The current technical specifications is developed for the purpose of implementing the Law of the People's Republic of China on Environmental Protection and the requirement of the Law of the People's Republic of China on the Prevention and Control of Water Pollution, improving the capacity of China in monitoring of water environment, achieving automation and modernization of water quality monitoring in order to meet the objective of early warning monitoring of surface water quality and monitoring and control of total pollutant discharge of pollution sources. This standard specifies major technical requirements for such aspects as the research, development, production and performance test, model selection, utilization and routine calibration of water quality automatic analyzer of ammonia nitrogen. The current technical requirements identify the performance requirement and testing method for water quality automatic analyzer of ammonia based on electrode method and spectrophotometry and used for the analysis of ammonia nitrogen in surface water, industrial effluent and municipal sewage. It is applicable to the research, development, production and performance testing of such kind instruments.

The technical requirement for water quality automatic analyzer of ammonia (HJ/T 101-2003)