IEC 61868:1998
Mineral insulating oils - Determination of kinematic viscosity at very low temperatures
Ausgabedatum:
1998-11
Edition:
1.0
Sprache: EN-FR - zweisprachig englisch/französisch
Seitenzahl: 21 VDE-Artnr.: 208370
Specifies a procedure for the determination of the kinematic viscosity of mineral insulating oils, both transparent and opaque, at very low temperatures, after a cold soaking period of at least 20 h, by measuring the time for a volume of liquid to flow under gravity throught a calibrated glass capillary viscometer. Applies at all temperatures to both Newtonian and non-Newtonian liquids having viscosities of up to 20 000 mm2/s.