DL/T 1207-2013 "On-line Measuring method of conductivity of pure water in power plants" standard specifies the instrumentation, inspection and Measuring method for continuous on-line conductivity measurement in flowing pure water in power plants. The standard details the control requirements for sampling systems, water sample Flow rate and temperature to ensure the accuracy and Reliability of the measurement process. It is suitable for on-line measurement of pure water in continuous flow sampling pipes and process pipes with conductivity below 10uS/cm. The standard refers to a number of relevant documents, including boiler water and chilled down water analysis methods, analytical instrument terminology, thermal power plant water vapor analysis methods on the determination of hydrogen conductivity, etc., to support the correct use of online chemical instruments and standardized operation.