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Significance and Use
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 to −40°C. The precision is stated for temperatures from -34 to -15°C.
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).
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E1137 Specification for Industrial Platinum Resistance Thermometers
ICS Number Code 75.100 (Lubricants, industrial oils and related products)
UNSPSC Code 15121501(Engine oil)