IEC 62961 Ed. 1.0 b:2018 Insulating liquids - Test methods for the determination of interfacial tension of insulating liquids - Determination with the ring method
standard by International Electrotechnical Commission, 09/20/2018
Full Description
IEC 62961:2018 establishes the measurement of the interfacial tension between insulating liquid and water by means of the Du Noy ring method close to equilibrium conditions. In order to obtain a value that provides a realistic expression of the real interfacial tension, a measurement after a surface age of approximately 180 s is recorded.