ASTM D2501 Test Method for Calculation of Viscosity-Gravity Constant (VGC) of Petroleum Oils
1. Scope
1.1 This test method covers the calculation of the viscosity-gravity constant (VGC) of petroleum oils2 having viscosities in excess of 4 cSt. = 4 x 10(-6)m(-2)/s at 40°C (104°F).
1.2 Annex A1 describes a method for calculating the VGC from Saybolt (SUS) viscosity and relative density.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
1.4 The values stated in either acceptable SI units or in other units shall be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system must be used independently of the other, without combining values in any way.
2. Referenced Documents
2.1 ASTM Standards:
D287 Test Method for API Gravity of Crude Petroleum and Petroleum Products (Hydrometer Method)
D445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and the Calculation of Dynamic Viscosity)
D1298 Practice for Density, Relative Density (Specific Gravity), or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method
D2140 Test Method for Carbon-Type Composition of Insulating Oils of Petroleum Origin
D4052 Test Method for Density and Relative Density of Liquids by Digital Density Meter
2.2 Other Document:
ASTM-IP Petroleum Measurement Tables
