Standard Test Method for Estimating Apparent Vapor Pressures and Molecular Weights of Lubricating Oils

Importancia y uso:

5.1 The vapor pressure of a substance as determined by measurement of evaporation reflects a property of the bulk sample. Little weight is given by the procedure to the presence of low concentrations of volatile impurities.

5.2 Vapor pressure, per se, is a thermodynamic property that is dependent only upon composition and temperature for stable systems. In the present method, composition changes occur during the course of the test so that the contribution of minor amounts of volatile impurities is minimized.

Subcomité:

D02.L0.07

Referida por:

D2879-23

Volúmen:

05.01

Número ICS:

75.100 (Lubricants, industrial oils and related products)

Palabras clave:

lubricating oils; molecular weight; vapor pressure;