NEN EN IEC 61868 : 1999
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MINERAL INSULATING OILS - DETERMINATION OF KINEMATIC VISCOSITY AT VERY LOW TEMPERATURES
Published date
12-01-2013
Publisher
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.
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