ASTM-D6616 Standard Test Method for Measuring Viscosity at High Shear Rate by Tapered Bearing Simulator Viscometer at 100 °C

ASTM-D6616 - 2017 EDITION - CURRENT
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Standard Test Method for Measuring Viscosity at High Shear Rate by Tapered Bearing Simulator Viscometer at 100 °C
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Scope

1.1 This test method covers the laboratory determination of the viscosity of engine oils at 100 °C and 1·106s–1 using the Tapered Bearing Simulator (TBS) viscometer.2

Note 1: This test method is similar to Test Method D4683 which uses the same TBS viscometer to measure high shear viscosity at 150 °C.

1.2 The Newtonian calibration oils used to establish this test method range from approximately 5 mPa·s (cP) to 12 mPa·s (cP) at 100 °C and either the manual or automated protocol was used by each participant in developing the precision statement. The viscosity range of the test method at this temperature is from 1 mPa·s (cP) to above 25 mPa·s (cP), depending on the model of TBS.

1.3 The non-Newtonian reference oil used to establish the shear rate of 1·106s–1 for this test method has a viscosity of approximately 10 mPa·s at 100 °C.

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

1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. This test method uses the milliPascal second (mPa·s) as the unit of viscosity. This unit is equivalent to the centiPoise (cP), which is shown in parentheses.

1.6 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 to determine the applicability of regulatory limitations prior to use.

Keywords

dynamic viscosity; high shear rate viscosity; high shear rate viscosity at 100 °C; high shear viscosity; high temperature viscosity; rotational viscometer; Tapered Bearing Simulator Viscometer;; ICS Number Code 17.060 (Measurement of volume, mass, density, viscosity)

To find similar documents by ASTM Volume:

05.03 (Petroleum Products and Lubricants (III): D6138 - D6971)

To find similar documents by classification:

17.060 (Measurement of volume, mass, density, viscosity Including measuring instruments Volumetric measurements of petroleum products and natural gas, see 75.180.30)

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Document Number

ASTM-D6616-17

Revision Level

2017 EDITION

Status

Current

Modification Type

Revision

Publication Date

Feb. 1, 2017

Document Type

Test Method

Page Count

13 pages

Committee Number

D02.07