Standard Historical Last Updated: Nov 26, 2013 Track Document
ASTM D4683-10

Standard Test Method for Measuring Viscosity of New and Used Engine Oils at High Shear Rate and High Temperature by Tapered Bearing Simulator Viscometer at 150 °C

Standard Test Method for Measuring Viscosity of New and Used Engine Oils at High Shear Rate and High Temperature by Tapered Bearing Simulator Viscometer at 150 °C D4683-10 ASTM|D4683-10|en-US Standard Test Method for Measuring Viscosity of New and Used Engine Oils at High Shear Rate and High Temperature by Tapered Bearing Simulator Viscometer at 150 °C Standard new BOS Vol. 05.02 Committee D02
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Significance and Use

Viscosity values at the shear rate and temperature of this test method have been indicated to be related to the viscosity providing hydrodynamic lubrication in automotive and heavy duty engines in severe service.

The viscosities of engine oils under such high temperatures and shear rates are also related to their effects on fuel efficiency and the importance of high shear rate, high temperature viscosity has been addressed in a number of publications and presentations.

Scope

1.1 This test method covers the laboratory determination of the viscosity of engine oils at 150 °C and 1.0·106 s1 using a viscometer having a slightly tapered rotor and stator called the Tapered Bearing Simulator (TBS) Viscometer.

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Details
Book of Standards Volume: 05.02
Developed by Subcommittee: D02.07
Pages: 12
DOI: 10.1520/D4683-10
ICS Code: 75.100