GB 10737-1989 formulates general rules for the weighing potential Titrimetric method of working reference reagents (capacity). The standard clarifies its scope of application, expounds the principle of the weighing potential Titrimetric method, and stipulates the equipment and reagents required for the experiment. Detailed description of the process from sample weighing, solution preparation to Potentiometric titration, poten-tiometry operation and data processing, providing a standard method for accurate determination of working reference reagents (capacity), ensuring the accuracy and reliability of reference reagents in capacity analysis, which is of great significance to the accuracy of chemical analysis and the traceability of the value.