GB 10738-1989 stipulates the general rules for weighing Titrimetric method for working reference reagents (capacity). This standard defines the scope of application, describes the basic principle of weighing Titrimetric method, and clarifies the required equipment and reagent conditions. Detailed description of the accurate weighing of the sample, the preparation of the titration solution, and the operation points in the titration process, such as titration speed, end point judgment, etc. According to this standard, the content of working reference reagents can be accurately determined, providing reliable reference materials for volume analysis, ensuring the accuracy and Reliability of chemical analysis data, and playing a key role in the field of chemical Measurement.