GB/T 11985-1989 "Surface active agents - Determination of interfacial tension - Drop volume method" specifies the method for determining the interfacial tension between a surfactant solution in water and another liquid phase (usually an oil phase) using the drop volume method. This method involves measuring the volume of droplets falling from a capillary tip under specific conditions, and then calculating the interfacial tension value between the two liquid phases through computation.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | G72 | ICS | 71.100.40 |
| Release Date | 1989-12-25 00:00:00 | Implementation Date | 1990-12-01 00:00:00 |