IEC 61868:1998 

Mineral insulating oils - Determination of kinematic viscosity at very low temperatures


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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.

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Additional information

Publication typeInternational Standard
Publication date1998-11-16
Available language(s)English/French, Spanish
TC/SCTC 10 - Fluids for electrotechnical applicationsrss
ICS17.220.99 - Other standards related to electricity and magnetism
29.040.10 - Insulating oils
Stability date  2024
File size103 KB

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