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APPARENT VISCOSITY YIELD STRESS AND APPARENT VISCOSITY AT LOW TEMPERATURE: D4684
APPARENT VISCOSITY YIELD STRESS AND APPARENT VISCOSITY AT LOW TEMPERATURE: D4684EXPLANATIONWhen an engine oil is cooled, the rate and duration of cooling can affect its yield stress and viscosity. In this laboratory test an engine oil is slowly cooled through a temperature range where wax crystallization ...
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APPARENT VISCOSITY OF LUBRICATING GREASES: D1092
APPARENT VISCOSITY OF LUBRICATING GREASES: D1092EXPLANATIONApparent viscosity versus shear rate information is useful in predicting pressure drops in grease distribution systems under steady-state flow conditions at constant temperature. This test covers measurements in the temperature range from -53 ...
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APPARENT VISCOSITY AT HTHS BY MULTICELL CAPILLARY VISCOMETER: D5481
APPARENT VISCOSITY AT HTHS BY MULTICELL CAPILLARY VISCOMETER: D5481TEST SUMMARYThis test method covers the laboratory determination of high-temperature high-shear (HTHS) viscosity of engine oils at a temperature of 150° C using a multicell capillary viscometer containing pressure, temperature, and timing ...
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APPARENT VISCOSITY USING COLD CRANKING SIMULATOR: D5293
APPARENT VISCOSITY USING COLD CRANKING SIMULATOR: D5293EXPLANATIONThe cold cranking simulator (CCS) apparent viscosity of automotive engine oils correlates with low temperature engine cranking. CCS apparent viscosity is not suitable for predicting low temperature flow to the engine oil pump and oil distribution ...
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APPARENT VISCOSITY BY CAPILLARY VISCOMETER AT HIGH TEMPERATURE HIGH SHEAR: D4741
APPARENT VISCOSITY BY CAPILLARY VISCOMETER AT HIGH TEMPERATURE HIGH SHEAR: D4741TEST SUMMARYThis test method covers the laboratory determination of the viscosity of oils at 150° C and 1 x 10(6) s(-1) using Ravenfield high shear rate tapered-plug viscometer models BE or BS. This test method may readily ...
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APPARENT VISCOSITY BY CAPILLARY VISCOMETER AT HIGH TEMPERATURE HIGH SHEAR: D4683
APPARENT VISCOSITY BY CAPILLARY VISCOMETER AT HIGH TEMPERATURE HIGH SHEAR: D4683TEST SUMMARYThis test method covers the laboratory determination of the viscosity of engine oils at 150° C and 1 x 10(6) s(-1) shear rate using a tapered bearing simulator-viscometer (TBS Viscometer) equipped with a refined ...
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APPARENT VISCOSITY BY CAPILLARY VISCOMETER AT HIGH TEMPERATURE HIGH SHEAR: D4624
APPARENT VISCOSITY BY CAPILLARY VISCOMETER AT HIGH TEMPERATURE HIGH SHEAR: D4624TEST SUMMARYThis test method covers the laboratory determination of the viscosity of engine oils at 150° C and 1 x 10(6) s(-1) using capillary viscometers. Viscosities are determined directly from calibrations that have ...
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APPARENT VISCOSITY USING HTHS CAPILLARY VISCOMETERS
APPARENT VISCOSITY USING HTHS CAPILLARY VISCOMETERSSeveral different configurations of capillary viscometers have been successfully used for measuring the viscosity of engine oils at the high shear rates and high temperatures that occur in engines. There are at least five methods available for this determination.EXPLANATIONViscosity ...
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ANILINE AND MIXED ANILINE POINT: D611
ANILINE AND MIXED ANILINE POINT: D611(Equivalent Tests: IP 2, ISO 2977, DIN 51775, and AFNOR M07-02)EXPLANATIONThe aniline (or mixed aniline) point helps in characterization of pure hydrocarbons and in their mixtures. Aromatics exhibit the lowest and paraffins the highest values. Cycloparaffins and olefins ...
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ANALYSIS OF LPG AND PROPANE CONCENTRATES BY GC: D2163
ANALYSIS OF LPG AND PROPANE CONCENTRATES BY GC: D2163EXPLANATIONThe component distribution of liquefied petroleum gases (LPG) and propane concentrates is often required as a specification analysis for end-use sale of these materials. Precise compositional data are required to assure uniform quality of ...
