Standard test method for low-temperature viscosity of automotive fluid lubricants measured by Brookfield viscometer
This method describes the use of the Brookfield viscometer for the determination of the low-shear-rate viscosity of automotive fluid lubricants in the temperature range from -5 to -40/sup 0/C. The viscosity range is 1000 to 1,000,000 cP (mPa.s). A lubricant fluid sample is cooled in an air bath at test temperature for 16 h. It is carried in an insulated container to a nearby Brookfield viscometer where its Brookfield viscosity is measured at any test temperature in the range from -5 to -40/sup 0/C. The low-temperature, low-shear-rate viscosity of gear oils, automatic transmission fluids, torque and tractor fluids, and industrial and automotive hydraulic oils are frequently specified by Brookfield viscosities.
- OSTI ID:
- 6539886
- Journal Information:
- Annu. Book ASTM Stand.; (United States), Vol. 25; Other Information: ANSI/ASTM-D--2983-80
- Country of Publication:
- United States
- Language:
- English
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