-2009)
Description (Translated English)
Water quality - Determination of ammonia nitrogen - Salicylic acid spectrophotometry
Sector / Industry
Environmental Protection Industry Standard
Classification of Chinese Standard
Z16
Classification of International Standard
13.060
Word Count Estimation
13,149
Date of Issue
2009-12-31
Date of Implementation
2010-04-01
Older Standard (superseded by this standard)
GB 7481-1987
Regulation (derived from)
Department of Environmental Protection Notice No. 77 of 2009
Issuing agency(ies)
Ministry of Ecology and Environment
Summary
This standard specifies the determination of ammonia acid spectrophotometry. This standard applies to groundwater, surface water, sewage and industrial effluent ammonia determination.
