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ASTM D3829 2014 Edition, July 1, 2014
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Standard Test Method for Predicting the Borderline Pumping Temperature of Engine Oil
Additional Comments: ALSO SEE ASTM D3829 (R)
Page Count:8
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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.

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

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

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

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.

*A Summary of Changes section appears at the end of this standard