ASTM-D4683 2009

$44.96

D4683-09 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

Published By	Publication Date	Number of Pages
ASTM	2009	11

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Category: ASTM

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Description

ASTM D4683-09

Historical Standard: 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

ASTM D4683

Scope

1.1 This test method covers the laboratory determination of the viscosity of engine oils at 150 °C and 1.0·10⁶ s⁻¹ using a viscometer having a slightly tapered rotor and stator called the Tapered Bearing Simulator (TBS) Viscometer.

1.2 The Newtonian calibration oils used to establish this test method range from approximately 1.2 mPa·s to 7.7 mPa·s at 150 °C.

1.3 The non-Newtonian reference oil used to establish the shear rate of 1.0·10⁶ s⁻¹ for this test method has a viscosity closely held to 3.55 mPa·s at 150 °C.

1.4 Manual, semi-automated, and fully automated viscometers were used in developing the precision statement for this test method.

1.5 Application to petroleum products other than engine oils has not been determined in preparing the viscometric information for this test method.

1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6.1 This test method uses the milliPascal·second (mPa·s) as the unit of viscosity. This unit is equivalent to the centipoise (cP).

1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

dynamic viscosity; engine oils; high shear rate viscosity; high shear viscosity; high temperature viscosity; high shear rate viscosity at 150 °C; rotational viscometer; Tapered Bearing Simulator Viscometer; TBS; used engine oils; Automotive engine fuels/oils; Calibration–petroleum analysis instrumentation; Fuel oils; Loading tests–petroleum products; Lubricating oils; Newtonian fluids; Non-Newtonian fluids; Rotor position value; Shear testing–petroleum products; Tapered bearing simulator; Temperature tests–petroleum products; Torque–petroleum materials/applications; Viscometers–tapered bearing simulator-viscometer (TBS)

ICS Code

ICS Number Code 75.100 (Lubricants, industrial oils and related products)

DOI: 10.1520/D4683-09

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Test Method Significance and Use Apparatus
3	Materials Sampling FIG. 1
4	Preparation of Apparatus Establishing Operating Position of the Rotor for 1.0·10 s Shear Rate Viscosity Calibration of TBS Viscometer TABLE 1
6	Viscometric Analysis of Sample Oils Calculation Report
7	Precision and Bias Keywords A1. MODELS OF THE TAPERED BEARING SIMULATOR VISCOMETER A1.1 TABLE A1.1
8	FIG. A1.1 FIG. A1.2
9	FIG. A1.3 FIG. A1.4
10	A2. SOME EQUATIONS USED WITH ABSOLUTE TAPERED BEARING SIMULATOR VISCOMETRY A2.1 Background

Additional information

Standard Title	D4683-09 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
Published Code	ASTM
Publication Date	2009
Pages Count	11