GB/T 265-1988: Petroleum products. Determination of kinematic viscosity and calculation of dynamic viscosity

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Scope

This method is, at a constant temperature, to measure the time for a certain
volume of liquid, which flows through a calibrated glass capillary viscometer,
under gravity. The product of the capillary constant of the viscometer multiplied
by the flow time, is the kinematic viscosity of the measured liquid, at that
temperature. At temperature t, the kinematic viscosity is represented by the
symbol vt.
The product of the kinematic viscosity, at this temperature, multiplied by the
density of the liquid, at the same temperature, is the dynamic viscosity of the
liquid. The dynamic viscosity at temperature t is represented by the symbol ηt.

Basic Data

Standard ID	GB/T 265-1988 (GB/T265-1988)
Description (Translated English)	Petroleum products. Determination of kinematic viscosity and calculation of dynamic viscosity
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	E30
Classification of International Standard	75.08
Word Count Estimation	1,161
Date of Issue	4/29/1988
Date of Implementation	4/1/1989
Older Standard (superseded by this standard)	GB 265-1983
Issuing agency(ies)	National Bureau of Standards
Summary	This standard applies to the determination of liquid petroleum products (refer Newtonian liquid) kinematic viscosity, the unit m ^ 2/s, normally used for the mm ^ 2/s in practice. Dynamic viscosity as measured by a kinematic viscosity of the liquid is obtained by multiplying the density.