| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for measuring interfacial tension and surface tension of liquid sample capable of accurately and reproducibly measuring the surface tension and interfacial tension of a low concentration detergent, a highly volatile solvent, a corrosive sample, and the like. SOLUTION: This device is provided with a liquid feeding device of the liquid sample having a shield part for preventing the sample from intruding into a clearance between a pressing bar and a cylindrical inner wall, a sample vessel for holding the liquid sample, a holding tool for fixing the liquid feeding device to the sample vessel, and a thermostat capable of holding the liquid feeding device, the sample vessel, and the holding tool together in an isothermal state.
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