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ASTM D3829-20a

Current Revision

Standard Test Method for Predicting the Borderline Pumping Temperature of Engine Oil

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1.1 This test method covers the prediction of the borderline pumping temperature (BPT) of engine oils through the use of a 16 h cooling cycle over the temperature range from 0 °C to −40 °C. The precision is stated for temperatures from –34 °C to –15 °C.

1.2 Applicability to petroleum products other than engine oils has not been determined.

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

1.3.1 Exception—This test method uses the SI based unit of milliPascal second (mPa·s) for viscosity, which is equivalent to centipoise (cP).

1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


5.1 Borderline pumping temperature is a measure of the lowest temperature at which an engine oil can be continuously and adequately supplied to the oil pump inlet of an automotive engine.

SDO ASTM: ASTM International
Document Number D3829
Publication Date Nov. 1, 2020
Language en - English
Page Count 8
Revision Level 20a
Supercedes
Committee D02.07
Publish Date Document Id Type View
Nov. 1, 2020 D3829-20A Revision
June 1, 2020 D3829-20 Revision
June 1, 2018 D3829-18 Revision
May 1, 2017 D3829-17 Revision
July 1, 2014 D3829-14 Revision
Nov. 1, 2012 D3829-12 Revision
Nov. 10, 2002 D3829-02 Revision
Nov. 1, 2007 D3829-02R07 Reaffirmation
April 10, 1998 D3829-93R98 Reaffirmation