Objavljen
IEC 62961:2018 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.
OBJAVLJEN
IEC 62961:2018 ED1
60.60
Standard objavljen
20. 9. 2018.
Izolacione tečnosti – Metode ispitivanja za određivanje međupovršinskog napona izolacionih tečnosti – Određivanje metodom pomoću prstena
60.60 Standard objavljen