GB/T 20245.3-2013 focuses on the performance representation of electrolysis conductivity measurement by electrochemistry analyzers. The standard defines a series of indicators for evaluating analyzer measurement electrolysis conductivity performance, covering accuracy, repeability, response time, etc. Detailed description of instrument calibrating process, clear solution selection, temperature control and other test conditions and operating specifications for measurement. By standardizing these contents, it provides a unified and clear basis for the production, testing and use of electrochemistry analyzers. It effectively guarantees the reliability of analyzer measurement in related fields and promotes the development of industry standardization.