GB/T 11985-1989 《Surface active agents--Determination of interfacial tension--Drop volume method》 Related products

GB/T 11985-1989 Determination of the interfacial tension of surfactants using the drop volume method. It specifies the specifications and accuracy of the required instruments, standardizes the preparation process of the test solution, and ensures the accurate concentration of the solution. The operation steps of the drop volume method are carefully described, including the specific requirements of droplet formation and volume measurement. Through this standard, the interfacial tension of surfactants under different conditions can be accurately determined. It provides key data for the performance research, quality control and application in industrial production of surfactants, and helps related industries optimize product formulations and processes.