UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close

IEC 61868

Mineral Insulating Oils - Determination of Kinematic Viscosity at Very Low Temperatures

active, Most Current
Buy Now
Organization: IEC
Publication Date: 1 November 1998
Status: active
Page Count: 30
ICS Code (Insulating oils): 29.040.10
ICS Code (29.035.40): 29.035.40
ICS Code (Other standards related to electricity and magnetism): 17.220.99
scope:

This International Standard 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 through a calibrated glass capillary viscometer.

It is applicable at all temperatures to both Newtonian and non-Newtonian liquids having viscosities of up to 20 000 mm2 x s-1. It is particularly suitable for the measurement of the kinematic viscosity of liquids for use in cold climates, at very low temperatures (-40 °C) or at temperatures between the cloud and pour-point temperatures (typically -20 °C) where some liquids may develop unexpectedly high viscosities under cold soak conditions.

Document History

IEC 61868
November 1, 1998
Mineral Insulating Oils - Determination of Kinematic Viscosity at Very Low Temperatures
This International Standard 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...

References

Advertisement