This standard specifies the classification principles and methods of water supply quality indicators, coding principles and methods, indicator classification and codes. This standard applies to the construction of water supply management information systems, including the construction of water supply water quality management information systems and water supply water quality laboratory information management systems. It also applies to the exchange and use of water quality information between systems.
CJ/T 474-2015 history
2015CJ/T 474-2015 Information system for urban water supply management.Classifying and coding for water supply quality index