NF EN IEC 62961

Insulating liquids - Test methods for the determination of interfacial tension of insulating liquids - Determination with the ring method

Le présent document spécifie le mesurage de la tension interfaciale entre un isolant liquide et l'eau par la méthode à l'anneau de Du Noüy proche des conditions d'équilibre. Pour obtenir une valeur, qui donne une expression plus réaliste de la véritable tension interfaciale, un mesurage après une maturation de l'interface d'environ 180 s est enregistré.

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