IEC 62961
Insulating liquids – Test methods for the determination of interfacial tension of insulating liquids – Determination with the ring method
| Organization: | IEC |
| Publication Date: | 1 September 2018 |
| Status: | active |
| Page Count: | 45 |
| ICS Code (Insulating oils): | 29.040.10 |
scope:
This document establishes the measurement of the interfacial tension between insulating liquid and water by means of the Du Noüy 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.
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