Standard Test Method for Measuring Viscosity of New and Used Engine Oils at High Shear Rate and High Temperature by Tapered Bearing Simulator Viscometer at 150 °C

Importancia y uso:

5.1 Viscosity values at the shear rate and temperature of this test method have been indicated to be related to the viscosity providing hydrodynamic lubrication in automotive and heavy duty engines in severe service.7

5.2 The viscosities of engine oils under such high temperatures and shear rates are also related to their effects on fuel efficiency and the importance of high shear rate, high temperature viscosity has been addressed in a number of publications and presentations.7

Subcomité:

D02.07

Referida por:

D4485-24, D6616-21, D4741-21, D8185-23, D8074-23, D4741-21, D5481-21, D5481-21, D5481-21, D5481-21

Volúmen:

05.02

Número ICS:

75.100 (Lubricants, industrial oils and related products)

Palabras clave:

absolute viscometer; absolute viscometry; dynamic viscosity; engine oils; high shear rate viscosity; high shear viscosity; high temperature viscosity; high shear rate viscosity at 150 °C; rotational viscometer; rotational viscometry; Tapered Bearing Simulator Viscometer; TBS;