ASTM D287
Standard Test Method for API Gravity of Crude Petroleum and Petroleum Products (Hydrometer Method)
ASTM D1217
Standard Test Method for Density and Relative Density (Specific Gravity) of Liquids by Bingham Pycnometer
Standard Test Method for API Gravity of Crude Petroleum and Petroleum Products (Hydrometer Method)
Standard Test Method for Density and Relative Density (Specific Gravity) of Liquids by Bingham Pycnometer