Standard Test Method for Calculation of Viscosity-Gravity Constant (VGC) of Petroleum Oils

Importancia y uso:

5.1 The viscosity-gravity constant (VGC) is a useful function for the approximate characterization of the viscous fractions of petroleum.2 It is relatively insensitive to molecular weight and is related to a fluids composition as expressed in terms of certain structural elements. Values of VGC near 0.800 indicate samples of paraffinic character, while values close to 1.00 indicate a preponderance of aromatic structures. Like other indicators of hydrocarbon composition, the VGC should not be indiscriminately applied to residual oils, asphaltic materials, or samples containing appreciable quantities of nonhydrocarbons.

Subcomité:

D02.04.0K

Referida por:

D3189-06R21, D2226-93R22, D5964-16R21, D3568-03R22, D2140-24, D3189-06R21, D6074-15R22, D0471-16AR21, D0471-16AR21, D0471-16AR21

Volúmen:

05.01

Número ICS:

75.080 (Petroleum products in general)

Palabras clave:

aromatic; density; kinematic viscosity; paraffinic;