Standard Density Calculation (based on Specific Gravity)

Standard Density Calculation (based on Specific Gravity)

This method is used to calculate the standard density from the specific gravity



Standard density is calculated as follows:

General_Standard_SG

Symbol Description Units
ρstd Density at standard conditions kg/Sm3
SG Specific gravity -
pstd Standard pressure bar a
tstd Standard temperature K
zstd Compression factor at standard conditions -



Constant Description Value Units
R Universal Gas Constant 8.31451 J/mol/K
Mair Molar mass of dry air 28.9626 kg/kmol